1. The maximum rated temperature of the cable conductor is 90 °C, and the short-circuit time (maximum duration does not exceed 5S), the maximum temperature of the cable conductor does not exceed 250 °C.
2. The ambient temperature when laying the cable should not be lower than 0 °C
3. Allow bending radius when laying: single core cable is not less than 15 times the outer diameter of the cable; multi-core cable is not less than 10 times the outer diameter of the cable.

Fourth, model, name and conditions of use

Model name conditions

YJV YJLV copper (aluminum) core cross-linked PVC insulated and sheathed power cable is laid indoors, in the channel and tube, can also be buried in loose soil, can not withstand external forces, YJV22 YJLV22 copper (aluminum) core cross-linking PVC steel armored sheathed power cable is laid underground, can withstand mechanical external force, but can not withstand large tensile force YJV32 YJLV32 copper (aluminum) core XLPE insulated fine steel wire armored PVC sheathed power cable Suitable for high drop zones, cables can withstand mechanical forces and considerable pull

1. Product use: This product is suitable for power lines with rated voltage (U0/U) of 3.6/6 to 26/35KV for power transmission and distribution.

2, product standard: GB12706-91 rated voltage 35KV and below copper core, aluminum core plastic insulated power cable.

3, product use characteristics:

(1) When the cable is laid at an ambient temperature not lower than 0 °C, it is not necessary to pre-heat. The laying drop of the cable is not limited.
(2) The long-term allowable working temperature of the cable core shall not exceed the following requirements: the outer sheath is a PVC sheathed cable of 90 °C; the outer sheath is a polyethylene sheathed cable of 80 °C.
(3) When the core is short-circuited (maximum 5S), the temperature must not exceed 250 °C
(4) The minimum bending radius for cable laying is as follows: single core cable: 20 (d + D) ± 5%; three core cable: 15 (d + D) ± 5%. Where: D is the actual outer diameter of the cable and d is the actual outer diameter of the conductor.

4, product model, name and scope of use

Name	Scope of use
Name	Scope of use	Copper core	Aluminum core
YJV	YJLV	XLPE insulated PVC sheathed power cable	Fixedly laid in the air, indoors, cable trenches, tunnels or underground
YJY	JYLY	XLPE insulated PE sheathed power cable	Fixedly installed indoors, cable trenches, tunnels or underground
YJV22	YJLV22	XLPE insulated steel tape armored PVC sheathed power cable	Fixedly laid in places with external pressure
YJV23	YJLV23	XLPE insulated steel tape armored PE sheathed power cable	Fixedly laid in places where external force is often applied
YJV32	YJLV32	XLPE insulated fine steel wire armored PVC sheathed power cable	Fixedly laid in places where tensile force is required
YJV33	YJLV33	XLPE insulated fine steel wire armored PE sheathed power cable	Fixedly laid in places where tensile force is required
YJV42	JYLV42	XLPE insulated thick steel wire armored PVC sheathed power cable	Fixedly laid under water, shaft or where it is required to withstand tension
YJV43	YJLV43	XLPE insulated thick steel wire armored PE sheathed power cable	Fixedly laid in places where large tensile force is required

Note: One or two single-core cables are not allowed to be laid in iron pipes.

5. Production range

Model	Number of cores	Rated voltage U0/U KV
		3.6/6 6/6	6/10 8.7/10	12/20 18/20	21/35 26/35
		Conductor core nominal cross section (mm2)
YJLV YJV YJLY YJY	1	25-500	25-500	35-500	50-300
YJLV32 YJV32 YJLY32 JYY32	1	25-500	25-500	35-500	50-300
YJLV42 YJV42 YJLV43 YJV43	1	25-500	25-500	35-500	50-300
YJLV YJV YJLY YJY	3	25-300	25-300	35-300	-
YJLV22 YJV22 YJLV23 YJV23	3	25-300	25-300	35-300	-
YJLV32 YJV32 YJLV33 YJV33	3	25-300	25-300	35-300	-
YJLV42 YJV42 YJLV43 YJV43	3	25-300	25-300	35-150

Steel tape armored copper core power cable-VV22

ZRYJV flame retardant low voltage power cable