Iec Ts 60079-39-2015.Pdf

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Edition 1.0 2 15-0

Explosive atmosphere –

Part 3 : Intrinsical y safe sy stems with ele tronical y control e spark duration

2 Normativ refere c s 8

3 Definitio s 9

4 Power-i arc ite ture 10 5 Re uireme ts for Power-i d vic s 1

5.1 Ge eral 1

5.2 Power-i s urc 1

5.3 Power-i field d vic 13 5.4 Power-i wirin 14 5.5 Power-i terminator 15 5.6 Te t in trume ts for Power-i lo p c e k 15 5.7 Power-i ap l catio clas e 15 6 Sy tem re uireme ts 16 6.1 Sele tio of th p rmis ible Power- i c re t clas of th Power-i s urc 16 6.2 Verificatio of a Power-i s stem 17 7 As e sme t an te tin 19 7.1 Pro e ure to d fin safety-rele ant parameters 19 7.2 Ty e te t 2

7.3 Ro tin te t 2

8 Markin of Power-i d vic s 2

8.1 Ge eral 2

8.2 Example of markin 2

9 In tru tio s 21

An e A (n rmativ ) As e sme t of Power-i safety parameters 2

A.1 Ge eral 2

A.2 Power-i s e ific te t e uipme t 2

A.2.1 Power-i u iv rsal te t e uipme t 2

A.2.2 Power-i d mmy load 2

A.3 Determinatio of th safety-rele ant parameters for Power-i d vic s an Power-i wirin 2

A.3.1 Ge eral 2

A.3.2 Safety-rele ant parameters for th Power-i s urc 2

A.3.3 Safety-rele ant parameters for th Power-i field d vic s 31

A.3.4 Safety-rele ant parameters for Power-i wirin 3

A.3.5 Safety-rele ant parameters for th Power-i terminator 3

An e B (informativ ) Ex lanatio an d tais of th Power-i basic c n e t 3

B.1 Ph sical basic of an ig itio 3

B.2 Outp t c aracteristic of a Power-i s urc 3

B.3 Meas reme t an s ie tific re ults as basis for Power- i minimum ig itio valu s 41

B.3.1 Te t s tu s for th d terminatio of th ig itio pro abi ty 41

B.3.2 Re ult of th s ark ig itio te ts an th ir impleme tatio in T ble 3 4

An e C (informativ ) Example of Power-i d vic s an s stems 4

C.1 Power-i ap l catio for a s le oid valv 4

C.2 Example of a g n ral y d sig e Power-i s urc 4

C.3 Example of a Power-i field d vic 4

C.4 Example of a Power-i d mmy load 4

C.5 Example of a Power-i terminator 4

An e D (informativ ) Example of interc n e tio of Power-i d vic s in lu in Power-i wirin to a Power-i s stem 5

D.1 Sp cific aim an giv n valu s 5

D.2 Solutio e ample 5

Fig re 1 – Th simple t Power-i arc ite ture 10 Fig re 2 – Example of c mple Power-i c n e t arc ite ture 1

Fig re 3 – Eleme ts of a Power-i s urc with v ltag an c re t lmitatio 12 Fig re 4 – Example of a u iv rsal Power-i field d vic (basic stru ture) 14 Fig re 5 – Basic as e sme t pro e ure for a Power-i s stem 19 Fig re A.1 – Basic prin iple of th Power-i u iv rsal te t e uipme t 2

Fig re A.2 – Puls o tp t b twe n terminals 3 an 1 of Fig re A.1 2

Fig re A.3 – Basic prin iple of a Power-i d mmy load 2

Fig re A.4 – Basic prin iple of th e uipme t for th d terminatio of th re p n e time t re p-s urc 2

Fig re A.5 – Example of an o ci o ram to d termin th re p n e time t re p-s urc 2

Fig re A.6 – Te t e uipme t for th d terminatio of th as e sme t factorAF s urc (basic prin iple) 2

Fig re A.7 – Te t e uipme t for th as e sme t factor te t for Power-i s urc 2

Fig re A.8 – Example of an o ci o ram from a te t of a Power-i s urc with an as e sme t factor AF = 8,2 for a break s ark 2

Fig re A.9 – Te t e uipme t for tran itio p ls te t of a Power-i s urc 3

Fig re A.10 – Te t e uipme t for th d terminatio of th as e sme t factor AF field d vic for Power-i field d vic s (basic prin iple) 3

