Bsi bs en 62109 1 2010 (2011)

the decisive voltage of a circ it is the hig est voltage whic oc urs contin ou ly b twe n antwo arbitrary l ve p rts of the PCE d rin worst-case rated o eratin con ition when u ed as int

T is British Standard is th UK impleme tatio of EN 6210 -1:2010

It is id ntical to IEC 6210 -1:2010

T e UK par icipation in it pre aration was e t us e to T ch ical

Commit e GE /82, P otov oltaic En rgy S s ems

A ls of organiz tio s re rese te on this commit e can b

o taine o re u s to it secretary

T is pu lcatio d es not p rp r to includ al th n ces ary

prov isio s of a co t act User are resp nsible for it cor ect

T is British Standard w as p blsh d u d r th auth rity of th

Standards P lcy an St ate y Commit e o 31 Aug s 2010

A me dme t is u d since publcation

Date T x t affecte

31 July 201

Cor ectio to mis in A nne J

NORME EUROPÉENNE

EUROPÄISCHE NORM

July 2010

CENELEC

Euro e n Committee for Elec trot ec hnical Stan ardiz ation

Comité Euro é n de Normalsat ion Electrotec niq e

Euro äis hes K omitee für Elek trot ec hnisc he Normu g

Manage me nt Ce ntre: Aven e Ma rnix 17, B - 10 0 Bru sels

© 2 10 CENELEC - A ll rig t s of e ploit atio in a y form a d b a y me n re erv ed wo dwid for CENELEC memb rs

R ef No EN 6 10 - :2 10 E

ICS 2 16

En ls version

Safety of power conv ert ers for use in phot ov olt aic power syst ems -

Part 1: General requirement s

(IEC 62109-1:2010)

Séc rit é des conv ert i seurs de puis anc

ut il sés dans les réseaux d’énergie

photov olt ạque -

Part ie 1: Exigenc s générales

(CEI 62109-1:2010)

Sic erheit von Wechselric ht ern

z ur A nwendung in photov olt aisc hen

Energiesyst emen -

Tei 1: Allgemeine A nforderung n

(IEC 62109-1:2010)

This Euro e n Stan ard was a pro e b CENELEC o 2 10-0 -01 CENELEC memb rs are b u d to comply

with t he CEN/CENELEC Intern l Reg latio s which s p late the con it io s for givin t his Euro e n Stan ard

the status of a n tio al stan ard witho t a y alteratio

Up-to-d te lsts a d biblo ra hical refere ces conc ernin such n tio al stan ards ma b o tain d o

a plc atio t o the Ce tral Secretariat or to a y CENELEC memb r

This Euro e n St an ard e ists in thre oficial versio s (En lsh, Fre ch, Germa ) A versio in a y other

la g a e ma e b t ra slatio u d r the resp nsibi ty of a CENELEC memb r int o it s own la g a e a d n tifie

to the Ce tral Secretariat h s th same stat us as th oficial v rsio s

CENELEC memb rs are the n tio al electrotechnical commit tees of Aust ria, Belgium, Bulg ria, Cro tia, Cy rus,

the Cz ech Rep blc, De mark, Estonia, Finla d, Fra ce, Germa y, Gre ce, Hu g ry, Ic la d, Irela d, Italy,

L tvia, Lit hu nia, L ux mb urg, Malt a, the Netherla ds, Norway, Pola d, Portug l, Roma ia, Slo a ia, Slo e ia,

Sp in, Swe e , Swit zerla d a d t he United Kin d m

The t ex t of doc ment 8 /5 3/FDIS, fut ure edit ion 1 of IEC 6 10 -1, pre ared by IEC TC 8 , Solar

photovoltaic energ s stems, was s bmit t ed t o t he IEC-CENELEC p ralel vote an w as a prov ed by

CENELEC as EN 6 10 -1 on 2 10-0 -01

At t ent ion is drawn t o t he p s ibi ty t hat some of t he element s of t his doc ment may b t he s bject of

p t ent rig t s CEN an CENELEC s al not b held resp n ible for ident ifyin an or al s c p t ent

rig t s

The folowin dat es w ere fix ed:

– lat est date by whic the EN has t o b implement ed

at nat ional level by publcat ion of an identical

nat ional st an ard or by en orsement (do ) 2 1 -0 -01

– lat est date by whic the national st an ar ds conflct in

w it h t he EN hav e to b wit hdrawn (dow) 2 13-0 -01

An e ZA has b en ad ed by CENELEC

_ _

Endorsement notice

The t ex t of t he Int ernational St an ard IEC 6 10 -1:2 10 was a prov ed by CENELEC as a Euro e n

St an ard w ithout an modificat ion

_ _

Annex ZA

(normat ive)

Normat ive references t o international publ cat ions

with t heir cor esponding European publ cat ions

The folow in referen ed doc ment s are in isp n a le for t he a plcat ion of t his doc men F r dat ed

referen es, only t he edit ion cit ed a ples For u dated referen es, t he lat est edition of t he referen ed

doc ment in lu in an amen ment s) a ples

NOT Wh n a intern tio al p blc tio h s b e mo ifie b c ommo mo ific t io s, in ic t ed b (mo ), th relev ant EN/ HD

a ple

Publcation Y ear Tit le EN/HD Y ear

IEC 6 0 0-1 - Hig -v olt age test t ec niq es -

Part 1: General definit ion an test

IEC 6 1 2 - Met hod for t he determinat ion of t he pro f an

t he comp rat iv e t rac in in ices of sold

in ulat in mat erials

Part 2: Determinat ion of t hermal en uran e

pro erties of elect rical in ulat in mat erials -

Choice of t est crit eria

Part 6: Determinat ion of t hermal en uran e

in ices (TI an R TE) of an in ulatin mat erial

Publcation Y ear Tit le EN/HD Y ear

IEC 6 2 5-1 2 0 R ub er in ulated ca les - R at ed voltages up

t o an in lu in 4 0/ 75 V -

Part 1: General req irement s

IEC 6 3 9 Series Plu s, soc et -out let s an couplers for

in u t rial purp ses

EN 6 3 9 Series

IEC 6 3 0 Series Ap lan e couplers for hou ehold an simiar

gener al purp ses

EN 6 3 0 Series

IEC 6 3 4-1 (mod) 2 0 L w-voltage elect rical in talation -

Part 1: Fu dament al prin iples, as es ment of

gener al c aract erist ic , definition

HD 6 3 4-1 2 0

IEC 6 3 4-5-5

(mod)

- Elect r ical in t alat ion of buidin s -

Part 5-5 : Select ion an erect ion of elect r ical

eq ipment - Eart hin aran ement s,

prot ect iv e con u t ors an prot ect iv e b n in

con u t ors

HD 6 3 4-5-5 -

IEC 6 417 - Gra hical s mb ls for u e on eq ipment - -

IEC 6 5 9 - Degre s of prot ect ion provided by en los res

Part 3: Use of co tin , p t t in or mouldin for

prot ect ion again t p lution

EN 6 6 4-3 2 0

IEC 6 6 4-4 2 0 In ulat ion co rdinat ion for eq ipment within

low-voltage s st ems -

Part 4: Con ider at ion of hig -req en y

v olt age st res

EN 6 6 4-4

+ cor Oct ob r

2 0

2 0

IEC 6 6 5-2-1 - Fire hazard t est in -

Part 2-1 : Glowin / hot -w ire b sed t est

met hod - Glow-wire flamma i ty test met hod

for en -prod ct s

EN 6 6 5-2-1 -

IEC/TS 6 6 5-2-2 - Fire hazar d t est in -

Part 2-2 : Glowin / hot w ire b sed t est

met hod - Hot -w ire coi ig it abi ty -

App rat us, test met hod an g idan e

IEC 6 6 5-1 -5 - Fire hazar d t est in -

Part 1 -5: Test flames - Ne dle-lame t est

met hod - App rat us, confirmat or y t est

aran ement an g idan e

EN 6 6 5-1 -5 -

IEC 6 6 5-1 -10 - Fire hazar d t est in -

Part 1 -10: Test flames - 5 W horiz ont al an

v ert ical flame t est met hod

EN 6 6 5-1 -10 -

IEC 6 6 5-1 -2 - Fire hazar d t est in -

Part 1 -2 : Test flames - 5 0 W flame t est

met hod

EN 6 6 5-1 -2 -

Publcation Y ear Tit le EN/HD Y ear

IEC 6 7 0-1 (mod) 2 10 Aut omat ic elect rical cont rols for hou ehold

an simiar u e -

Part 1: General req irement s

EN 6 7 0-1 2 1X

1)

IEC/TR 6 7 5 - General req irement s for resid al c rent

o erated prot ect iv e devices

IEC 6 9 0-1 (mod) 2 0 Informat ion tec nolog eq ipment - Safety -

Part 1: General req irement s

EN 6 9 0-1

+ A 11

2 0

2 0

IEC 6 9 0 19 9 Met hod of me s rement of t ou h c r ent an

prot ect iv e con u t or c rent

EN 6 9 0 19 9

IEC 610 2 - Prot ection of p rson an eq ipment by

en los res - Pro es for verificat ion

IEC 6 0 0 - Elect r ical ac es ories - R esid al c rent

monit ors for hou ehold an simiar u es

(R CMs)

