Iec 60836 2015

IEC 60836 Edition 3 0 201 5 07 INTERNATIONAL STANDARD NORME INTERNATIONALE Specifications for unused sil icone insulating l iquids for electrotechnical purposes Spécifications pour liquides isolants s[.]

Spécificat ions pour l quides isolant s si icones neufs pour usages

élect rot echniques

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FOREWORD 3

1 Sco e 5

2 Normative referen es 5

3 Terms an def i ition 6

4 Pro erties 6

4.1 General pro erties 6

4 2 Pro erties relatin to he lth, saf ety an en ironment (HSE)

7 4.2.1 Han l n 7

4.2.2 Disp sal 7

5 General del very req irements an identification 7

6 Storage an maintenan e

7 7 Samplng 7

8 Pro erties an test method 8

8.1 Colour an a p aran e 8

8.1.1 Colour 8

8.1.2 Ap e ran e 8

8.2 Den ity 8

8.3 Kinematic vis osity 8

8.4 Flas p int 8

8.5 Fire p int 8

8.6 Ref ractive in ex 8

8.7 Pour p int 8

8 8 Water content

8 8.9 Acidity 8

8.10 Bre k own voltage 8

8.1 Dielectric dis ip tion factor, p rmit ivity, d.c resistivity 8

8.12 Gas in u der electrical stres an ionization 8

8.13 Flamma i ty 9

9 In ivid al sp cification 9

9.1 General 9

9.2 Si cone tran f ormer l q id 9

9.3 Other si cone lq id for electrotec nical purp ses 10 Biblogra h 1

Ta le 1 – Sp cification of si cone tran f ormer l q id 9

Ta le 2 – Minimum req irements for si cone l q id 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION

SPECIFICA TIONS FOR UNUSED SILICONE INSULA TING

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 f i ld 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 cif i atio s,

Te h ic l Re orts, Pu lcly Av ia le Sp cif i atio s (P S) a d Guid s (h re fter ref ere 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 f or 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 re omme d tio s for 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

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misinterpretatio b a y e d u er

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th later

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a s s me t s rvic s a d, in s me are s, a c s to IEC mark of c nf ormity IEC is n t re p n ible f or a y

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

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Pu lc tio s

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

The International Stan ard IEC 6 8 6 has b en pre ared by IEC tec nical commit e 10:

Fluid f or electrotec nical a pl cation

This third edition can els an re laces the secon edition publ s ed in 2 0 This edition

con titutes a tec nical revision

This edition in lu es the f ol owin major tec nical c an es with regard to the secon edition:

a) clas ification of l q id ac ordin to IEC 610 9 have b en ada ted with resp ct to the

The text of this standard is b sed on the fol owin doc ments:

Ful inf ormation on the votin f or the a proval of this stan ard can b foun in the re ort on

votin in icated in the a ove ta le

This publ cation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2

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 cific publ cation At this date, the publ cation wi b

• with rawn,

• re laced by a revised edition, or

SPECIFICA TIONS FOR UNUSED SILICONE INSULA TING

This International Stan ard covers sp cif i ation an test method for u u ed si cone l q id

inten ed f or u e in tran formers an other electrotec nical eq ipment

The sp cified c aracteristic of si cone tran f ormer l q id clas ified as L-NTUK-8 6 3 0 (in

ac ordan e with IEC 610 9) are des rib d in Ta le 1

Besides the stan ard tran former a pl cation there are other a pl cation of si cone lq id ,

s c l ke ca le ac es ories, cap citors, electrical mag ets etc The sp cified c aracteristic

an minimum req irements for these l q id are des rib d in Table 2

NOT Mainte a c of u e si c n lq id in ele trote h ic l e uipme t is c v re in a s p rate p blc tio

IEC 6 9 4

The f ol owin doc ments, in whole or in p rt, are normatively ref eren ed in this doc ment an

are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a pl es For

u dated referen es, the latest edition of the referen ed doc ment (in lu in an

amen ments) a pl es

IEC 6 15 :19 5, Insul ating liquids – Determination of th bre k d own v ltag at p wer

fe u n y – Test method

IEC 6 2 7, Insulatin l iquids – Measureme t of relat iv p rmit vity, d iele tric d is ip tion

fa tor (tan δ) a d d.c resistivity

IEC 6 2 6, Fluids for ele trot ec nic l a p c tions – U nused mineral insul atin o s for

