XLPE insulated power cable of 35kV and below_Power Cable_Products_Anhui Huahai Special Cable Group Co., Ltd.

XLPE insulated power cable of 35kV and below

First. product features and uses

This product is suitable for transmitting electrical energy in power equipment and power lines with AC rated voltage of 35kV and below. XLPE insulated power cable has excellent thermal-mechanical performance, excellent electrical and chemical resistance, and it also has cable weight. Light, convenient to transport, not subject to drop restrictions, etc., it is widely used in metallurgical, electric power, petrochemical enterprises and urban power grid construction.

Second. product implementation standards

GB/T12706 equivalent to adopt IEC60502 standard

Flame retardant and fire resistance test is carried out according to GB/T12666-2008 standard

Third. the use of characteristics

Use characteristics		XLPE insulation
Rated voltageU₀/U		0.6/1、1.8/3、3.6/6、6/6、6/10、8.7/10、8.7/15、12/20、21/35、26/35
Maximum operating temperature of the conductor		90℃
Short circuit temperature (lasting 5S)		≤250℃
Ambient temperature during laying		≥0°C (preheating is required below 0°C)
Allowable bending radius when laying	Single core cable	Not less than 10 times the outer diameter of the cable
	Multi-core cable	Not less than 15 times the outer diameter of the cable
Flame retardant properties		Comply with GB/T19666-2005A, B or C (IEC332-3)

Fourth. the basic model and name

model	product name
YJV	Copper core XLPE insulated PVC sheathed power cable
YJVD	Copper core XLPE insulated PVC sheathed low-smoke low-halogen flame-retardant power cable
YJE	Copper core XLPE insulated polyolefin sheathed low-smoke low-halogen flame-retardant power cable
YJV₂₂	Copper core XLPE insulated steel tape armored PVC sheathed power cable
YJV₂₃	Copper core XLPE insulated steel tape armored PE sheathed power cable
YJV₃₂	Copper core XLPE insulated thin steel wire armored PVC sheathed power cable
YJV₃₃	Copper core XLPE insulated thin steel wire armored PE sheathed power cable

Note: The aluminum core cable adds L to the model number, and the flame retardant cable adds ZR to the model number.

V. Code name and meaning

Code	Code meaning
-	Non flame retardant
ZR	Flame retardant: divided into three grades A, B and C
insulation
YJ	XLPE
E	Low-smoke halogen-free flame retardant polyolefin
jacket
V	Polyvinyl chloride
VD	Low-smoke low-halogen flame retardant PVC
Armoured
2	Double steel wire armor
3	Thin steel wire armor
4	Thick steel wire armor

Six. main technical indicators:

1. The DC resistance of the finished cable conductor (according to the provisions of GB/T3956), refer to Table 1 of Appendix A;

2. Power frequency voltage test:

U₀ is 3.6kV and below cable: 2.5U₀+2/5min without breakdown;

U₀ is a cable of 3.6kV or more to 18kV: 3.5U₀/5min without breakdown;

U₀ is a cable of 18kV or more to 26kV: 3.5U₀/5min or 2.5U₀/30min.

3. Partial discharge test: The discharge amount is not more than 10pc under 1.73U₀.

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