Technical Documents of 76/132KV XLPE Cable Porcelain Outdoor Termination
YJZWC4-76/132KV XLPE Cable Porcelain Outdoor Termination
1.Scope
YJZWC4 XLPE cable porcelain outdoor termination is satisfied with the requirements of IEC60840, GB11017. The conductor connection hardware is complied with GB14315. The pre-mould stress cone is made of EPDM, fill with silicone oil in the inner insulation, and good performance of sealing.
2. Technical Data
2.1 Rated voltage and frequency: 76 / 132kV, 50Hz, ,
2.2 Max. working voltage: 145kV,
2.3 Suitable cable section: 185~1600mm2;
2.4 Environment and condition
2.4.1 environment temperature: -50~+50°C,,
2.4.2 Max. wind speed: 35m/s,
2.4.3 earthquake strength: < 8o,
2.4.4 pollution grade: IV grade
2.5 Creeping distance of porcelain bushing: �?500mm,
2.6 flexural strength of the porcelain: 2500kg,
2.7 Long term current capacity, short-circuit current is not less than current of the fitted cable
2.8 The method of Neutral point ground: directly ground
2.9 Basic impulse insulation level(BIL�? 650 kV,
2.10 Contact pin and cable conductor for termination: crimping
2.11 Wiping sleeve of the termination: earthing lug
2.12 Allow Max. short-circuit current 1s: 40kA.
3. Guarantee of YJZWC4-76/132kV XLPE Cable Porcelain Outdoor Termination
No. |
Description |
Unit |
Guarantee |
1 |
manufacturer |
|
CS China |
2 |
Type |
|
YJZWC4 |
3 |
Produce standard |
|
GB11017, IEC60840 |
4 |
Rated voltage(U0/U�?/DIV> |
kV |
76 / 132 |
5 |
Max. working voltage(Um�?/DIV> |
kV |
145 |
6 |
Basic impulse level(BIL�?/DIV> |
kV |
650 |
7 |
Frequency |
HZ |
50 |
8 |
Max. Rated temp. of the conductor
a. At the normat run
b. Transient state (short-circuit current sustaining time is not less than 5s) |
°C
°C |
90
250 |
9 |
Sea level |
m |
< 2000 |
10 |
Environment temperature |
|
�?0 Celsius Degree ~+50 Celsius Degree |
11 |
Cable section |
|
185�?600mm2 |
12 |
Bushing material |
|
High strength porcelain |
13 |
Creeping distance of the bushing |
mm |
�?500 |
14 |
Material of stress cone |
|
EPDM |
15 |
Insulation filler in the bushing
a. material
b. dielectric coefficient
c. volume resistivity |
W×m |
Silicone oil
50Hz: 2.76
1´1013 |
16 |
Diameter of contact pin |
mm |
f28�?85~400mm 2�?/DIV>
f45�?00~800mm 2�?/DIV>
f50�?000~1600mm2�?/DIV> |
17 |
Termination weight |
kg |
220 |
18 |
height |
mm |
2150 |
19 |
Electrical connection between the wiping sleeve and metal sheath |
|
weld |
20 |
Seal method of wiping sleeve |
|
“○”ring |
21 |
Metal screen layer of the termination
a. Material
b. Specification, Qty.
c. Allow max. Short-circuit current (1s) |
|
Copper braid tape
35mm2 ,4pieces
40 kA |
22 |
The main test:
a. power frequency voltage test 1 min
b. partial discharge at room temperature
c. load cycling test at constant-voltage
(20 periods)
d. partial discharge at high temperature
e. impulse voltage test
f. power frequency voltage test 30min
g. power frequency voltage test 4h |
kV |
a. 228(wet state�?/DIV>
b. 114(1.5U0) �?pC
c. 152 (heat cable conductor 95-100 Celsius Degree , heat8h/cool 16h, keep at least 2h/ cool at least 16)
d. 114(1.5U0) �?pC
e. 650 (±each 10times)
f. 190(2.5U0)
g. 228(3U0) |
23 |
Cable insulation is more than the dimension of stress relief cone ID |
mm |
2�? |
24 |
Design service life |
year |
�?5 |
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4. YJZWC4-76/132kV XLPE Cable Porcelain Outdoor Termination
5. Installation Drawing of YJZWC4-76/132Kvxlpe Cable Porcelain Outdoor Termination
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