Fig re A.1 – Te t e uipme t for th tran itio p ls te t of Power-i field d vic s 3

Fig re A.12 – Evaluatio parameter of te t p ls U p ls for tran itio p ls te t 3

Fig re A.13 – Te t e uipme t for th d terminatio of th re p n e time of th Powe r-i tru k t re p- ru k (basic prin iple) 3

Fig re B.1 – Example of a ty ical trac of a break s ark s p l e with a ln arly l mite s urc 3

Fig re B.2 – Example of a ty ical trac of a break s ark lmite b a Power-i s urc 3

Fig re B.3 – Example of o tp t s t of c aracteristic c rv s of a Power-i s urc d rin load c n e tio 4

Fig re B.4 – Basic prin iple of a Power-i p wer s urc for th v ltag thre h ld return mo e 41

Fig re B.5 – Example of o tp t s t of c aracteristic c rv s of a Power-i s urc in th cas of a faiure 41

Fig re B.6 – Te t s tu with STA for break s ark 4

Fig re B.7 – Te t s tu with STA for mak s ark 4

Fig re B.8 – Power-i ig itio valu s for v ltag clas 2 V (2 VDC) 4

Fig re B.10 – Power-i ig itio valu s for v ltag clas 4 V (4 VDC) 4

Fig re B.1 – Ig itio e erg in relatio to th u e h dro e p rc ntag in th gas mixture 4

Fig re C.1 – Simple s le oid valv Power-i ap l catio (e ample) 4

Fig re C.2 – Example of a g n raly style Power-i field d vic 4

Fig re C.3 – Example of a V-lmitatio u it (le el of prote tio “ib” 4

Fig re C.4 – Example of a Power-i d mmy load 4

Fig re C.5 – Example of a Power-i terminator 4

T ble 1 – Definitio of Power-i v ltag clas e 16 T ble 2 – Definitio of Power-i c re t clas e 16 T ble 3 – Permite c mbinatio s of Power-i ap lcatio clas e for Power-i s urc s as a fu ctio of th s stem re p n e time for al Gro p (n.a = n t alowe ) 17 T ble 4 – Power-i c r e t clas e of Power-i field d vic s or Power-i terminators matc in th c r e t clas of th Power-i s urc 18 T ble 5 – Rele an e for Power-i te t pro e ure 2

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IEC TS 6 0 9-3 , whic is a te h ical s e ificatio , has b e pre are b s b ommite

31G: Intrin icaly safe ap aratu , of IEC te h ical c mmite 31: Eq ipme t for e plo iv

atmo p ere

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th re ort o v tin in icate in th ab v table

This p bl catio has b e drafe in ac ordan e with th ISO/IEC Dire tiv s, Part 2

A lst of al parts in th IEC 6 0 9 s rie , p bls e u d r th g n ral title Ex losive

atmosp heres, can b fo n o th IEC we site

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• re lac d b a re is d e itio , or

• ame d d

A bi n ual v rsio of this p bl catio may b is u d at a later date

IMPORTANT – The 'c lour in id ' log on the c v r pag of this p bl catio in icate

that it c ntain c lo rs whic are c nsid re to b u eful for the c r e t

u derstan in of its c nte ts Us rs s o ld th refore print this do ume t u in a

c lo r printer

This part of IEC 6 0 9, whic is a Te h ical Sp cificatio , is b in is u d as a “pro p ctiv

stan ard for pro isio al ap l catio ” in th field of Ex losive Atmosp heres – Intrinsic ly safe

systems with ele ctro ic ly c ntroled sp ark duratio lmitatio b cau e th re is an urg nt

n e for g idan e o h w stan ard in this field s o ld b u e to me t an id ntifie n e

Intrin icaly safe s stems with ele tro icaly c ntrole s ark d ratio can pro id more p wer

avaiable in intrin icaly safe circ its whi e maintainin th le el of prote tio “ib” or “ic” In

ad itio to lmitin th v ltag an c re t (simiar to c n e tio al intrin icaly safe circ its),

th d ratio of th s ark is lmite , whic als re tricts th amo nt of e erg avai able for

This te h olo y, h we er, re uire a n w an more e te siv ap roac of th ty e of

prote tio Intrin ic Safety “i”