EN 6 0 0 -

ISO 17 - Plastic - Det erminat ion of flex ural pro ert ies EN ISO 17 -

ISO 17 Series Plastic - Det erminat ion of Charpy imp ct

ISO 2 2 - ISO general-purp se met ric s rew t hre d -

Select ed sizes for s rews, b lt s an n t s

ISO 5 7 Series Plastic - Det erminat ion of ten ie pro ert ies EN ISO 5 7 Series

ISO 3 4 - Acou t ic - Determinat ion of sou d p w er

lev els of noise sources u in sou d pres ure

-Survey met hod u in an env elo in

me s rement s race ov er a reflect in plane

ISO 9 14-1 - Acou t ic - Determinat ion of sou d p w er

lev els of noise sources u in sou d int en ity

-Part 1: Me s rement at dis ret e p int s

EN ISO 9 14-1 -

Publcation Y ear Tit le EN/HD Y ear

ISO 9 14-2 - Acou t ic - Determinat ion of sou d p w er

lev els of noise sources u in sou d int en ity

-Part 2: Me s rement by s an in

EN ISO 9 14-2 -

ISO 9 14-3 - Acou t ic - Determinat ion of sou d p w er

lev els of noise sources u in sou d int en ity

-Part 3: Precision met hod for me s rement by

s an in

EN ISO 9 14-3 -

ANSI/A STM E8 - St an ard Test Met hod for Surace Burnin

Charact eristic of Buidin Mat er i ls

ANSI/UL 7 6B - Polymeric Mat er i ls - L n -Term Pro erty

Evaluat ion

ANSI/UL 7 6C - Polymeric Mat er i ls - Used in Elect r ical

Eq ipment Ev aluat ion

ASTM E16 - St an ard Test Met hod for Surace

Flamma i ty of Materials Usin a R adiant

He t Ener gy Source

FOREWORD

8 INTRODUCTION 10 1 Sco e an o ject .1

1.1 Sco e .1

1.1.1 Eq ipment in lu ed in s o e .1

1.1.2 Eq ipment for whic other req irements may a ply 1

1.2 Object 1

1.2.1 Asp cts in lu ed in s o e 1

1.2.2 Asp cts ex lu ed f om s o e 12 2 Normative referen es .12 3 Terms an def i ition 15 4 General testin req irements .2

4.1 General .2

4.2 General con ition for testin 2

4.2.1 Seq en e of tests .2

4.2.2 Ref eren e test con ition 2

4.3 Thermal testin 2

4.3.1 General .2

4.3.2 Maximum temp ratures 2

4.4 Testin in sin le fault con ition 31

4.4.1 General .31

4.4.2 Test con ition an d ration f or testin u der fault con ition 31

4.4.3 Pas /f ai criteria for testin u der f ault con ition 3

4.4.4 Sin le f ault con ition to b a pl ed 3

4 5 Humidity precon itionin 3

4.5.1 General .3

4.5.2 Con ition 3

4.6 Bac fe d voltage protection 3

4.6.1 Bac fe d tests u der normal con ition 3

4.6.2 Bac f eed tests u der sin le-ault con ition 3

4.6.3 Compl an e with b c fe d tests 3

4.7 Electrical ratin s tests 3

4.7.1 Input ratin s 3

4.7.2 Output ratin s .3

5 Markin an doc mentation .3

5.1 Markin 3

5.1.1 General .3

5.1.2 Dura i ty of markin s .3

5.1.3 Identification 3

5.1.4 Eq ipment ratin s .3

5.1.5 Fu e identification 3

5.1.6 Terminals, con ection an controls .3

5.1.7 Switc es an circ it-bre kers 3

5.1.8 Clas I eq ipment 3

5.1.9 Terminal b xes f or external con ection 4

5.2.1 Visibi ty an legibi ty req irements for warnin markin s 4

5.2.2 Content for warnin markin s 4

5.2.3 Sonic hazard markin s an in tru tion 41

5.2.4 Eq ipment with multiple sources of s p ly .41

5.2.5 Ex es ive tou h c r ent 41

5.3 Doc mentation .4

5.3.1 General .4

5.3.2 Inf ormation related to in tal ation .4

5.3.3 Inf ormation related to o eration 4

5.3.4 Inf ormation related to maintenan e .4

6 En ironmental req irements an con ition 4

6.1 En ironmental categories an minimum en ironmental con ition 4

6.1.1 Outdo r .4

6.1.2 In o r, u con itioned 4

6.1.3 In o r, con itioned .4

6.2 Pol ution degre 4

6.3 In res protection .4

6.4 UV exp s re 4

6.5 Temp rature an h midity 4

7 Protection again t electric s oc an energ hazard 4

7.1 General .4

7.2 Fault con ition 4

7.3 Protection again t electric s oc 4

7.3.1 General .4

7.3.2 Decisive voltage clas ification 4

7.3.3 Protective se aration .5

7.3.4 Protection again t direct contact 5

7.3.5 Protection in case of direct contact .5

7.3.6 Protection again t in irect contact 6

7.3.7 In ulation in lu in cle ran e an cre p ge distan es 6

7.3.8 Resid al Cur ent Detection (RCD) or Monitorin (RCM) device comp tibi ty 7

7.3.9 Protection again t s oc hazard d e to stored energ 8

7.4 Protection again t energ hazard 8

7.4.1 Determination of hazardou energy level .8

7.4.2 Op rator ac es are s 81

7.4.3 Service ac es are s 81

7.5 Electrical tests related to s oc hazard 81

7.5.1 Impulse voltage test ( yp test 81

7.5.2 Voltage test (dielectric stren th test ( yp test an routine test 8

7.5.3 Partial dis harge test ( yp test or sample test 8

7.5.4 Tou h c r ent me s rement ( yp test 8

7.5.5 Eq ipment with multiple sources of s p ly .8

8 Protection again t mec anical hazard 8

8.1 General .8

8.2 Movin p rts 9

8.2.1 Protection of service p rson 9

8.3 Sta i ty .9

8.5 Wal mou tin 91

8.6 Exp l ed p rts 9

9 Protection again t fire hazard 9

9.1 Resistan e to fire .9

9.1.1 Red cin the ris of ig ition an spre d of flame .9

9.1.2 Con ition f or a f ire en los re 9

9.1.3 Materials req irements for protection again t f ire hazard 9

9.1.4 Op nin s in fire en los res 9

9.2 Limited p wer sources 10

9.2.1 General 10

9.2.2 Limited p wer source tests 10

9.3 Short-circ it an overc r ent protection .101

9.3.1 General 101

9.3.2 Numb r an location of overc r ent protective devices .101

9.3.3 Short-circ it co-ordination (b c up protection) 10

10 Protection again t sonic pres ure hazard 10

10.1 General 10

10.2 Sonic pres ure an sou d level .10

10.2.1 Hazardou noise levels 10

1 Protection again t l q id hazard 10

1 1 Liq id containment, pres ure an le kage .10

1 2 Fluid pres ure an le kage 10

1 2.1 Maximum pres ure 10

1 2.2 L akage f rom p rts 10

1 2.3 Overpres ure safety device .10

1 3 Oi an gre se .10

12 Chemical hazard 10

12.1 General 10

13 Ph sical req irements .10

13.1 Handles an man al controls 10

13.1.1 Adju ta le controls 10

13.2 Sec rin of p rts 10

13.3 Provision for external con ection 10

13.3.1 General 10

13.3.2 Con ection to an a.c main s p ly .10

13.3.3 Wirin terminals f or con ection of external con u tors .1 0

13.3.4 Sup ly wirin sp ce 1 1

13.3.5 Wire b n in sp ce for wires 10 mm

2

an gre ter 1 2

13.3.6 Dis on ection f om s p ly sources 1 2

13.3.7 Con ectors, plu s an soc ets 1 2

13.3.8 Direct plu -in eq ipment .1 3

13.4 Internal wirin an con ection 1 3

13.4.1 General 1 3

13.4.2 Routin 1 3

13.4.3 Colour codin 1 3

13.4.4 Spl ces an con ection 1 4

13.4.5 Intercon ection b twe n p rts of the PCE .1 4

13.7.2 2 0 N deflection test f or metal en los res 1 9

13.7.3 7 J imp ct test f or p lymeric en los res 1 9

14.2 Motor overtemp rature protection .12

14.3 Overtemp rature protection devices .12

14.8.3 Electrolyte spi age 12

14.8.4 Batery con ection 12

14.8.5 Batery maintenan e in tru tion 12

14.8.6 Batery ac es ibi ty an maintaina i ty .12

15 Sof tware an f irmware p rormin safety fu ction 12

An ex A (normative) Me s rement of cle ran es an cre p ge distan es .12

An ex B (normative) Programma le eq ipment .13

An ex C (normative) Symb ls to b u ed in eq ipment markin s .13

An ex D (inf ormative) Test pro es f or determinin ac es 13

An ex E (informative) RCDs 13

An ex F (inf ormative) Altitu e cor ection f or cle ran es 14

An ex G (inf ormative) Cle ran e an cre p ge distan e determination f or f req en ies

gre ter than 3 kHz 141

An ex H (inf ormative) Me s rin in trument for tou h c r ent me s rements (se

7.5.4) .14

An ex I (inf ormative) Examples of protection, in ulation, and overvoltage category

req irements for PCE 14

An ex J (normative) Ultraviolet l g t con itionin test 15

Fig re 1 – Fu ctional s mmary of protective me s res again t electric s oc 4

Fig re 3 – Typical wavef orm for d.c workin voltage 51

Fig re 4 – Typical wavef orm for pulsatin workin voltage 5

Fig re 5 – Examples f or protection again t direct contact for DVC-C circ its 5

Fig re 6 – Protection by DCV A with protective se aration 5

Fig re 7 – Protection by me n of protective imp dan e .5

Fig re 8 – Protection by l mitation of dis harge energ 5

Fig re 9 – Protection by me n of voltage lmitation 6

Fig re 10 – Examples of protective b n in an e rthin 61

Fig re 1 – Protective b n in imp dan e test for se arate u it with p wer f ed f om the PCE with overc r ent protection f or the p wer ca le 6

Fig re 12 – Protective b n in imp dan e test for se arate u it with ac es ible p rts an with p wer fed f rom the PCE without overc r ent protection .6

Fig re 13 – Voltage test proced res 8

Fig re 14 – Fire en los re b t om o enin s b low an u en losed or p rtial y en losed comp nent 9

