However, the thickness at any place may be less than the specified value provided that the difference does not exceed 0 J mm + 10% of the specified value.
Assembly of cores
In mufthcore cables the cores shall be cabled helically.
A tape may be applied over the cabled cores.
33 4 Inner covering
МйІйШ]
The corals) shaI be covered by an extruded inner covering.
There shall be no harmful interaction between its constituents and ths insulation and/or sheath.
Compliance with this requtroment shad be checked by the test specified in sub-clause 8.1.4 of HD 505.1.2«
3 3.4,2 Application
The extruded inner covering shall surround the core[&) and may in mufti-core cables penetrate the space between them, giving the assembly a practically circular shape. The extruded inner covering shaN not adhere to the cores.
334.3 Inner cove ri no thckness
The thickness of the inner covering shal comply with the specified values given in Table 3, column 4.
3.3.5 Non-meielic oversheath
3,35.1 Material
The sheath shall consist of an extruded halogen-free flame retarded compound applied around the covering, complying with the nonelectrical requirements given in Table IB.
3.3.5.2 AdqI cation
The sheath shall be extruded in a single layer.
The sheath shall not adhere to the inner covering. A separator consisting of a tape or a film may be placed under the sheath.
3.3. Б.З Sheath thickness
The sheath thickness shall comply with the specified values given in Table 3, column 6.
However, the thickness at any place may be less than the specified value provided that the difference does not exceed 0.1 mm * 15% of the specified value.
Compliance shall be checked by the test given In HD 21 Pan 2f subclause 1.10,
3.3.5.4 Additional requirements
The colour of the outer sheath shall be grey or any colour agreed upon.
3.4 Testa
Compliance with the requirements of sub-clause 3,3 shall be choked by inspection end by the tests specified In Table 1A, IB and 2.
4. Cables with concentric conductor
Not appbcabfeTable 1A - Requirements for the non-electrical test for crosslinked polyethylene {XLPEI and crois-liriked eiicone rubber IQ) insulation
|
1 |
2 |
3 |
* 1 |
В |
6 |
? |
|
Rtf. No |
Tear |
Unit |
Type of compound |
Test method described in |
||
|
Compound XLPf |
Slicone rutaw |
HO |
Clause |
|||
|
1 |
Tanel* toenaih iM etooMOcn |
|
|
|
|
|
|
|
taut |
|
|
|
|
|
|
1.1 |
Properties in the elate ев dstvered |
|
|
|
CC Б02 and 506.1.1 |
6,2 |
|
1ЛЛ |
Vmms to be «buried 1w me tonelle etfeogth: - median, mm |
H/nwn* |
13-6 |
6.0 |
|
|
|
1.1.2 |
VMM* to be oblened for toe elongation et break. - median, тіл |
% |
200 |
160 |
|
|
|
1.2 |
Piopemes altar ageing in air oven |
|
|
|
606.1.2 |
3 |
|
1.2.1 |
Ageing conditions - temperature - duretion of troatmoni |
flC h |
136 16« |
200 240 |
|
|
|
L2.2 |
Vataaa to be obtained for the tenrie strength: medtan - venebon f'L me*. |
H/mrrr* % |
2Б |
4 |
|
|
|
1.2.3 |
Vetaes to be obtained for the elongation st break: • moder * variation t’L max. |
% % |
25 |
120 |
|
|
|
1.2.4 |
Ageing with copper conductor - femgorotire - <kmllon of teat |
•c h |
1Б0 163/240 |
- |
IEC 602 |
|
|
|
Procedure and requirements according to IEC 602 теЫа Via for 0,6/1 kV cable* |
|
|
|
|
|
|
2 |
Teat of norvcontomtneton Cl J |
|
|
|
|
|
|
2.1 |
Ageing condftions: - temper stir a ■ dkMMion of treatment |
•c h |
100 164 |
100 iea |
606.1.2 |
a |
|
|
Vatu»* io be obtained |
|
Ae m reh not. 1.2.2 & 1,2.3 |
At in toh nos 1,2.2 & 1.2.3 |
|
|
( I Variation: difference between the median value after ageing end the median value without ageing, expressed as a percentage of the Utter
(1) If applicable