EXPLOSIVE ATMOSPHERES –

Part 39: Intrinsical y safe systems with electronical y

control ed spark duration l mitation

1 Scope

This Te h ical Sp cificatio s e ifie th c n tru tio , te tin , in talatio an mainte an e

of Power-i ap aratu an s stems whic uti s ele tro ical y c ntrole s ark d ratio

lmitatio to maintain an ad q ate le el of intrin ic safety

This Te h ical Sp cificatio c ntain re uireme ts for intrin ical y safe ap aratu an wirin

inte d d for u e in e plo iv atmo p ere an for as o iate ap aratu inte d d for

c n e tio to intrin icaly safe circ its e terin s c atmo p ere

This Te h ical Sp cificatio e clu e th le el of prote tio “ia” an th u e of s fware

-c ntrole circ its

This Te h ical Sp cificatio ap l e to ele trical e uipme t uti sin v ltag s n t hig er than

4 V d.c an a safety factor 1,5 for Gro p I B, I A, I an I It is als ap lcable to Gro p I C

“ic” ap aratu with a safety factor 1,0 Gro p I C “ib” ap aratu with a safety factor 1,5 are

re tricte to v ltag s u to 3 V d.c

This ty e of prote tio is ap lcable to ele trical e uipme t in whic th ele trical circ its

th ms lv s are in apable of cau in an e plo io of th s r o n in e plo iv atmo p ere

This Te h ical Sp cificatio is ap l cable to intrin ical y safe ap aratu an s stems whic

uti s ele tro icaly c ntrole s ark d ratio lmitatio with th aim of pro idin more

ele trical p wer whi e maintainin an ad q ate le el of safety

This Te h ical Sp cificatio is als ap l cable to ele trical e uipme t or parts of ele trical

e uipme t lo ate o tsid hazard u areas or prote te b an th r ty e of prote tio l ste

in th IEC 6 0 9 s rie , wh re th intrin ic safety of th ele trical circ its in e plo iv

atmo p ere d p n s o th d sig an c n tru tio of s c ele trical e uipme t or parts of

s c ele trical e uipme t Th ele trical circ its lo ate in th hazard u area are e aluate

for u e in s c lo atio s b ap lyin this Te h ical Sp cificatio

This Te h ical Sp cificatio s p leme ts an mo ifie th re uireme ts of IEC 6 0 9-0,

IEC 6 0 9-1 , IEC 6 0 9-14, IEC 6 0 9-17 an IEC 6 0 9-2

2 Normativ refere ces

Th folowin d c me ts, in wh le or in part, are n rmativ ly refere c d in this d c me t an

are in is e sable for its ap lcatio For date refere c s, o ly th e itio cite ap l e For

ame dme ts) ap le

IEC 6 0 9-0, Ex losive atmosp heres – Part 0 : Equipme nt – G en ral requ irem ents

IEC 6 0 9-1 , Ex losive atmosp e re s – Part 1 : Equipme t p rote ctio b y intrinsic safety "i"

IEC 6 0 9-14, Ex losive atmosp heres – Part 14: Ele tric l instalatio s design, se le tio a d

IEC 6 0 9-2 , Ex losive atmosp heres – Part 2 : ntrinsic ly safe ele tric l systems

3 Definitions

For th p rp s of this d c me t, th terms an d finitio s giv n in IEC 6 0 9-0 an

IEC 6 0 9-1 , as wel as th fol owin ap ly

3.1

Power-i

intrin icaly safe c n e t wh re th le el of prote tio is pro id d b v ltag an c re t

lmitatio an ad itio al ele tro ical y c ntrol e s ark d ratio l mitatio

Note 1 to e try: Power-i co tains Power-i d vices a d Power-i wirin

Note 2 to e try: Power-i e comp s es electric circ its which in th Power-i mo e o erate with v lta e a d

u it to pre e t refle tio s of v ltag an c r e t wav s at th e d of th Power-i wirin

Note 1 to e try: Th Power-i termin tor is o ly rele a t wh re d ta tra smis io u es th Power-i wirin

3.4

Power-i s urc

p wer s p ly for Power-i d vic s pro idin s utd wn of p wer in cas of faults

Note 1 to e try: Op ratin in two mo es: Power-imo e a d shutd wn mo e

3.5

Power-i field d vic

d vic that is c n e te to o e Power-i s urc via Power-i wirin

Note 1 to e try: Power-i field d vices ca h v a ditio al co n ctio s to oth r d vices(e.g lo ds)