Fig re 15 – Fire en los re b ff le con tru tion .9

Fig re 16 – Examples of cros -section of desig s of o enin s preventin vertical

ac es 1 5

Fig re 17 – Examples of lou er desig 1 5

Fig re 18 – En los re o enin s 1 6

Fig re 19 − Method of compl an e verification 12

Fig re A.1 – Nar ow gro ve 12

Fig re A.2 – Wide gro ve 12

Fig re A.3 – V-s a ed gro ve .12

Fig re A.4 – Rib 12

Fig re A.5 – Un emented joint with nar ow gro ve 12

Fig re A.6 – Un emented joint with wide gro ve 13

Fig re A.7 – Un emented joint with nar ow and wide gro ves .13

Fig re A.8 – Nar ow reces 13

Fig re A.9 – Wide reces 131

Fig re A.10 – Intervenin , u con ected con u tive p rt .131

Fig re A.1 – Distan e f or multi ayer PWBs .13

Fig re D.1 – Test fin er 13

Fig re D.2 – Test pin 13

Fig re D.3 – Straig t u jointed test f i ger .13

Fig re E.1 – Flow c art le din to selection of the RCD/RCM typ upstre m of a PCE .13

Fig re G.1 – Cle ran e distan e determination for f req en ies gre ter than 3 kHz 141

Fig re G.2 – Cre p ge distan e determination for feq en ies gre ter than 3 kHz 14

Fig re H.1 – Me s rin in trument 14

Fig re H.2 – Alternative me s rin in trument 14

Fig re I 1 – Tran former (b sic) isolated PV in erter 14

Fig re I 2 – Tran former (b sic) isolated PV in erter with SPD to red ce impulse

voltage f or fu ctional in ulation 14

Fig re I 3 – Isolated PV in erter with SPD to red ce impulse voltage f or b sic

Fig re I 4 – Tran former isolated au i ary circ it with reinf orced in ulation 14

Fig re I 5 – Tran f ormerles PV in erter 14

Ta le 1 – Total temp rature l mits f or tran f ormers, in u tors, an other coi s an their

in ulation s stems 3

Ta le 2 – Total temp rature l mits f or materials an comp nents where man facturer’s ratin s an comp nent stan ard do not exist (se 4.3.2.1) 3

Ta le 3 – Total tou h temp rature l mits for ac es ible s rf aces .31

Ta le 4 – En ironmental categories, en ironmental con ition , an test req irements 4

Ta le 5 – Red ction of the p l ution degre of internal en ironment throu h the u e of ad itional protection 4

Ta le 6 – Summary of the lmits of the decisive voltage clas es 4

Ta le 7 – Examples of a pl cation of in ulation an se aration .5

Ta le 8 – In ulation b twe n ac es ible u e rthed p rts and DVC-A or -B circ its adjacent to DVC-B or -C circ its 5

Ta le 9 – Values of ac es ible ca acitan e an c argin voltage ( hres old of p in) 5

Ta le 10 – Test d ration for protective b n in test 6

Ta le 1 – External protective e rthin con u tor cros -section .6

Ta le 12 – In ulation voltage f or low voltage circ its 71

Ta le 13 – Cle ran e distan es .7

Ta le 14 – Cre p ge distan es (mm) .7

Ta le 15 – Impulse voltage test .8

Ta le 16 – Impulse test voltage .8

Ta le 17 – AC or DC test voltage for circ its con ected directly to the main 8

Ta le 18 – a.c or d.c test voltage for circ its not con ected directly to the main 8

Ta le 19 – Partial dis harge test 8

Ta le 2 – Summary of material f lamma i ty req irements .9

Ta le 21 – Al owa le o enin s in fire en los re b toms .9

Ta le 2 – Limits f or in erently lmited p wer sources 101

Ta le 2 – Limits for p wer sources not in erently l mited .101

Ta le 2 – Sizes of con u tors 10

Ta le 2 – Ph sical tests on p wer s p ly cord 10

Ta le 2 – Wire b n in sp ce f om terminals to o stru tion 1 2

Ta le 2 – Minimum pro erty retention l mits af ter UV exp s re 1 8

Ta le 2 – Thic nes of s e t metal for en los res: Carb n ste l or stainles ste l .121

Ta le 2 – Thic nes of s eet metal for en los res: aluminium, co p r or bras 12

Ta le A.1 – Value of X .12

Ta le C.1 – Symb ls 13

Ta le F.1 – Cor ection factor for cle ran es at altitu es a ove 2 0 0 m (se 7.3.7.4.1) 14

Ta le F.2 – Test voltages f or verifyin cle ran es at dif f erent altitu es .14

Ta le G.1 – Minimum values of cle ran es in air at atmospheric pres ure for

in omogene u f ield con ition (Ta le 1 of IEC 6 6 4-4) .14

Ta le G.2 – Minimum values of cre p ge distan es f or dif ferent feq en y ran es

INTERNATIONAL ELECTROTECHNICAL COMMISSION

1 Th Intern tio al Ele trote h ic l Commis io (IEC) is a worldwid org niz tio for sta d rdiz tio c mprisin

al n tio al ele trote h ic l c mmite s (IEC Natio al Commite s) Th o je t of IEC is to promote

intern tio al c -o eratio o al q e tio s c n ernin sta d rdiz tio in th ele tric l a d ele tro ic field To

this e d a d in a ditio to oth r a tivitie , IEC p bls e Intern tio al Sta d rd , Te h ic l Sp cific tio s,

Te h ic l Re orts, Pu lcly Av ia le Sp cific tio s (P S) a d Guid s (h re f ter refere to a “IEC

Pu lc tio (s)”) Th ir pre aratio is e tru te to te h ic l c mmite s; a y IEC Natio al Commite intere te

in th s bje t d alt with ma p rticip te in this pre aratory work Intern tio al g v rnme tal a d n

n-g v rnme tal org niz tio s laisin with th IEC als p rticip te in this pre aratio IEC c la orate clo ely

with th Intern tio al Org niz tio for Sta d rdiz tio (ISO) in a c rd n e with c n itio s d termin d b

a re me t b twe n th two org niz tio s

2) Th f ormal d cisio s or a re me ts of IEC o te h ic l maters e pre s, a n arly a p s ible, a intern tio al

c n e s s of o inio o th rele a t s bje ts sin e e c te h ic l c mmite h s re re e tatio fom al

intere te IEC Natio al Commite s

3) IEC Pu lc tio s h v th form of e omme d tio s f or intern tio al u e a d are a c pte b IEC Natio al

Commite s in th t s n e Whie al re s n ble ef forts are ma e to e s re th t th te h ic l c nte t of IEC

Pu lc tio s is a c rate, IEC c n ot b h ld re p n ible f or th wa in whic th y are u e or for a y

misinterpretatio b a y e d u er

4) In ord r to promote intern tio al u iformity, IEC Natio al Commite s u d rta e to a ply IEC Pu lc tio s

tra s are tly to th ma imum e te t p s ible in th ir n tio al a d re io al p blc tio s An div rg n e

b twe n a y IEC Pu lc tio a d th c re p n in n tio al or re io al p blc tio s al b cle rly in ic te in

th later

5) IEC its lf d e n t pro id a y ate tatio of c nf ormity In e e d nt c rtif i atio b die pro id c nf ormity

a s s me t s rvic s a d, in s me are s, a c s to IEC mark of c nformity IEC is n t re p n ible for a y

s rvic s c rie o t b in e e d nt c rtif i atio b die

6) Al u ers s o ld e s reth t th y h v th late t e itio of this p blc tio

7) No la i ty s al ata h to IEC or its dire tors, emplo e s, s rv nts or a e ts in lu in in ivid al e p rts a d

memb rs of its te h ic l c mmite s a d IEC Natio al Commite s for a y p rs n l injury, pro erty d ma e or

oth r d ma e of a y n ture wh ts e er, wh th r dire t or in ire t, or for c sts (in lu in le al fe s) a d

e p n e arisin o t of th p blc tio , u e of, or rela c u o , this IEC Pu lc tio or a y oth r IEC

Pu lc tio s

8) Ate tio is drawn to th Normativ refere c s cite in this p blc tio Us of th refere c d p blc tio s is

in is e s ble for th c re t a plc tio of this p blc tio

9) Ate tio is drawn to th p s ibi ty th t s me of th eleme ts of this IEC Pu lc tio ma b th s bje t of

p te t rig ts IEC s al n t b h ld re p n ible for id ntif yin a y or al s c p te t rig ts

International Stan ard IEC 6 10 -1 has b en pre ared by IEC tec nical commit e 82: Solar

photovoltaic energ s stems

The text of this stan ard is b sed on the folowin doc ments:

The commit e has decided that the contents of this publ cation wi remain u c an ed u ti

the sta i ty date in icated on the IEC we site u der "htp:/we store.iec.c " in the data

related to the sp cif i publ cation At this date, the publ cation wi b

• recon rmed,

• with rawn,

• re laced by a revised edition, or

• amen ed

A bi n ual version of this publ cation may b is ued at a later date

IMPORTANT – The 'colour insid ' logo on the cov r pa e of this publ c tion indic te

that it contains colours whic are considere to be us f ul f or the cor e t

un ersta ding of its conte ts Us rs s ould th ref ore print this doc me t using a

colour printer

This Part of IEC 6 10 sp cifies the safety req irements that are general y a pl ca le to al

eq ipment within its s o e For certain typ s of eq ipment, these req irements wi b

s p lemented or modif ied by the sp cial req irements of one or more s bseq ent p rts (f or

example IEC 6 10 -2, IEC 6 10 -3, etc.) of the stan ard whic mu t b re d in conju ction

with the Part 1 req irements

This p rt of IEC 6 10 a pl es to the p wer con ersion eq ipment (PCE) for u e in

Photovoltaic (PV) s stems where a u iform tec nical level with resp ct to saf ety is neces ary

