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Cross-linked polyethylene insulated power cable not only has excellent electric, mechanical properties, but also has powerful resistance against chemical corrosion, heat aging and environmental stress. Its structure is simple. The long term operating temperature is 90ºC.It is convenient to use and can be laid with no restriction of different level.
Delay the spread of flame along the cable so that the fire will not expand. Because of its low cost, it is widely used in fireproof cables. Under the conditions of single cable or bundle laying, the spread of flame can be controlled within a certain range when the cable is burning, so the major disasters caused by fire can be avoided, so as to improve the fire prevention level of the cable line.

YJ: XLPE insulation
L: Aluminum conductor
V: PVC sheath
32:Steel wire armoring-3 cores
22:Steel tape armoring-3 cores
72: Aluminum wire armoring-1 core
62: Stainless steel tape armoring-1 core
ZR: Flame resistant

A) during normal operation of cable, the maximum conductor temperature shall be 70℃ for PVC insulation and 90℃ for XLPE insulation.
B) Maximum temperature of conductor during short circuit (maximum duration not exceeding 5 seconds) :
PVC insulation -- 160℃ for conductor cross section ≤300mm2, 140℃ for conductor cross section > 300mm2; Crosslinked PVC insulation at 250℃.
C) When laying cables, the ambient temperature shall not be less than 0℃, and the minimum allowable bending radius is as follows:
Single core cable: unarmored 20D, armored 15D
Multi-core cable: 15D for unarmored, 12D for armored
Where: D- actual outer diameter of cable.
D) Cable breaking force:
Aluminum core cable: 40×S (N)
Copper core cable: 70×S (N)
Note: S is the total cross-sectional area of the conductor












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