3.6/6kV~26/35kV Cross-Linked Polyethylene Insulated &
Flame Retarding Power Cable
Uses:
The product is suitable to be used for electrical distribution and supply of transmission line with power frequency rated voltage 3.6/6kV~26/35kV. And 900C is the allowable highest long-term operating temperature of cable conductor; the highest temperature of cable conductor can't be above 2500C when short circuit occurs.
Model Number and Product Name:
Type |
Model Number |
Product Name |
Flame Retarding Power Cable
|
ZRA-YJV
ZRB-YJV
ZR(C )-YJV |
Copper-Core Cross-Linked Polyethylene Insulated & PVC Sheathed Flame Retarding Power Cable |
ZRA-YJLV
ZRB-YJLV
ZR(C )-YJLV |
Aluminum-Core Cross-Linked Polyethylene Insulated & PVC Sheathed Flame Retarding Power Cable
|
ZRA-YJV22
ZRB-YJV22
ZR(C )-YJV22 |
Copper-Core Cross-Linked Polyethylene Insulated & Steel-Tape Armored & PVC Sheathed Flame Retarding Power Cable |
ZRA-YJLV22
ZRB-YJLV22
ZR(C )-YJLV22 |
Aluminum-Core Cross-Linked Polyethylene Insulated & Steel-Tape Armored & PVC Sheathed Flame Retarding Power Cable |
ZRA-YJV32
ZRB-YJV32
ZR(C )-YJV32 |
Copper-Core Cross-Linked Polyethylene Insulated & Thin Steel-Wire Armored & PVC Sheathed Flame Retarding Power Cable |
ZRA-YJLV32
ZRB-YJLV32
ZR(C )-YJLV32 |
Aluminum-Core Cross-Linked Polyethylene Insulated & Thin Steel-Wire Armored & PVC Sheathed Flame Retarding Power Cable |
Halogen-Free & Low-Fume Flame Retarding Power Cable |
WDZA-YJY
WDZA-YJLY |
Copper-Core (Aluminum-Core) Cross-Linked Polyethylene Insulated & Polyethylene Sheathed Halogen-Free & Low-Fume Flame Retarding Power Cable |
WDZB-YJY23
WDZB-YJLY23 |
Copper-Core (Aluminum-Core) Cross-Linked Polyethylene Insulated & Steel-Tape Armored & Polyethylene Sheathed Halogen-Free & Low-Fume Flame Retarding Power Cable |
WDZC-YJY33
WDZC-YJLY33 |
Copper-Core (Aluminum-Core) Cross-Linked Polyethylene Insulated & Thin Steel-Wire Armored & Polyethylene Sheathed Halogen-Free & Low-Fume Flame Retarding Power Cable |
Selection of Rated Voltage of Cable:
If the rated voltage of cable is appropriate with the operation-state of cable-linking system, “U0/U (Um)” are indicated, all of them are effective values with application unit “kV”.
U0– rated power frequency voltage between ground cable conductor and metal screening material;
U- rated power frequency voltage between conductors of cable;
Um- the biggest value of the highest system-voltage of working cable.
Three-phase system-used rated voltage of cable as follows:
U |
Um |
U0 |
Category-I Cable |
Category-II Cable |
3 |
3.6 |
1.8 |
3.6 |
6 |
7.2 |
3.6 |
6 |
10 |
12 |
6 |
8.7 |
15 |
17.5 |
8.7 |
12 |
20 |
24 |
12 |
18 |
35 |
42 |
21 |
26 |
Note: Category-I------ used for single-phase ground connection, and the fault time of system is not over 1min each time and the longest one not over 8 hours, the total fault occurring hours of the system not over 125 hours every year.
Category-II------used for the system with longer time of ground connection fault and also adopted for the places required for relative high insulation performance of cable.
Performance Characteristics:
DC resistance and insulation resistance of cable conductor is in conformity to the following list:
| Nominal Cross Section mm2 |
200C DC ResistanceΩ/km ≤ |
Copper |
Aluminum |
25 |
0.727 |
1.20 |
35 |
0.524 |
0.868 |
50 |
0.387 |
0.641 |
70 |
0.263 |
0.443 |
95 |
0.193 |
0.320 |
120 |
0.153 |
0.253 |
150 |
0.124 |
0.206 |
185 |
0.0991 |
0.164 |
240 |
0.0754 |
0.125 |
300 |
0.0601 |
0.100 |
400 |
0.0470 |
0.778 |
500 |
0.0366 |
0.0603 |
630 |
0.0283 |
0.0469 |
800 |
0.0221 |
0.0367 |
The self-discharge test with power frequency voltage of finished cable is in conformity to the following list:
No |
Item for Test |
Rated Voltage kV for Cable |
3.6/6 |
6/6
6/10 |
8.7/10
8.7/15 |
12/20 |
18/20
18/30 |
21/35 |
26/35 |
1 |
AC Voltage of Power Frequency?? kV/5min |
12.5 |
21 |
30.5 |
42 |
63 |
73.5
(53)* |
91
(65)* |
2 |
AC Voltage Test kV of Power Frequency for 4 Fours |
14.4 |
24 |
35 |
48 |
72 |
84 |
104 |
3 |
Shock Voltage Test?? kV |
60 |
75 |
95 |
125 |
170 |
200 |
250 |
4 |
Self-Discharge Test
Biggest Self-Discharge Quantity pC under 1.73 U0 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
*21/35kV and 26/35kV power frequency voltage test for cable can be made following the 2.5 U0 x 30min or 3.5 U0 x 15 min according to the requirements of users. |
The flame retarding performance should be in conformity to the requirements of Category-A, B and C specified in the Standard of GB/T18380.3-2001 (same effect as IEC60331).
The halogen-free performance should be in conformity to the requirements specified in the Standard GB/T17650-1998 (same effect as IEC60754).
The low-fume performance should be in conformity to the requirements specified in the Standard of GB/T17651-1998 (same effect as IEC601034). |