This stan ard def i es the minimum req irements f or the desig an manufacture of PCE f or

protection again t electric s oc , energ , f ire, mec anical an other hazard

This stan ard provides general req irements a pl ca le to al typ s of PV PCE There are

ad itional p rts of this stan ard that provide sp cific req irements for the dif f erent typ s of

p wer con erters, s c as Part 2 - in erters Ad itional p rts may b publs ed as new

prod cts an tec nologies are commercialsed

1.1.1 Equipme t include in s o e

This stan ard covers PCE con ected to s stems not ex e din maximum PV source circ it

voltage of 1 5 0 V d.c The eq ipment may also b con ected to s stems not ex e din

1 0 0 V a.c at the a.c main circ its, non-main a.c lo d circ its, an to other DC source or

lo d circ its s c as b teries This stan ard may b u ed f or ac es ories for u e with PCE,

ex e t where more a pro riate stan ard exist

Evaluation of PCE to this stan ard in lu es evaluation of al f eatures an f un tion

in orp rated in or avai a le f or the PCE, or refer ed to in the doc mentation provided with the

PCE, if s c fe tures or fu ction can af fect compl an e with the req irements of this

stan ard

1.1.2 Equipme t for whic oth r re uireme ts ma apply

This stan ard has not b en writ en to ad res c aracteristic of p wer sources other than

photovoltaic s stems, s c as win turbines, f uel cel s, rotatin mac ine sources, etc

NOT 1 Re uireme ts for oth r s urc s ma b in orp rate in th IEC 6 10 s rie in th future

Ad itional or other req irements are neces ary f or eq ipment inten ed f or u e in explosive

atmospheres (se IEC 6 0 9), aircraft, marine in tal ation , electromedical a plcation (se

IEC 6 6 1) or at elevation a ove 2 0 0 m

NOT 2 Re uireme ts are in lu e for a ju tme t of cle ra c dista c s f or hig er ele atio s, b t n t f or oth r

f actors relate to ele atio , s c a th rmal c n id ratio s

1.2 Obje t

1.2.1 Aspe ts in lude in s ope

The purp se of the req irements of this p rt of IEC 6 10 is to en ure that the desig an

method of con tru tion u ed provide adeq ate protection f or the o erator an the

s r ou din are again t:

a) electric s oc an energ hazard ;

c) ex es ive temp rature hazard ;

d) spre d of ire f om the eq ipment;

e) c emical hazard ;

f ) sonic pres ure hazard ;

g) l b rated fluid , gases an explosion hazard

NOT Servicin p rs n el are e p cte to h v th n c s ary k owle g a d s i to u e re s n ble c re in

d aln with h z rd a s ciate with th o eratio , re air a d mainte a c of this e uipme t Ba e u o this

premis , this sta d rd pro id s o ly lmite re uireme ts (or e ample markin s or g ardin ) inte d d to prote t

s rvic p rs n el fom h z rd th t ma n t b a p re t e e to train dp rs n el

1.2.2 Aspe ts e clude f rom s o e

Asp cts not covered by this stan ard in lu e, but are not l mited to, the fol owin :

a) fu ctional rel a i ty, p rf orman e or other pro erties of the eq ipment not related to

saf ety;

b) efectivenes of tran p rt p c agin ;

c) EMC req irements;

d) in tal ation req irements, whic are covered by local an national in tal ation codes

NOT This sta d rd d e pro id re uireme ts f or P E inte d d to e s re th t th P E c n b in tale in a

s f e ma n r, in lu in re uireme ts f or in talatio in tru tio s pro id d with th pro u t

2 Normative references

The f ol owin ref eren ed doc ments are in isp n a le f or the a pl cation of this doc ment

For dated referen es, only the edition cited a pl es For u dated ref eren es, the latest edition

of the ref eren ed doc ment (in lu in an amen ments) a pl es

IEC 6 0 0-1, H igh-voltag test te h iq es − Part 1: Ge eral definitio s a d test re uireme ts

IEC 6 0 5, E le tric l nsulat io – Th rmal e al uat ion a d d esi gn t ion

IEC 6 1 2, Method for t he det ermination oft he pro f a d th c mp rativ tra kin ind ic s of

solid i nsulatin mat erials

IEC 6 216-1, El ectric l insul at ing mat erials – Pro ert ies of t hermal e dura c – Part 1:

Ag i ng pro edures a d e alu tion of test resul ts

IEC 6 216-2, El ectric l insulat in materials – Th rmal e d ura c pro erties – Part 2:

Determinat io ofthermal e dura c pro erties of el ectric l insulat in materials – Ch ic of

test criteria

IEC 6 216-3, El ectric l insulat in materials – Th rmal e d ura c pro erties – Part 3:

I nstru tions for c lcul ating thermal e d ura c c ara terist ics

IEC 6 216-4-1, El ectric l insulating mat erials – Th rmal e d ura c pro ert ies – Part 4-1:

Ag ing o e s − Se t ion 1: Single-c amb r ovens

IEC 6 216-5, Electric l insulat in mat erials – Th rmal e d ura c pro erties – Part 5:

Determinatio ofrel at ive thermal e dura c ind ex (RTE) of a insul ating mat erial

IEC 6 216-6, Electric l insulat in mat erials – Th rmal e d ura c pro erties – Part 6:

Determinatio ofthermal e d ura c ind ic s (TI a d RTE) ofa insul at ing material using t he

IEC 6 2 7-1:2 0 , P olyvinyl c l orid e insul ated c bl es of rated v l ta es u to a d in l ud ing

450/7 50 V - Part 1: Ge eral re uireme ts

IEC 6 2 5-1:2 0 , Ru b r insulated c bl es – Rat ed voltag s u t o a d in lud i ng 450/750 V –

Part 1: Ge eral re uireme ts

IEC 6 3 9 (al p rts), Pl ugs, so k et-o t l ets a d c u l ers for ind ustrial p rp ses

IEC 6 3 0 (al p rts), Ap li an es c u lers for h use ol d a d simil ar g n ral p rp ses

IEC 6 3 4-1:2 0 , L w-v lt ag el ectric l instal l ations – Part 1: Fu dame tal principles,

as es me t ofg n ral c ara teristics, d efinitions

IEC 6 3 4-5-5 , Ele tric l inst all ations of b il d ings – Part 5-54: Sel ection a d ere t ion of

ele tric l e uipme t – E arthin ar a g ments, prot ect ive c ndu tors a d prot ect ive b nd ing

c nd uct ors

IEC 6 417, Gra hic l symb ls for use o e uipme t

IEC 6 5 9, De re s of prot ection pro id ed b e cl osures (IP Cod e)

IEC 6 6 4-1:2 0 , Insul at ion c ordinat ion for e uipme t within l ow-voltag systems – Part 1:

P rincipl es, re uireme ts a d tests

IEC 6 6 4 (al p rts), Insulatio c ordination for e uipme t wit hin l ow-v l ta e systems

IEC 6 6 4-3:2 0 , Insul ation c ord in t ion for e uipme t within l ow-voltag syst ems − Part 3:

Use of c ati ng, p ttin or mo l d i ng for protectio a ai nst p l l tio

IEC 6 6 4-4:2 0 , Insul at ion c ordinat ion for e uipme t withi n l ow-v ltag syst ems – Part 4:

Co sid erat ion of high-fe u n y voltag stres

IEC 6 6 5-2-1 , F ire h z rd test ing – P art 2-1 : Glowing/h t wire b sed test meth ds −

Glow-wire fl amma ility test met hod for e d-prod ucts

IEC 6 6 5-2-2 , Fire h z rd testin – Part 2-2 : Gl owing/h t wire b sed test meth ds

− H o

t-wire c il ignitabil ity − Ap aratus, test method a d g id an e

IEC 6 6 5-1 -5, Fire h z rd testing – Part 1 -5: Test flames – N eed le-fl ame test method –

Ap arat us, c nfirmatory test ara g me t a d g idan e

IEC 6 6 5-1 -10, F ire h z rd testin – Part 1 -10: Test flames – 50 W h rizo tal a d vert ic l

fl ame test met hods

IEC 6 6 5-1 -2 , Fire h z rd testing – Part 1 - 2 : Test fl ames – 50 W fl ame test methods

IEC 6 7 0-1:2 10, Aut omatic electric l c ntrols for h use ol d a d simil r use – Part 1:

Ge eral re uireme ts

IEC 6 7 5, Ge eral re uireme ts for residu l c re t o erated prot ective d evic s

IEC 6 9 0-1:2 0 , Informat io tec n lo y e uipme t − Safety − Part 1: Ge eral re uireme ts

IEC 610 2, P rot ect ion of p rso s a d e uipme t b e closures – Pro es for v rific tio

IEC 61 8 -1, High-v l ta e test tec niqu s for l ow v l tag e uipme t – Part 1: Definiti ons,

test a d pro ed ure re uireme ts

IEC 6 0 0, El ectric l a c s ories – Resid ual c r e t mo itors for h use ol d a d simil ar uses

(RCMs)

ISO 17 , Pl astics – Determin tion of flex ral pro erties

ISO 17 (al p rts), Pl astics – Det ermin tion of Ch rp imp ct pro ert ies

ISO 18 , Pl ast ics – Determin t ion of Iz d imp ct stre gt h

ISO 2 1, I SO g n ral p rp se met ric screw thre d s – Ge eral pl an

ISO 2 2, ISO g n ral p rp se metric screw t hre ds – Sel ected sizes for screws, b l ts a d

n ts

ISO 5 7 (al p rts), Pl astics – Det ermin tion of tensil pro ert ies

ISO 3 4 , Ac ustics − Determinat io of so nd p wer l ev ls of n ise so rc s using so nd

pres ure − Surv y meth d usin a e v l opin me sureme t sura e o er a refle tin pl an

ISO 4 9 -1, Pl ast ics – Methods of ex posure t o l ab rat ory l ight so rc s – Part 1: Ge eral