tra sformers a d switch e r

IEC 6 4 5, Method of sampling insul at ing l i uids

IEC 6 6 8, Gas ing of insulatin liquids u der el ectric l stres a d io iz tion

IEC 6 814, Insul ating l iquids – Oil-impre n ted p p r a d pres b ard – Determin tio of

water b a t omatic c ulometric Karl Fisc er titration

IEC 6 9 4, Guid e for th mainten n e of sil ic n tra sformer l iquids

IEC 610 9:2 0 , Clas ificat ion of insulat in l iquid s

IEC 6 0 1-3, Insulating li uids – Determin t ion of a id ity – Part 3: Test methods for n

n-min ral insul at ing ois

ISO 2 1 , Liquid c emic l prod ucts – Measureme t of c lour in H az n u its (pl atinum-c b lt

sc le)

ISO 2 9 , Determin t io of fl ash a d fire p ints – Cl evela d o e c p met hod

ISO 2 19, Determin t io offl ash p int – P ensk Mart ens closed c p met hod

ISO 3 16, P etrol eum produ ts – Determin t ion of p ur p int

ISO 310 , Petroleum produ ts – Tra sp re t a d o a u li uids – Determinatio ofk in matic

visc sity a d c lc l at ion ofdyn mic visc sity

ISO 3 7 , Crude p trol eum a d li uid p troleum prod ucts – L b rat ory d etermin tion of

de sity – H ydromet er meth d

ISO 5 61, P etrol eum produ ts – H ydro arb n liquids – Determinat ion of refa t ive ind ex

ISO 1218 , Crud e p trol eum a d p trole m prod ucts – Determinat io ofde sity – Oscil latin

l q id organo oly i oxanes whose molec lar stru ture con ists mainly of lne r c ain of

alternatin si con an ox gen atoms, with h drocarb n groups at ac ed to the si con atoms

3.2

si cone tra sf ormer l q id

p ly imeth l sioxane, without ad itives, primari y f or u e in tran f ormers

Note 1 to e try: Ac ordin to IEC 610 9, this ty e is cla sifie a L-NTU -8 6 3 0

3.3

other si icone l quids for ele trote hnic l purpos s

p ly imeth l sioxane, without ad itives, a pl ed for electrotec nical purp ses

Note 1 to e try: Cla sific tio of oth r f l id f or ele trote h ic l p rp s s a c rdin to IEC 610 9 s al b ma e

in relatio to th ir main a plc tio a d th ir fire p int, e.g a lq id for c p citors with a f ire p int of le s th n

3 0 °C is cla sifie a L-N UO-8 6 3 0

As def i ed in 3.2, si cone l q id f or tran f ormers has hig flas an f ire p ints an is

theref ore diff i ult to ig ite If combu tion oc urs, he t rele se rate is mu h lower than that of

h drocarb n ois

In ad ition to u e at simi ar workin temp ratures to those of tran f ormers containin mineral

tran f ormer oi , si cone in ulatin l q id may also b u ed in a pro riately desig ed

electrotec nical eq ipment o eratin at hig er temp ratures

The solubi ty of water in si cone l q id is gre ter than in mineral ois Other phy ical

c aracteristic whic are imp rtant f or the desig of electrotec nical eq ipment, e.g he t

tran f er, may also b dif ferent f rom those of mineral tran former oi an wi ne d to b taken

f ul y into ac ou t by the desig er

4.2 Propertie relating to h alth, s f ety a d e vironme t (HSE)

Si cone l q id ultimately degrade in nature to simple, natural y oc ur in s bstan es Their

han l n is not hazardou to he lth

Direct contact with the eyes may cau e sl g t ir itation Safety glas es s ould b worn to

avoid splas in the eyes In the case of eye contact, ir igation with large q antities of cle n

ru nin water s ould rel eve an ir itation If ir itation p rsists, se k medical ad ice

Detai ed information on saf e han l n of these l q id can b o tained f rom man facturers or

s p l ers

L cal reg lation s al b compl ed with The pref er ed me n of disp sal is rec cl n by a

q al f ied contractor Waste l q id may b in inerated Spi ages s ould b cle ned u in

ad orb nt media Smal q antities of l q id enterin the en ironment present no sp cial

hazard

5 General del v ry requirements and identif ication

Tran p rt of si cone in ulatin l q id s al b in cle n hermetical y se led containers whose

l nin do s not interact with the contents

Eac container s al display the folowin inf ormation:

– n mb r of this stan ard;

– s p ler’s desig ation;