3.6

Power-i mo e

o eratin mo e of th Power-i s urc d l v rin th rate Power-i o tp t p wer

Note 1 to e try: In this mo e th v lues of p rmite v lta e a d c re t ca ex e d th v lues of c rv s a d

informatio re ultin from a s ark e e t in th Power-i s stem

Note 1 to e try: A distinctio is ma e b twe n th ma e sp rk pulse a d th bre k sp rk pulse

mo e (o ly rele ant for th Power-i s urc )

time b twe n th o c r e c of a s ark an th re u tio of th s ark p wer to safe

o eratio in th s utd wn mo e in a Power-i s stem

3.10

as e sme t factor AF

factor of ate uatio or s n itivity of Power-i d vic s an Power-i wirin

Note 1 to e try: Th as es me t factor h sto b distin uish d b twe n:

– As es me t factor for Power-i field d vices, for th Power-i termin tor a d for Power-i wirin : In th se cases

th as es me t factor is a p rameter for th ate uatio of a sp rk pulse

– As es me t factor for th Power-i source: In this case th as es me t factor is a p rameter d finin th

se sitivity for th d tectio of a sp rk pulse

Note 2 to e try: Th as es me t factor sh uld b expres e in lo arithmic units

4 Power-i architecture

In a Power-i s stem o ly o e activ Power-i s urc s al b c n e te via Power-i wirin to

s p ly o e or s v ral Power-i field d vic s Th simple t stru ture c n ists of o e activ

Power-i s urc , Power-i wirin an o e Power-i field d vic (s e Fig re 1)

p rmite

Fig re 1 – The simple t Power-i arc ite ture

A Power-i s stem may b e te d d to a c mple s stem as s own in Fig re 2

IEC

Figure 2 – Example of c mple Power-i c nc pt arc ite ture

NOT Th Power-i field d vice Sn is id ntical to Power-i field d vice S1, S2-1 or S2-2 in terms of th co n ctio

to Power-i wirin but is sh wn with a ditio al outputin ut termin ls Th se termin ls are s bject to re uireme ts

of a typ of protectio pres rib d byth IEC 6 0 9 seriess ita le for th a plcatio s

5 Re uireme ts for Power-i devices

Power-i has to b c n id re as a s stem Th refore th folowin re uireme ts for al

Power-i d vic s ap ly:

c n itio s (e.g s f start – n ith r b th Power-i wirin n r b th Power-i d vic s;

th refore Power-i re uire th c n id ratio of th wh le s stem

b) Al Power-i d vic s an th Power-i wirin s al b as e s d an te te in ac ordan e

with An e A

c) Al Power-i d vic s s al b clas ifie in ac ordan e with 5.7

IEC 6 0 9-2 as ap lcable in ad itio to oth r IEC 6 0 9 stan ard (e.g IEC 6 0 9-7,

IEC 6 0 9-18 if ap lcable)

e) Th ap lcatio of th s re uireme ts s al ad itio al y tak into ac o nt an efe t in

timin an s n itivity of th safety fu ctio of th Power-i d vic s d e to temp rature

ef e ts an c mp n nt toleran e

f F ults d termin d to b th mo t o ero s (e.g for timin , s n itivity etc.) for th safety

fu ctio of Power-i d vic s s al b ap le to e uipme t for al te ts re uire b this

Te h ical Sp cificatio

5.2 Power-i s urc

Th re s al b o ly o e activ Power-i s urc p r Power-i s stem Th Power-i s urc s al

b plac d at o e e d of th Power-i wirin ( ru k)

ele trical circ it cau in a c r e t c an e +

��

��

o e in an ele trical circ it cau in a c re t c an e −

In al mo e of o eratio wh re th intrin icaly safe valu s bas d o c n e tio al p wer

lmitatio ac ordin to IEC 6 0 9-1 an IEC 6 0 9-2 are e c e e , th d te tio of c re t

as d fin d in A.3.2 Th s urc s al react with a s b e u nt tran itio from

Power-i mo e to s utd wn mo e

with th ap l cable safety factor for th ap ro riate Power-i v ltag clas ; in this cas th

fol owin e uatio ap le

IECO

so r ceO

5,0

d) Within 2 µs of th s ark disturban e informatio arivin at th Power-i s urc , th

o tp t c r e t of th Power-i s urc s al b e ual to or le s than 7 % of th I

O-IEC-valu

within th first 2 µs of th tran itio to s utd wn mo e a tran ie t o tp t c re t

I

hutd wn-2 µs

of 7 % of th I

O-IECvalu is alowe (s e Fig re A.5); in this cas th

fol owin e uatio ap le :