ISO 7 0 , Gra hic l symb ls for use o e uipme t – I nd ex a d sy o sis

ISO 8 5 , Plast ics – Det erminat ion of t ensil e-imp ct stre gth

ISO 9 14-1, Ac ust ics

− Det ermi nat ion ofso nd p wer levels of n ise so rc s using so nd

intensity − P art 1: Measureme t at d iscret e p ints

ISO 9 14-2, Ac ust ics – Det erminat ion of so nd p wer levels of n ise so rc s using so nd

int ensity – P art 2: Measureme t b sc n ing

ISO 9 14-3, Ac ust ics – Det erminat ion of so nd p wer levels of n ise so rc s using so nd

intensity – Part 3: P re ision meth d for me sureme t b sc n ing

ANSI/ASTM E8 , St and ard Test Meth d for Sura e Burnin Ch ra t eristics of Buil d in

Mat erials

ANSI UL 7 6B, Polymeric Materials – L n Term Pro erty Evalu t ions

ANSI UL 7 6C, Polymeric Materials – Use in Ele tric l Equipme t Evalu tions

ASTM E16 , St andard Test Method for Sura e Fl amma il i ty of Materials U si ng a Rad ia t

3 Terms and def initions

For the purp ses of this doc ment, the fol owin terms and def i ition a ply

NOT Unle s oth rwis s e if i d, v lu s of v lta e" a d "c re t" are th r.m.s v lu s of a altern tin , dire t

bat ery type

the b t ery c emistry (e.g le d-acid) an typ (e.g flo ded, gel, etc.) or typ s of b teries

inten ed for u e with the PCE

3.4

bat ery - s ale

a b t ery with no provision for the ad ition of water or electrolyte, an con tru ted so as to

prevent the emis ion of lq id or gas es u der normal o eration

3.5

bat ery - non-s ale

a b t ery with remova le ca s or other provision f or ad ition of water an /or electrolyte

3.6

bat ery - v lv re ulate

a se led b tery with provision for the rele se of ex es ive pres ure u der a normal

con ition

3.7

bipolar photovoltaic (PV) ar a

a photovoltaic ar ay that con ists of two intercon ected ar ay where one output con ection

of one ar ay is con ected to the o p site p larity output con ection of the other ar ay to

cre te a common electrical node, simi ar to a centre-ta p d tran former

3.8

cle ra c

s ortest distan e in air b twe n two con u tive p rts

3.9

clos d ele tric l o eratin are

ro m or location f or electrical eq ipment to whic ac es is restricted to s i ed or in tru ted

p rson by the o enin of a do r or the removal of a b r ier by the u e of a key or to l an

whic is cle rly marked by a pro riate warnin sig s

3.10

comparativ tra king inde (CTI)

the voltage, as determined u der the con ition sp cified in IEC 6 1 2, that cau es a

p rmanent electrical y con u tive carb n p th with the a pl cation of 5 dro s of electrolyte

the decisive voltage of a circ it is the hig est voltage whic oc urs contin ou ly b twe n an

two arbitrary l ve p rts of the PCE d rin worst-case rated o eratin con ition when u ed as

inten ed (se Decisive Voltage Clas l mits in 7.3.2)

a p rt of the eq ipment whic s r ou d internal p rts, inten ed to provide protection again t

external influen es, again t the spre d of fire, or again t ac es to hazard

3.2

e vironme tal c te ory

the set of ambient con ition to whic the PCE is exp sed in its in tal ation, as defined in

e uipote tial b ndin con uctor

con u tor electrical y con ectin metal p rts to provide eq ip tential b n in

3.2

EUT

eq ipment u der test

3.2

Extra Low Volta e (ELV)

voltage not ex e din the relevant voltage l mit of b n I sp cified in IEC 6 4 9

a p rt of the eq ipment whic s r ou d internal p rts, inten ed to minimize the spre d of f ire

or flamin materials f rom within

f lammabi ty cla sif ic tion of materials

the recog ition of the burnin b haviour of materials an their a i ty to extin uis if ig ited

Materials are clas if ied as in the def i ition in this stan ard, when tested in ac ordan e with

V M

- a d

V M-

b ter th n V M-2

NOT 4 Materials of f l mma i ty cla s s V M-0, V M- a d V M-2 are c n id re to b e uiv le t to materials of

f l mma i ty cla s s V-0, V- a d V-2, re p ctiv ly, b t o ly for th ir f l mma i ty pro ertie Th ir ele tric l a d

me h nic l pro ertie are n t n c s ariy e uiv le t

in ulation that is neces ary only for the cor ect o eration of the eq ipment

NOT Fu ctio al in ulatio b d f i itio d e n t prote t a ain t ele tric s o k It ma , h we er, re u e th

p tential source of harm fom an of the mec anisms covered by this stan ard, s c as ris

of electric s oc , ris of fire, etc

3.3

hazardous e ergy le el

an avai a le p wer level of 2 0 VA or more havin a d ration of 6 s or more, or a stored

energ level of 2 J or more (for example, f rom one or more ca acitors), at a p tential of 2 V

homoge eous f ield (distribution)

a homogeneou field is an electric field whic has an es ential y con tant voltage gradient

b twe n electrodes (u iform field), s c as that b twe n two spheres where the radiu of

e c sphere is gre ter than the distan e b twe n them

3.3

in oor, uncon itione

eq ipment en ironmental clas if i ation in whic the PCE is f ul y covered by a bui din or

en los re to protect it fom direct rain, s n, win -blown du t, f un u , an radiation to the cold

nig t s y, etc, but the bui din or en los re is not con itioned in terms of temp rature,

h midity or air f iltration, an the eq ipment may exp rien e con en ation

3.3

in oor, conditione

eq ipment en ironmental clas if i ation in whic the PCE is f ul y covered by a bui din or

en los re to ful y protect it f om rain, s n, win -blown d st, fu g s, an radiation to the cold

nig t s y, etc, an the bui din or en los re is general y con itioned in terms of temp rature,

h midity an air fi tration Con en ation is not exp cted

3.3

in omoge eou distribution (of a ele tric field)

in omogene u distribution of an electric f ield refers to a field whic do s not have an

es ential y con tant voltage gradient b twe n electrodes (non-u iform field)

3.3

Is PV

a solute maximum total PV ar ay s ort circ it c r ent (d.c.) that the PCE is rated to have

con ected to its PV input, u der worst-case con ition of ambient temp rature, ir adian e,

etc

NOT This ratin of th P E ref ers to th a s lute ma imum c re t th P in ut to th P E is d sig e f or

u d r c n itio s of e p cte u e This dif fers fom th simple s m of th mark d Is ratin s of th c n e te P

mo ule , sin e th s markin s are b s d o s ort-circ it c n itio s u d r sta d rd te t c n itio s, a d ma b

a set of voltage levels u ed for the distribution of electricity an whose up er l mit of the l n

e-to-l ne or l ne-to-neutral voltage is 1 0 0 V a.c or 1 5 0 V d.c

c r ent-car yin con u tor, terminal, or circ it p int whic is intentional y b n ed to e rth

NOT Th terms e rth d n utral a d gro n e c n u tor are als in c mmo u e In this sta d rd, th term

n utral ref ers to a y p wer circ it (main , P , b tery, etc.) n t ju t th main

3.4

normal con ition

con ition in whic al me n for protection again t hazard are intact an the PCE is in tal ed

an o erated in ac ordan e with its ratin s an in tal ation in tru tion

– the me n of ac es is delb rately provided to the o erator, or

– the o erator is in tru ted to enter regardles of whether a to l is ne ded to gain ac es

3.5

outdo r

eq ipment en ironmental clas if i ation in whic the PCE is ful y or p rtly exp sed to direct

rain, s n, win , d st, f un u , ice, con en ation, radiation to the cold nig t s y, etc an to

ov rvolta e c te ory (OVC)

n meral desig ation def i in a clas if i ation of tran ient overvoltage con ition

[IEC 6 6 4-1]

NOT 1 Se 7.3.7.1.2 f or a d s riptio of th fo r o erv lta e c te orie

NOT 2 A tra sie t o erv lta e is d fin d a a ‘s ort d ratio o erv lta e of a f ew mi is c n s or le s,

o ci atory or n n-o ci atory, u u ly hig ly d mp d’ [IEV 6 4-0 - 3] It s o ld n t b c nfu e with a temp rary

o erv lta e (swel), whic is d fin d a a ‘p wer fe u n y o erv lta e of relativ ly lo g d ratio ’ [IEV 616-01 16]

3.5

partial dis harge e tinction volta e (U

e)

lowest p ak value of the test voltage at whic the a p rent c arge b comes les than the

sp cified dis harge mag itu e when the test voltage is red ced b low a hig level where

– u der sin le f ault con ition , ex e t e rth faults in other electric circ its

NOT PELV is th a bre iatio for prote tiv e tra low v lta e

an as embly of comp nents s c as photovoltaic p nels, ca les, con ectors, combiners, etc

that prod ces an s p l es d.c electricity by the con ersion of solar energ

3.5

pluggable e uipme t type A

eq ipment whic is inten ed f or con ection to the bui din in tal ation wirin via a non

-in u trial plu an soc et-outlet or a non-in u trial a pl an e coupler, or b th

3.5

pluggable e uipme t type B

eq ipment whic is inten ed for con ection to the bui din in tal ation wirin via an in u trial

plu an soc et-outlet or an a pl an e coupler, or b th, complyin with IEC 6 3 9 or with a

comp ra le national stan ard

NOT P circ its th t u e c n e tors are c n id re plu g ble ty e B or fix d e uipme t