– any notices req ired by local reg latory authorities

Electrotec nical eq ipment fi ed with si cone in ulatin lq id s ould b la el ed for

identification with resp ct to the in ulation u ed

Storage s ould prefera ly b in o rs an s al b in se led containers to prevent in res of

moisture an dirt If ac idental y contaminated by water an /or sol d p rticles d rin storage,

the l q id can u ual y b restored to ac e ta le q al ty by the proced res des rib d in

IEC 6 9 4

The l q id s al b sampled in ac ordan e with IEC 6 4 5, u in the proced re con istent

with the den ity of the l q id bein sampled Iso ro yl alcohol is s ita le f or cle nin the

sampl n eq ipment

8 Properties a d test methods

8.1.1 Colour

This pro erty s al b me s red ac ordin to ISO 2 1

This pro erty s al b evaluated by examinin a re resentative sample of a proximately

10 mm in thic nes , in tran mited l g t an at ambient temp rature

8.2 De sity

This pro erty s al b me s red at 2 °C ac ordin to ISO 3 7 but me s rement ac ordin

to ISO 1218 is ac e ted as wel

8.3 Kinematic vis osity

This pro erty s al b me s red at 4 °C ac ordin to ISO 310

This pro erty s al b me s red ac ordin to IEC 6 0 1-3

8.10 Bre k own volta e

This pro erty s al b me s red ac ordin to IEC 6 15 an with p rtic lar atention to

IEC 6 15 :19 5, 3.4.2

8.1 Diele tric dis ipation fa tor, permit ivity, d.c re istivity

These pro erties s al b determined at 9 °C by the method des rib d in IEC 6 2 7

Iso ro yl alcohol or acetone are s ita le f or cle nin the test cel

8.12 Ga sing un er ele tric l stre s a d ionization

This pro erty s al b me s red ac ordin to IEC 6 6 8

8.13 Flammabi ty

Fire hazard me s rement of in ulatin l q id is now stu ied by IEC tec nical commit e 8

9 Individual specif ications

The sp cification given in Ta le 1 an Ta le 2 a pl es only to u u ed si cone lq id

inten ed for u e in electrotec nical eq ipment, as received f rom the s p l er an b fore an

tre tment or introd ction into electrotec nical eq ipment The l q id sampled in ac ordan e

with Clau e 7 s al b tested in ac ordan e with the a pro riate test method given in

Clau e 8 The c aracteristic of the l q id when tested s al comply with the req irements

given in Ta le 1 an Ta le 2

9.2 Si icone tra sf ormer l quid

This l q id is p ly imeth l sioxane without ad itives, primari y f or u e in tran formers

Ac ordin to IEC 610 9, it is clas ified as L-NTUK-8 6 3 0

When tested in ac ordan e with the method sp cified in Clau e 8, the pro erties of si cone

tran f ormer l q id s al me t the req irements given in Ta le 1

Table 1 – Spe ific tion of si icone tra sf ormer l quid

9.3 Oth r si con l quids for ele trote h ic l purpos s

Other si cone l q id are avai a le an may b u ed f or electrotec nical purp ses These

l q id are p ly imeth l si oxanes without ad itives an may have either a hig er or a lower

vis osity than l q id as p r 9.2

When tested in ac ordan e with the method sp cif ied in Clau e 8, the pro erties of these

l q id s al me t the minimum req irements given in Ta le 2

Table 2 – Minimum re uireme ts f or si icone l quids

NOT For u tre te lq id, a re eiv d

a

Th minimum v lu of th fire p int s al b s le te a a f un tio of th targ t cla sific tio a c rdin to

IEC 610 9 If cla sific tio "cla s K" is re uire th f ire p int s al b a o e 3 0 °C; fluid with a fire p int of

le s th n or e u l to 3 0 °C s al b cla sifie "cla s O"; si c n lq id with a lower vis o ity e hibit a lower

f ire p int; s le tio s al b ma e with re p ct to lo al sta d rd a d minimum re uireme ts for th inte d d

a plc tio of th lq id; th minimum fla h p int of th c o e lq ids al b in a c rd n e with IEC 6 2 6

Bibl ogr aphy

IEC 6 0 6-14, Power tra sformers – Part 14: Liq id -immersed p wer tra sformers using

hig -temp rature insulation materials

IEC 6 6 5-1-4 , Fire h z rd testing – Part 1-4 : Guid an e for as es ing th fire h z rd of

ele trotec nic l prod ucts – Insul ating liquids

IEC TS 6 6 5-8-3, F ire h z rd testing – Part 8-3: H eat rel ease – He t rele se of insul ating

li uids used in electrote h ic l prod ucts

_