IECOsour ce

O

shutd w n

75,0

b more than 6 V for a maximum d ratio of

4 µs In this cas th fol owin e uatio ap le :

IEC

f Th Power-i s urc s al me t th re uireme ts of th te t pro e ure of A.3.2.

g) Th fol owin c mp n nts of th Power-i s urc (s e Fig re 3) are safety rele ant an

s al me t th re uireme ts of 5.1 a) an d) for th re p ctiv ty e of prote tio :

h) Th o tp t circ it of a Power-i s urc s al b is late from earth Th re uireme ts for

th is latio s al b tak n from IEC 6 0 9-1

5.3 Power-i field de ic

Power-i field d vic s c n ist of a d c u l n d vic an th actual load Power-i field d vic s

s al d c u le th load from th Power-i wirin

Th d sig of a Power-i field d vic s al e s re th d te tio of a s ark p ls in ac ordan e

with this Te h ical Sp cificatio

Power-i field d vic s s al me t th folowin safety-rele ant re uireme ts:

a) Th y s al e s re that b th, mak -s ark an break-s ark , are n t at e uate in an way

that th d te tio b th Power-i s urc is in al date

b) Un er n rmal or fault c n itio s as s e ifie in IEC 6 0 9-1 th p wer-i field d vic

s al remain pas iv , that is th terminals s al n t b a s urc of e erg to th s stem

e c pt for a leakag c r e t n t greater than 5 µA

Th c n id ratio of Li an Ci for Power-i field d vic s bas d o IEC 6 0 9-1 is n t

re uire This is tak n into ac o nt in th te t pro e ure d s rib d in A.3.3

c) Th y s al hav an ap ro riate ty e of prote tio in ac ordan e with IEC 6 0 9-0 for th

re p ctiv e plo iv atmo p ere in whic th y are u e

d) Th y s al hav safety-rele ant parameters d termin d in ac ordan e with A.3.3

NOT Due to p ralel co n ctio with Power-i wirin , th Power-i resp nse time for field d vices is

n glgible

e) Al c mp n nts d terminant for b th th as e sme t factor AF

field d vice

an th re ult of

th tran itio p ls te t (A.3.3.4) s al me t th re uireme ts of 5.1 a)

f Th in ut circ it of a Power-i field d vic s al b is late from earth Th re uireme ts

for th is latio from earth s al b tak n from IEC 6 0 9-1

As an e ample th Power-i field d vic s own in Fig re 4 c nforms to th re uireme ts

me tio e ab v an can b u e for a wid field of ap l catio s Th field d vic in Fig re 4

c n ists of a d c u ln d vic in c mbinatio with an arbitrary load

Th basic stru ture of th Power-i field d vic d picte in Fig re 4 s ows th eleme ts

n c s ary to e s re that b th mak an break s ark are n t ate uate in s c a way that

th d te tio b th Power-i s urc is in aldate

In Fig re 4 in u tan e L, capacitan e C, al dio e an th V-lmitatio u it are safety

rele ant an s al me t th re uireme ts of 5.1 for th ap ro riate ty e of prote tio

Figure 4 – Example of a u iv rsal Power-i field de ic (basic stru ture)

Th Power-i wirin s al me t th folowin re uireme ts:

a) Th tran mis io of a s ark p ls s al n t b impaire in a way that pre e ts th

d te tio of a rele ant mak or break s ark p ls ;

b) Al Power-i wirin (Power-i tru k cable in lu in al s ur cable ) s al me t th s e ific

d lay of th Power-i tru k cable u e ; th re uireme ts of T ble 3 s al ap ly;