3.5

pol ution

ad ition of foreig mater, sold, l q id or gase u (ionized gases), that may prod ce a

normal y only non-con u tive p l ution oc urs Oc asional y, however, a temp rary

con u tivity cau ed by con en ation mu t b exp cted

3.6

pol ution de re 3

con u tive p l ution oc urs, or dry, non-con u tive p l ution oc urs whic b comes

con u tive d e to con en ation whic is expected

3.6

port

location givin ac es to a device or network where electromag etic energ or sig als may b

s p led or received or where the device or network varia les may b o served or me s red

3.6

portable e uipme t

plu ga le eq ipment inten ed to b moved f rom place to place

3.6 power con ersion e uipme t (PCE)

an electrical device con ertin one kin of electrical p wer fom a voltage or c r ent source

into another kin of electrical p wer with resp ct to voltage, c r ent an f eq en y

NOT Ex mple in lu e A -D c n erters, D -A in erters, D -D c arg c ntrolers, fe u n y c n erters,

etc

3.6

prote tive bon ing

electrical con ection of ac es ible con u tive p rts or of protective s re nin to provide

electrical contin ity to the protective con u tor terminal

3.6

prote tive bon ing condu tor

a con u tor u ed to intercon ect ac es ible con u tive p rts or protective s re nin for the

purp se of protective b n in

3.6

prote tive cla s I

protection again t electric s oc by me n of b sic in ulation an protective e rthin of

ac es ible con u tive p rts, so that ac es ible con u tive p rts can ot b come l ve in the

event of a f ai ure of the b sic in ulation

3.7

prote tive cla s I

protection again t electric s oc that do s not rely on b sic in ulation only, but in whic

ad itional saf ety precaution s c as double in ulation or reinf orced in ulation are provided,

prote tive cla s I

eq ipment in whic protection again t electric s oc rel es up n s p ly f rom decisive voltage

clas ification A circ its an in whic hazardou voltages are not generated

NOT For clas I e uipme t, alth u h th re is n re uireme t for prote tio a ain t ele tric s o k, al oth r

re uireme ts of th sta d rd a ply

3.7

prote tive e rthing

con ection of a p int in the eq ipment, s stem, or in tal ation to e rth, f or protection again t

electric s oc in case of a fault

3.7

prote tive e rthing conductor

a con u tor u ed to con ect an eq ipment, s stem, or in tal ation to e rth, for protection

again t electric s oc in case of a f ault

3.7

prote tive cond ctor terminal

terminal whic is b n ed to con u tive p rts of an eq ipment for safety purp ses an is

provided f or the con ection of a protective e rthin con u tor

3.7

prote tive impe a c

comp nent, as embly of comp nents or the combination of b sic in ulation an a c r ent or

voltage-l mitin device, whose imp dan e, con tru tion an rel a i ty are s c that, when

con ected b twe n ac es ible con u tive p rts an p rts whic are hazardou l ve, it

provides protection to the extent req ired by this stan ard in normal con ition an sin le fault

con ition

3.7

prote tive s paration

a con tru tion me n to maintain the se aration b twe n circ its of diff erent protection levels

even in the event of a sin le fault as des rib d in 7.3.3

NOT Prote tiv s p ratio is a s p ratio b twe n circ its b me n of b sic a d s p leme tary prote tio

(b sic in ulatio plu s p leme tary in ulatio or prote tiv s re nin ) or b a e uiv le t prote tiv pro isio (or

e ample, reinforc d in ulatio or prote tiv imp d n e)

ref ere c te t conditions

the electrical, o eratin , an en ironmental con ition u der whic testin is to b p r ormed,

reinforc d ins lation

sin le in ulation s stem a pl ed to l ve p rts, whic provides a degre of protection again t

electric s oc eq ivalent to double in ulation u der the con ition sp cified

NOT A sin le in ulatio s stem d e n t imply th t th in ulatio mu t b o e h mo e e u pie e It ma

c mpris s v ral la ers whic c n ot b te te sin ly a b sic or s p leme tary in ulatio

in ivid al or group resp n ible for the u e an maintenan e of eq ipment an f or en urin

that o erators are adeq ately trained

test to whic e c in ivid al device (eq ipment is s bjected d rin or after man f acture to

as ertain whether it conforms to certain criteria

[IEV 151-0 -16, modified]

3.8

s fety interloc

a me n either of preventin ac es to a hazardou are u ti the hazard is removed, or of

automatical y removin the hazardou con ition when ac es is gained

a circ it whic has no direct con ection to a main circ it an derives its p wer fom a

tran former, con erter or eq ivalent isolation device, or f om a b t ery or other p wer source

not con ected to the main (e.g the PV circ it in isolated PCE)

3.8

SELV s stem

electric s stem in whic the voltage can ot ex e d the value of e tra l ow volt ag :

– u der normal con ition an

– u der sin le f ault con ition , in lu in e rth f aults in other electric circ its

NOT S LV is th a bre iatio f or s fety e tra low v lta e

[IEV 8 6-12-31]

3.8

s rvic personnel

a p rson havin a pro riate tec nical trainin an exp rien e neces ary to b aware of

hazard to whic that p rson may b exp sed in p r ormin a tas an of me s res to

in e en ent in ulation a pl ed in ad ition to b sic in ulation in order to provide protection

again t electric s oc in the event of a f ai ure of b sic in ulation

test of one or more samples (prototyp s) of eq ipment (or p rts of eq ipment made to a

p rtic lar desig , to s ow that the desig an con tru tion me t one or more req irements of

maximum rated d.c input voltage the PCE is desig ed to with tan f om the PV ar ay (i.e

maximum o en-circ it voltage) u der worst-case con ition of ambient temp rature,

ir adian e, etc

3.9

wet loc tion

location where water or another con u tive lq id may b present an is lkely to cau e

red ced h man b d imp dan e d e to wetin of the contact b twe n the h man b d an

working volta e

voltage whic oc urs by desig in a circ it or acros in ulation, when the PCE is o erated

u der the worst case combination of hig est an lowest rated voltages f or e c p rt, an

u der worst-case normal o eratin con ition Se 7.3.2.6

4 General testing requirements

4.1 Ge eral

Testin is req ired by this stan ard to demon trate that the EUT is f ul y in ac ordan e with

the a pl ca le req irements of this stan ard This clau e of this stan ard provides:

– general con ition an req irements u der whic testin s al b car ied out;

– some of the actual tests req ired to b p rf ormed, where those tests are general in

nature an are not sp cifical y related to one p rtic lar typ of hazard (for example

thermal tests)

Other test req irements that are sp cific to a p rtic lar typ of hazard are located in the

a pro riate clau e elsewhere in this stan ard

Tests on s b s embles of the eq ipment me tin the req irements of the relevant referen e

stan ard sp cif ied in this stan ard, an u ed in ac ordan e with them an in con ition not

more severe than those a pl ed d ring testin to determine compl an e with the referen e

stan ard , ne d not b re e ted d rin typ tests of the whole eq ipment

To en ure that eq ipment wi not b come hazardou in exp cted h midity con ition , as

sp cified in Ta le 4, the EUT is to be s bjected to h midity precon itionin ac ordin to 4.5

b fore certain tests, where sp cified elsewhere in this stan ard

Where a me s red value is close to a compl an e l mit, analy is of the me s rement

u certainty s al b done to determine compl an e

Compl an e with the req irements of this stan ard is c ec ed by car yin out al a pl ca le

tests in this stan ard, ex e t that a test may b omit ed if examination of the eq ipment

demon trates con lu ively that the eq ipment would p s the test

Tests are car ied out u der ref eren e test con ition (se 4.2.2), and tests u der b th normal

an sin le f ault con ition are sp cified

4.2 Ge eral condition for te ting

4.2.1 Se ue c of te ts

The sequen e of tests is o tional u les otherwise sp cified in this stan ard The EUT s al

b caref ul y in pected for damage cre tin a p s ible hazard in the me nin of this stan ard,

after e c test The same sample ne d not b u ed for al tests u les otherwise sp cif ied in

this stan ard

4.2.2 Refere c te t conditions

4.2.2.1 Environme tal condition

Unles otherwise sp cified in this stan ard, for example with regard to en ironmental

category as def i ed in 6.1, the f ol owin ambient en ironmental con ition s al exist in the

test location:

a) temp rature of 15 °C to 4 °C;

c) an air pres ure of 7 kPa to 10 kPa;

d) no f rost, dew, p rcolatin water, rain, solar radiation, etc

4.2.2.2 State of e uipme t

The prod ct b in s bjected to typ tests s al b ph sical y an electrical y re resentative of

the f uture prod ction prod cts s c that the evaluation p r this stan ard adeq ately

re resent f uture prod ction u its

Unles otherwise sp cif ied, e c test s al b car ied out on the eq ipment as embled f or

normal u e an u der the le st favora le combination of the con ition given in 4.2.2.1 to

4.2.2.10 If it is impractical to car y out p rtic lar tests on a complete EUT, tests on

s b s embl es are al owed, provided it is verified that the as embled eq ipment wi me t the

req irements of this stan ard

4.2.2.3 Position of e uipme t

The eq ipment s al b in tal ed in ac ordan e with the man facturer’s in tru tion , in the

config ration that res lts in the worst-case test con ition Con ideration s al b given to

ef f ects of ventiation, bui din into a wal , reces , ca inet, etc in tal ation in close proximity

to stru tures, other eq ipment, etc

4.2.2.4 Ac e sorie

Ac es ories an o erator interc an e ble p rts avai a le f rom, or recommen ed by, the

man f acturer for u e with the EUT s al b either con ected or not con ected, whic ever is

le st f avora le

4.2.2.5 Cov rs a d remov ble parts

Covers or p rts, whic can b removed without u in a to l, s al b removed or not

removed, whic ever is le st f avora le

4.2.2.6 Mains s pply

Tests f or whic the outcome wi not b sig ificantly af f ected by the main s p ly con ition ,

may b car ied out at an rated s p ly con ition For tests for whic the outcome may b

sig if i antly aff ected by main s p ly con ition , the test s al b p r ormed at the

worst-case main s p ly con ition or con ition , takin into con ideration multiple rated con ition

an toleran es on rated con ition , as sp cif ied b low

a) Voltage: Toleran e s al b taken as 9 % to 1 0 % of the rated voltage(s), u les a

wider ran e is given in the sp cif i ation f or the EUT in whic case the wider ran e is

u ed If the EUT wi not o erate acros the ful 9 % to 1 0 % ran e, the toleran e is

taken as sp cified o eratin ran e Testin u der nominal s pply con ition , or at

s p ly con ition b twe n the en s of the ran es, is only neces ary if testin at the

en s of the ran es is not worst-case

b) Freq en y: Multiple rated feq en ies are to b taken into ac ou t (e.g 5 Hz vers s