( ) Not applicableTable 1A (concluded}
|
1 |
2 |
3 |
4 |
5 |
6 |
I I |
|
Ref. No |
Test |
Um |
Type ol compcxjixi |
Teat method daoenbad is |
||
|
Compound XLFE |
Sificorw rubber |
Ю |
Cfo»e |
|||
|
3 |
Hut lai test |
|
|
|
606.2.1 |
9.1 |
|
3.1 |
Test conditions: - temperature |
•c |
200 |
260 |
|
|
|
|
- duration Ы treatment |
|
16 |
16 |
|
|
|
|
- mechanical stress |
|
0.2 |
0.2 |
|
|
|
3.2 |
Reauhe to he obtained - max. efonga^on tauter food |
% |
116 |
100 |
|
|
|
|
- max. perms item elongation |
% |
16 |
26 |
|
|
|
|
after cooling |
|
|
|
|
|
|
4 |
W<tx abaorotion teat |
|
|
|
606.1.3 |
9 |
|
4.1 |
Teat еолЛіюпв: ' temperature |
•c |
63 |
a |
|
|
|
|
’ ckireticn of tact |
dev* |
14 |
* |
|
|
|
4.2 |
Results lo be cblamed - max. vartacfon ol meet |
mgrem1 |
t |
|
|
|
|
Б |
Shrinkage tot ot knt<?n |
|
|
|
606.1.3 |
10 |
|
|
Test орпЛачюе; - tampacatixo |
*C |
130 |
|
|
|
|
|
- duration ol test |
h |
1 |
- |
|
|
|
Б.2 |
Results to be obtained max. perm ivsibfo shrinkage |
% |
4 |
- |
|
|
|
3 |
Bendma and mooot test st lew tompwetura |
|
|
|
606 |
2ЛІ.4 |
|
6.1 |
Bonding tau lor insulation at low temporal ur a |
|
|
|
|
|
|
|
temperature before ageing |
•c |
26 |
26 |
|
|
|
|
' temperature after ageing |
•c |
-16 |
■16 |
|
|
|
6,2 |
Result* to be oblomed |
|
Ho crock* |
No crack» |
|
|
|
e.a |
impact teat *t fow tampetoturo ' temperature |
*c |
♦16 |
16 |
|
|
|
6.4 |
Rasul (a to be obtained |
|
Ho crocks |
No crocks |
|
|
T
Variation:
able IB - Requirement» lor the non-electrical test for sheath|
1 |
2 |
3 |
4 |
> 1 |
• |
|
Ret No |
Teet |
Unit |
Type of compound |
Teel method deecribed In |
|
|
HFFRehealh |
HD |
Cleuoe |
|||
|
1 |
Tіншій tfryrth *M elonaorion tZlM |
|
|
|
|
|
1.1 |
Propertioe in ihe state ее defeated |
|
|
SOB. 1.1 |
»2 |
|
1,1.1 |
vsiue* w be oOiatnad tor me lenelle etrenglh: median. min |
N/mm1 |
'0 |
|
|
|
1.1*2 |
Value* to be obtaood ftw me akmgettan r break. ' medwt min |
4 |
180 |
|
|
|
V2 |
Properties «her wine in eir |
|
|
506 1.2 |
3 |
|
1.2.1 |
Ageing «ndhlono - lemperetbre dLration of treatment |
•c h |
100 lea |
|
|
|
1.2.2 |
Value* to ba obtained For the teniae acrength: ■ mwfan variation (X maw. |
N/mtn’ % |
a 26 |
|
|
|
123 |
Value* to bo obtained For the akangaban at treak: maden ' wiebon О, ПМЛ. |
* * |
100 26 |
|
|
|
2 |
TMt Pl ПОП-СРПІДҐРІПМЮЛ (11 |
|
|
|
|
|
2.1 |
Aowrig ciMtdUrane: - temperature - duration of treatment |
•c h |
100 163 |
606.1.2 |
8 |
|
2,2 3 |
Value* to bo obtained Hear shock test |
|
Де in ref. not. 1.2Л A 1.2 3 |
506.3.1 |
S ,1 1 |
|
3.1 |
Teet еегкМюпа: • temperature duration of treatment |
•C h |
130 1 |
|
|
|
3 2 |
Result* to be obtained |
|
No cracks |
|
8.1.4 I |
difference between the median value after ageing and the median value without agoing expressed as a percentage of the letter.
Table IB (concluded) 28
|
* ' 1 |
2 |
a |
4 |
» 1 |
a I |
|
Ref, Ito |
T«t |
Unt |
Type ot compound |
Тем method deecribod Ie |
|
|
rtfFR ehwlh |
HD |
CtauM |
|||
|
4 |
Ргмига IHI rthdi tvmoBriturt |
|
|
506. XI |
a. 2 |
|
4.1 |
Тем condition»: ■ fwxe exerted by blede |
|
|
606 3.1 |
B.X4 |
|
|
- temperature |
•c |
90 |
506.3,1 |
0,2.0 |
|
|
- thrMton or teti |
h |
|
|
|
|
4.2 |
Reeufte to be obtained,. теж. |
% |
БО |
|
|
|
S |
Bendina test ei naw teffioeranxe |
|
|
60& |
2.4.1.4 |
|
6.1 |
Bendina teet for eheeth at tow tempereture * tempetetu'e «Ftvr ер eng |
•c |
26 |
|
|
|
|
• temperature efter egetng |
•c |
-16 |
|
|
|
62 |
Reiuha io be obtained |
|
No Creek» |
|
|
|
e |
Imnael teet M low tempyMuro |
|
|
Б05.1Л |
4 |
|
|
- temoerafufe |
■c |
16 |
|
|
|
•-1 |
Reeuhe to be obteined |
|
No crock» |
|
|