NOT Th ca le p rameters a d th ca le le gth are safety-rele a t a d d termin th maximum resp nse

time or th Power-i trun (se A.3.4)

e) Th maximum le gth of eac s ur is lmite to 15 m Th maximum total le gth of al s urs

in th wh le Power-i s stem is 5 m;

f If th Power-i tru k cable le gth is le s than 4 m, th valu of re p n e time of this cable

is c n id re to b 0,5 µs (s e A.3.4.2);

in this cas th s ur le gth of eac s ur is lmite to 10 m an th total le gth of al s urs

in th wh le Power-i s stem is 2 m;

g) Th calc latio basis for c aracteristic cable imp dan e Z

W

in this Te h ical Sp cificatio

is Z = 10 Ω; th p rmite ran e of c aracteristic cable imp dan e Z

W for Power-i

i) Th u e of a s re n for Power-i wirin is n t e s ntial for safety; if a s re n is u e it may

b earth d as lo g as it is is late from th Power-i circ it in ac ordan e with th cable

diele tric stre gth re uireme ts of IEC 6 0 9-2 ;

j) Th Power-i wirin s al b is late from earth Th re uireme ts for th is latio from

earth s al b in ac ordan e with th cable diele tric stre gth re uireme ts of IEC 6 0 9

-2

5.5 Power-i terminator

Wh re u e , a Power-i terminator s al me t th folowin re uireme ts:

a) It s al hav safety-rele ant parameters d termin d ac ordin to A.3.5

b) Al c mp n nts of th Power-i terminator to pre e t fe din bac of th c re t from th

Power-i terminator into th Power-i wirin an al c mp n nts d terminant for th

d) Th in ut circ it of a Power-i terminator s al b is late from earth Th re uireme ts for

th is latio from earth s al b tak n from IEC 6 0 9-1

NOT 1 Th Power-i termin tor e s res a ac-matchin to th ch racteristic imp d nce of th co n cte trun

a d iso lyn ces aryin case of d ta tra smis io as for example in field u s stems

NOT 2 Due to p ralel co n ctio with Power-i wirin ,th Power-iresp nse time for termin tors isn glgible

An e ample of a Power-i terminator is s own in Fig re C.5

5.6 Te t in trume ts for Power-i loo c e k

Intrin icaly safe te t in trume ts in ac ordan e with IEC 6 0 9-1 may b c n e te dire tly

to Power-i wirin with ut furth r v rificatio of th Power-i s stem if th fol owin

Alternativ ly wh re te t in trume ts c mplyin with th re uireme ts for Power-i field d vic s

are u e , th y s al b in lu e in th v rificatio of a Power-i s stem ac ordin to 6.2

NOT Th se re uireme ts d n t a ply to test instrume ts u e by th ma ufacturer durin pro u tio , test,

re air or o erh ul

5.7 Power-i ap l catio clas e

Eac Power-i d vic s al b clas ifie into Power-i ap lcatio clas e ac ordin to T ble 1

an T ble 2

Th v ltag an c re t valu s of Table 1 an T ble 2 s al n t b e c e e takin into

ac o nt th ap lcable faults ac ordin to IEC 6 0 9-1

Power-i field d vic s an Power-i terminators pro id d with a safety-rele ant internal c re t

lmitatio can b as ig e to Power-i c r e t clas 2A5

With th internal c re t lmitatio it is n t n c s ary that th Power-i s urc lmits th c re t

to pre e t o erload of th Power-i field d vic or Power-i terminator an s it may b

c n e te e e to a Power-i s urc of c re t clas 2A5

6 Sy tem re uirements

6.1 Sele tion of th permis ible Power- i c r e t clas of th Power-i s urc

Th maximum p rmis ible Power-i c r e t clas giv n in 5.7 d p n s o th s le te Power-i

esp-s stem

takin into ac o nt th

Gro p an safety factor re uire for th s e ific ap lcatio

T ble 3 s ows th p rmite c mbinatio s for Gro p I I an I with th safety factors SF

1,0 an SF 1,5 d p n in o th re p ctiv le el of prote tio

Table 3 – Permit e c mbinatio s of Power-i ap l catio clas e for Power-i s urc s

IC “ic”

S 1,0

I B“ib”

S 1,5

NOT 1 Th alowe c re t clas es in Ta le 3 are b se o a maximum p s ible v lta e incre se

NOT 3 Th p rmite v lues for Groups IA, I a d I are th same as alowe for Group IB ic