6 Hz), but toleran es arou d these f eq en ies do not normaly ne d to b

con idered

c) Polarity: F r plu ga le eq ipment typ A, con ideration is to b given to con ection in

b th normal an reverse p larity con ition , if the outcome of a p rtic lar test could b

aff ected

d) Earthin : The test s p ly s al b e rthed or not ac ordin to the inten ed s p ly

config ration for the eq ipment u der test For eq ipment that may b s p l ed f om

either an e rthed or u -e rthed s p ly s stem, the s p ly s stem u ed s al b that

whic provides a worst-case test con ition, or tests s al b done in b th

e) Over c r ent Protection: Inputs s al b provided with the over c r ent protection that

wi b present in the in tal ation, an this protection s al not o erate d rin an tests

in normal con ition , but is al owed to o erate to protect the s stem d rin tests in

sin le f ault con ition

4.2.2.7 Supply ports oth r tha the mains

Tests s al b p rormed at the le st f avora le combination of s pply con ition , within the

rated ran e(s) for e c s p ly p rt, con iderin voltage, f req en y, p larity, e rthin , an

an other normal con ition, where these con ideration could af fect the outcome of the test

Inputs s al b provided with the over c r ent protection that wi b present in the in tal ation,

an this protection s al not o erate d rin an tests in normal con ition , but is al owed to

o erate to protect the s stem d rin tests in sin le f ault con ition

For PV an b t ery inputs, the fol owin ad itional req irements a ply:

4.2.2.7.1 Photovoltaic s pply sourc s

Where the res lts of a test could b af fected by the voltage vers s c r ent c aracteristic of

the s p ly, the PV source u ed s al simulate the voltage vers s c r ent c aracteristic of the

largest PV ar ay f or whic the eq ipment is rated, with regard to o en circ it voltage (

VMA

P ) an s ort-circ it c r ent (Is PV)

Tests p rf ormed u der a normal or f ault con ition s al b tested with a source ca a le of

1,2 to 1,5 times the PCE rated maximum input c r ent (Is PV) for that input If provided, any

in lu ed or sp cified PCE overc r ent protective devices s al not b altered or c an ed

NOT Wh n s le tin te t c n itio s for th P s p ly, c n id ratio h s to b giv n to th c ara teristic of P

ara s: wh n ma imum v lta e is a aia le, th a aia le c re t is at a minimum, a d wh n ma imum c re t is

a aia le, th v lta e is at a minimum It is n t e p cte th t a y te t s o ld b ru with b th th P s urc

c re t a d v lta e at th ir ma imum v lu s

4.2.2.7.2 Bat ery inputs

Bat ery inputs may b s p l ed f rom either a d.c p wer s p ly or fom a b tery b n , ex e t

that f or f ault testin , where the mag itu e of the avai a le fault c r ent could af f ect the res lts

of the test, a b tery b n of the size normal y u ed with the prod ct s al b u ed

4.2.2.8 Con itions of loa ing for output ports

Tests s al b p r ormed u der the le st favora le lo din con ition , within the rated

ran e(s) for e c p rt, con iderin voltage, f req en y, p larity, e rthin , lo d c r ent an

typ , an an other normal con ition, where these con ideration could aff ect the outcome of

the test An a.c output p rt s al b lo ded with l ne r lo d(s) to o tain the maximum rated

output p wer or c r ent, whic ever is le st favourable A d.c output p rt (for example a

b tery c argin output or a d.c lo d p rt s al b lo ded with resistive lo d(s) to o tain the

maximum rated output p wer or c r ent, whic ever is le st favoura le For p rts inten ed f or

con ection to a b tery, a b tery s al b u ed in place of or in p ral el with the lo d, if the

test res lts could b af f ected

Unles otherwise sp cified in this stan ard, lo din con ition are to b maintained f or a

len th of time as f olows:

– f or contin ou o eration ratin s, u ti ste d con ition are esta l s ed, ex e t that f or a

test for whic the only source of p wer is the PV input, testin is lmited to 7 h at f ul

p wer ( o a proximate a sin le solar day);

– f or intermit ent o eration ratin s, c cl n u ti ste dy con ition are esta l s ed, u in the

rated "ON" an "OFF" p riod ;

4.2.2.9 Earthing termin ls

A protective con u tor terminal, if provided, s al b con ected to e rth A f un tional e rth

terminal s al b con ected or not con ected to e rth, whic ever is le st favoura le

4.2.2.10 Controls

Controls whic the o erator can adju t s al b set to an p sition ex e t that

a) main selection devices s al b set to the cor ect value u les otherwise noted in this

stan ard;

b) combination of set in s s al not b made if they are prohibited by the man facturer’s

in tru tion provided with the eq ipment

4.2.2.1 Av i able s ort circ it c r e t

Where the res lts of a test could b afected, the s ort circ it c r ent sourcin ca a i ty of

the source u ed d rin testin s al b taken into con ideration Where hig avai a le s ort

circ it c r ent is con idered to b the worst-case test con ition, the ca a i ty of the source

s al not b les than the maximum s ort-circ it c r ent the PCE is rated for

NOT For s me te ts, le s th n ma imum s ort circ it c re t ma b worst-c s , if, for e ample, it re ults in

lo g r te t d ratio

4.3 Th rmal te ting

4.3.1 Ge eral

This s bclau e sp cifies req irements inten ed to prevent hazard d e to:

– tou ha le p rts ex e din saf e temp ratures; an

– comp nents, p rts, in ulation an plastic materials ex e din temp ratures whic may

degrade safety- elated electrical, mec anical, or other pro erties d rin normal u e over

the exp cted l fe of the eq ipment; an

– stru tures an mou tin s rf aces ex e din temp ratures whic may degrade the

materials over the exp cted l fe of the eq ipment

4.3.2 Ma imum temperature

4.3.2.1 Ge eral

Materials an comp nents s al b selected so that u der the most severe rated o eratin

con ition , the temp ratures do not ex e d the temp rature lmits b low

Compl an e is verif ied by me s rin temp ratures u der the con ition given in 4.2 for e c

rated o eratin con ition or mode of the PCE that could aff ect the res ltin temp ratures

The temp rature l mits sp cified b low are total temp rature l mits (not temp rature rise

lmits)

Tests of eq ipment rated for u e in ambient temp ratures up to 5 °C may b con u ted at

an ambient temp rature in the ran e given in 4.2.2.1, in whic case the dif f eren e b twe n

the maximum rated ambient temp rature an the actual test ambient is to b s btracted fom

or ad ed to (as a pro riate) the me s red temp ratures f or comp rison to the l mits sp cif ied

b low

PCE rated f or u e in ambient temp ratures more than 5 °C s al b tested at the maximum

rated ambient temp rature ± 5 °C The dif feren e b twe n the maximum rated ambient

temp rature an the test ambient is to b s btracted f rom or ad ed to (as a pro riate) the

PCE with dif ferent output ratin s or with automatic deratin f or diff erent ambient temp ratures

s al b tested u der as man con ition as are neces ary to record worst-case

temp ratures, in lu in at le st the maximum ambient b fore deratin , an the maximum

ambient with deratin

Durin thermal testin within normal con ition protective devices other than automatic output

deratin s stems s al not o erate

Temp ratures are to b me s red by thermocouples, ex e t that f or tran f ormers, in u tors,

an other coi s the c an e of resistan e method may b u ed

Temp ratures determined by the rise-of resistan e method s al u e the formula

T = R2/R1 ( k + t1 ) – ( k + t 2 )

where

T is the temp rature rise in °C

R1 is the resistan e of the coi at the b gin in of the test

t1 is the ro m temp rature in °C at the b gin in of the test

R2 is the resistan e of the coi at the en of the test

t2 is the ro m temp rature in °C at the en of the test

k = 2 4,5 f or co p r

k = 2 5,0 f or alumin m

For other materials the cor ect value for the con tant “k ” s al b u ed

Limits:

– f or coi s an their in ulation s stems, the temp rature lmits in Ta le 1 a ply

– f or other comp nents the me s red temp ratures s al not ex e d the lower of:

– the lmits in the a pl ca le IEC comp nent stan ard

– the comp nent or material man facturer’s rated o eratin temp rature

– if neither of the a ove exists, temp rature l mits are given in Ta le 2

Table 1 – Total temperature l mits for tra sf ormers, ind ctors,

a d oth r coi s a d their in ulation s stems

Cla sof insulatio

(s e IEC 6 0 5)

Limits f or surfa e mo nted

thermoco ple me surements

°C

Limits f or re istanc meth d an

multiple embed ed thermoco ple

NOT Surf ac mo nte th rmo o ple are a s me to n t b lo ate o th h t-s ot, b t wi b

ty ic ly ata h d to th c re, c i a d in ulatio th t is a c s ible o a c mplete p rt Multiple

emb d e th rmo o ple , wh re th th rmo o ple are ata h d d rin win in of th p rt, are more

lk ly to re ord h t-s ot temp rature Th re ista c meth d giv s a a era e temp rature for th

s e if i win in wh s re ista c ris wa me s re

Table 2 – Total temperature l mits for materials a d comp ne ts where ma ufa turer’s

ratings an compone t sta dards do not e ist (s e 4.3.2.1)

Materials an comp nents Limit

°C

Ca a itors - ele trolytic ty e 6

Ca a itors - oth r th n ele trolytic ty e 9

Wirin termin ls f or e tern l c n e tio s

Th temp rature o s rv d o th termin ls a d at p ints within a termin l b x or wirin c mp n nt of a u it is a le

to e c e th v lu s s e ifie if th markin of 5.1.9 re uire wirin of a s ita ly hig temp rature ratin In this c s ,

me s re temp rature o th termin ls a d wirin c mp rtme t are lmite to th temp rature ratin of th wirin

re uire b th markin

4.3.2.2 Touc temperature

In order to l mit the tou h temp ratures of ac es ible p rts of PCE, the maximum temp rature

f or ac es ible p rts of the PCE s al b in complan e with Ta le 3

It is p rmited that ac es ible p rts that are req ired to get hot as p rt of their inten ed

f un tion (f or example he tsin s) may have temp ratures up to 10 °C, if the p rts are marked

with the hot s race markin of s mb l 14 of An ex C For prod cts only for u e in a closed

electrical o eratin are the 10 °C l mit do s not a ply

Table 3 – Total touc temperature l mits for a c s ible s rfa e

Us r o erate d vic s (k o s, h n le , switc e ,

dis la s, etc.) whic are c ntin o sly h ld in n rmal

u e

Us r o erate d vic s (k o s, h n le , switc e ,

dis la s, etc.) whic are h ld for s ort p rio s o ly in

4.3.2.3 Temperature l mits f or mou tin s rfa e

In order to protect against lon -term degradation of bui din materials, s r aces of the PCE

that wi b in contact with the mou tin s rf ace s al not ex e d a maximum total

temp rature of 9 °C

This l mit is in ad ition to the a pl ca le lmits in 4.3.2.1 an 4.3.2.2

Compl an e is c ec ed by the testin in 4.3.2.1 with the PCE mou ted ac ordin to the

man f acturer’s in tru tion , on a softwo d s rf ace

4.4 Te ting in single f ault condition

4.4.1 Ge eral

Testin in sin le f ault con ition is done to determine that no hazard res lt f rom re sona ly

exp cted f ault con ition that may arise in normal service or f rom re sona ly exp cted

mis se

Fault testin s al b done u les it can b con lu ively demon trated that no hazard could

arise f om a p rtic lar fault con ition, or u les alternative method of c ec in compl an e

are sp cif ied in this stan ard in place of ault testin

Compl an e is c ec ed by a plyin the criteria of 4.4.3 after e c of the tests sp cified in

4.4.4 u der the con ition sp cif ied in 4.4.2

4.4.2 Te t conditions a d d ration for te tin und r fa lt conditions

4.4.2.1 Ge eral

The eq ipment s al b o erated u der the combination of con ition in 4.2, whic is le st

f avoura le f or the p rtic lar fault test b in p r ormed

NOT Wh n c nfig rin s urc s f or fa lt te tin , c n id ratio s al b giv n to th fa t th t f or s me fa lt te ts,

a s urc lmite to le s th n th ma imum rate c re t or p wer of th t in ut of th P E ma b more s v re th n

if a ma imum rate c r e t s urc wa u e Te t d ratio ma b lo g r, a d h atin in th fa lt p th ma b

more s v re u d r lmite c n itio s For e ample o a P in ut, it ma b more s v re to te t with a simulate

ara lmite to le s th n Is P

Fault con ition are to b a pl ed only one at a time an s al b a pled in turn in an

may arise as a con eq en e f om an a pl ed f ault Se arate samples of the EUT may b u ed

f or e c se arate fault test a pl ed, or the same sample may b u ed f or man tests if

damage f rom previou fault tests has b en re aired or wi not af f ect the res lts of f urther

tests

4.4.2.2 Duration of te ts

The eq ipment s al b o erated u ti f urther c an e as a res lt of the a pl ed f ault is

u lkely, as determined by (f or example) o enin of a device that removes the in uen e of the

f ault, sta i zation of temp ratures, etc

If a non- eseta le, man al, or automatical y reset in protective device or circ it o erates in

s c a way as to inter upt or mitigate the fault con ition, the test d ration is as f ol ows:

– automatic reset devices or circ its: al ow the protection to c cle on an of u ti no

f urther c an e as a res lt of the a pl ed f ault is l kely, u ti the ultimate res lt is

o tained, or u ti temp ratures sta i ze;

– man al reset devices or circ its: thre c cles, with the device or circ it reset as so n

as p s ible after trippin ;

– non- eseta le devices or circ its: one c cle

4.4.3 Pa s/f ai criteria f or te tin un er fa lt conditions

4.4.3.1 Prote tion a ain t s oc hazard

Compl an e with req irements f or protection again t electric s oc is c ec ed d rin an

af ter the a pl cation of sin le faults as folows:

a) by makin me s rements to c ec that no ac es ible DVC-A circ its have b come

s oc -hazardou u in the ste d state l mits for DVC-A in

Ta le 6 an the s ort-term

l mits of 7.3.2.3, an that s c circ its remain se arated f rom l ve p rts at voltages

gre ter than DVC A with at least b sic in ulation Compl an e is c ec ed by the test of

7.5.2 (without humidity precon itionin ) f or b sic in ulation; an

b) by p rf ormin a dielectric stren th test as p r 7.5.2 (without h midity precon itionin )

in the fol owin cases:

i) on reinf orced or double In ulation, u in the test level for b sic in ulation, an

i ) on b sic in ulation in protective clas I eq ipment, u in the test level for b sic

in ulation, u les it can b determined that the f ault did not res lt in an damage to

the protective e rthin con u tor or terminal, or to protective b n in me n ; an

c) by in p ction to en ure a f use con ected b twe n the protective e rthin terminal an

the protective e rthin con u tor in the test setup has not o ened; the fu e s al b

rated 3 A non-time-delay (for eq ipment rated for u e on circ its protected by

overc r ent protection rated 3 A or les ) or 3 A to 3 A non-time-delay (f or

eq ipment rated for u e on circ its protected by overc r ent protection rated more than

3 A); the en los re is not to b contactin e rth in an other location d rin the

testin ; an

d) by in p ction of the en los re to en ure that no damage has res lted that al ows

ac es to p rts that are hazardou l ve

4.4.3.2 Prote tion a ain t the spre d of fire

Compl an e with req irements f or protection again t the spre d of f ire is c ec ed by placin

the eq ipment on white tis ue-p p r coverin a sof two d s race an coverin the eq ipment

with c e secloth or s rgical coton d rin the f ault testin As an alternative, the c e secloth

or s rgical coton may b placed only over the o enin s of large eq ipment

There s al b no emis ion of molten metal, burnin in ulation, or flamin or glowin p rticles

f rom the f ire en los re, an there s al b no c ar in , glowin , or flamin of the tis ue p p r

4.4.3.3 Prote tion a ainst other hazards

Compl an e with req irements f or protection again t other hazard after a plcation of the

f ault tests is c ec ed as sp cified elsewhere in this stan ard

4.4.3.4 Prote tion a ain t parts e pulsion hazards

Faiure of an comp nent within the PCE s al not rele se p rts outside the PCE en los re

with s f ficient energy to le d to a hazard, for example, expulsion of material into an are

oc upied by p rson el

4.4.4 Single f ault condition to be ap l e

4.4.4.1 Compone t fa lt te ts

Circ it analy is s al b p rf ormed to identify comp nents (in lu in in ulation s stems)

whose f aiure would res lt in a f ire or electric s oc hazard The analy is s al in lu e the

eff ect of s ort-circ it an o en-circ it con ition of the comp nent Based on the analy is,

f aults s al b a pl ed to relevant comp nents in a man er that simulates the man er in whic

f aults would oc ur in u e Comp nents ne d only b f aulted in a sin le mode (s ort-circ it or

o en-circ it , u les they do not have a predominant mode of fai ure

Faults s al b a pl ed u in a switc in device con ected to the terminals of the comp nent

or p rt u der test Con u tors u ed s al b as s ort as p s ible an of a cros -section

a proximately eq al to that of the comp nent le d , or eq al to the largest con u tor size

that is sp cified in the in tru tion to b u ed to con ect to the p rt The switc in device for

a s ort-circ it test s al b of adeq ate c r ent-car yin ca acity an low enou h imp dan e

(relative to the con u tors) to not sig ificantly l mit the c r ent f low

The PCE s al b o eratin b fore a pl cation of the fault, u les analy is s ows that startin

o eration with the fault alre dy a pl ed wi res lt in worst-case testin

NOT 1 In s me c s s b th te ts ma b re uire

The fol owin faults are simulated:

a) Short circ it or o en circ it of relevant comp nents

b) Short circ it or o en circ it of an comp nents or in ulation where f ai ure could

ad ersely af fect s p lementary in ulation or reinf orced in ulation

c) In ad ition, where req ired by Method 2 of 9.1.1, comp nents that could res lt in a f ire

hazard are to b overlo ded u les they comply with the req irements of 9.1.3

NOT 2 An o erlo d c n itio is a y c n itio b twe n n rmal lo d a d ma imum c re t c n itio u to s ort

circ it

NOT 3 Th c mp n nt fa lt te tin d e n t n e to in lu e c mp n nts f or whic e uiv le t te tin is

a c mpls e d rin oth r fa lt te ts, s c a o tp t s ort-circ it te ts

4.4.4.2 Equipme t or parts f or s ort term or intermit e t operation

Comp nents s c as motors, relay , other electromag etic devices an he ters, whic are

normal y o erated only intermitently, s al b o erated contin ou ly if contin ou o eration

could oc ur in a sin le f ault con ition

4.4.4.3 Motors

Motors s al b sto p d whi e ful y energized or prevented fom startin , whic ever is les