Practical e ample of ap lcatio s of T ble 3 are s own in An e D

s e ifical y for th parameters in T ble 3 an th ab v -me tio e re uireme ts Th

interc n e tio c n itio s for vario s Power-i d vic s al ow intero erabi ty an plu -an -play

ap l catio s

NOT 4 Parameters b yo d th ra g s of Ta le 1, Ta le 2 or Ta le 3 re uire sp cial co sid ratio s a d are n t

co ere by this Tech ical Sp cificatio

6.2 Verification of a Power-i s stem

Th interc n e tio of al Power-i d vic s an th Power-i wirin u e in a Power-i s stem

s al fuly me t th fol owin re uireme ts:

NOT For Power-i d vices th informatio n ces ary for this v rificatio is state in th d c me tatio a d o in

th markin of e ch Power-id vice

a) Th Power-i v ltag clas of Power-i field d vic s an Power-i terminators s al b hig er

than or e ual to th Power-i v ltag clas of th Power-i s urc

b) Th Power-i c re t clas of al Power-i field d vic s an th Power-i terminators s al

matc th c r e t clas of th Power-i s urc ac ordin to T ble 4

Power-i fieldd vices a d Power-i termin tors

T ble 3 for th Power-i v ltag an c r e t clas of th Power-i s urc u e , takin into

ac o nt th Gro p an th safety factor of th s e ific ap lcatio

Determin th Power-i s stem re p n e time t

d) Th s m of th as e sme t factors (AF) of al Power-i field d vic s, Power-i wirin an

Power-i terminators in a Power-i s stem s al n t e c e th as e sme t factor of th

Power-i s urc u e Th as e sme t factors are d termin d in ac ordan e with A.3

Th fol owin ap le :

)(

2

d vicefield1

d vicefield

tr uni

p werter min tor

so r ce

++

++

AFAF

AF

Fig re 5 i u trate th as e sme t pro e s of a Power-i s stem Practical e ample are

Fig re 5 – Basic as e sme t pro e ure for a Power-i s stem

7 As es me t a d testing

7.1 Pro e ure to d fin safety-rele ant parameters

Th safety-rele ant parameters of Power-i d vic s an Power-i wirin s al b d termin d

an v rifie in ac ordan e with th folowin Power-i te t pro e ure Detai e informatio is

giv n in An e A

a) Determin th safety-rele ant maximum ele trical valu s (v ltag U an c re t I) as a

basis for th clas ificatio into th Power-i v ltag an c r e t clas e in ac ordan e with

c) Determin th Power-i-s e ific as e sme t factors (AF) of th Power-i s urc , th Power-i

field d vic (s) an – if ap lcable – th Power-i terminator ap lyin th te t meth d

s e ifie in A.3.2.3, A.3.3.3 an A.3.5.3

NOT 1 To as es th safety of a Power-i s stem, th s m of th as es me t factors AF of al Power-i

d vices includin Power-i wirin co tain d in th s stem isrele a t

d) Power-i field d vic s an Power-i s urc s s al me t th re uireme ts of th tran itio

T ble 5 s ows in d tai th rele ant Power-i te t pro e ure (a) to (e) for eac Power-i d vic

NOT 3 Th testin meth ds sp cifie in An ex A are b se o th a plcatio of d fin d test pulses Th re y

th alteratio of th test pulse by th Power-i d vices includin Power-i wirin wi b a aly e

This e a les th intero era i ty a d th plug-a d-play functio of difere t Power-i d vices from difere t

8 Marking of Power-i devices

Ex e t wh re mo ifie b this s ctio , eac ap aratu s al b mark d in ac ordan e with

IEC 6 0 9-0 an IEC 6 0 9-1 an ad itio al y with th word “Power-i” fol owe b an

in icatio of its fu ctio , i.e “s urc ”, “ ield d vic ” or “ erminator”

c n e tio al intrin icaly safe s stem, care s al b tak n to difere tiate b twe n th Power-i

markin an th markin for th c n e tio al intrin ical y safe s stem

For Power-i s urc s, o tp t parameters U

o, I

o, C

o, L

o, P

o

o/R

o

For Power-i field d vic s an Power-i terminators, in ut an internal parameters U

i, I

i, C

i, L

i,

P

i

i/R

i

n e n t b mark d In tead of th s parameters th fol owin s e ificatio s

s al b u e : Power-i v ltag an c r e t clas e , th s e ifie Power-i as e sme t factor

AF an , if ap lcable, th s e ifie Power-i re p n e time t

esp

8.2 Example of markin

Th folowin are e ample of markin

a) Power s p ly

Power-i s urc

In tru tio s re uire in Do ume tatio of IEC 6 0 9-1 s al ad itio aly c ntain th ty e of

d vic with p wer-i parameters:

• Power-i s urc : OUT, t

esp

• Power-i field d vic an Power-i terminator: IN an AF;

For Power-i s urc s, o tp t parameters U

o, I

o, C

o, L

o, P

o

o/R

o

n e n t b me tio e

For Power-i field d vic s an Power-i terminators, in ut an internal parameters U

i, I

i, C

i, L

i, P

i

i/R

i

Annex A

(normative)

Assessment of Power-i safety parameters

A.1 Ge eral

Th d terminatio an v rificatio of th safety-rele ant parameters for Power-i d vic s an

Power-i wirin are bas d o th Power-i s e ific te t pro e ure as d s rib d in 7.1 an in

this An e Th n c s ary as e sme t an te t pro e ure are s own in T ble 5

A.2 Power-i specific test equipme t

A.2.1 Power-i u iv rsal te t e uipme t

Fig re A.1 s ows th s h matic diagram of th Power-i u iv rsal te t e uipme t u e to

d termin th Power-i s e ific parameter an to c nfirm th Power-i s e ific b havio r

Compo e ts of th Power-i univ rsal te t e uipme t (Fig re A.1)

= 10 V ± 5 %; th ab olute valu of th ampltu e can b adju te to lower

valu s an has a d fin d refere c p ls d ratio of t

NOT To gle switch S1 p sitio A simulates a fault in th p ralel p th of th ca le In p sitio A, th test

a p ratu ate uates th a ple pulse g n ratin th lowest pulse ampltud

Ωµ

100

66660

CL

Z

• Low pas fi ter

Simple low pas RC fi ter

Us d for switc in to th p ls ampltu e meas reme t mo e (S2 p sitio “OF ”

NOT Th pulse with re u e ampltud is res ltin from re u in th ampltud of th sin le sh t pulse

g n rator in ord r to d termin th as es me t factor A of Power-i d vices(se Figure A.6 a d Figure A.10)

A.2.2 Power-i d mmy load

Th Power-i d mmy load s al e s re d fin d startin b havio r (s f start realzin a slow

c r e t ris This e able th s urc to o erate in Power-i mo e

Th d mmy load s al cau e minimum impairme t of th te t p ls of th u iv rsal te t

e uipme t (s e Fig re A.1)

Th prin iple of a Power-i d mmy load is s own in Fig re A.3 It c n ists of a s f start u it in

c mbinatio with a g rator to me t th aforeme tio e re uireme ts An e ample is s own in

IEC

IEC

Th as e sme t factor of th Power-i d mmy load is meas re in ac ordan e with A.3.3.3 In

this cas th Power-i field d vic s own in Fig re A.10 is re lac d with th Power-i d mmy

load To ac ompls a hig as e sme t factor of th Power-i s urc it is ad isable to u e a

d mmy load with a low as e sme t factor A practical e ample with a low as e sme t factor

This s ctio is bas d o th Power-i s e ific te tin pro e ure d s rib d in 7.1

A digital storag o ci o c p is n c s ary to meas re th re p n e time an th as e sme t

factor Th minimum c t of fre u n y of th digital storag o ci o c p s al n t b lower

than 5 MHz

A.3.2 Safety-rele ant parameters for th Power-i s urc

A.3.2.1 Determinatio of the safety-rele ant maximum valu s for Power-i s urc s

Th o tp t valu s of th Power-i s urc U

A.3.2.2 Determinatio of the re p ns time t

te t s al b p rforme with to gle S1 in p sitio B an switc S2 in p sitio “OF ”, (s e

Fig re A.1) Th te t s al b p rforme with an adju table Power-i d mmy load (s e A.2.2)

This load c n ists of a c mbinatio of a Power-i field d vic with a load adju te to ac ie e

maximum o tp t p wer

IEC

Th d terminatio of th as e sme t factor AF is p rforme with te t e uipme t as s own in

Fig re A.6 This te t s al b p rforme for s e ifie load c n itio s with an adju table

Power-i d mmy load (s e A.2.2) in ac ordan e with Fig re A.6 Th te t s al b p rforme

Fig re A.1)

NOT Th difere t lo d co ditio s ca o ly b p rforme u in lo ds with Power-i sp cific startup or switch-o

b h viour

IEC