China 0.6/1kv 600/1000V Underground Power Cable PVC/XLPE Insulated Swa 3 Cores

Product Description

1.Application
XLPE insulated power cable has a number of advantages over paper insulated and PVC insulated cable. XLPE cable has high electric
strength, mechanical strength, high-ageing resisting, environmental stress resisting aiti-chemical, corrosion, and simple construction, using
convenient and higher operating of long term temperature. It can be laid with no drop restriction.
Various of flame-retardant XLPE cable can be manufactured with three technology .The flame-retardant cable covers all kinds of low-smoke,
halogen
free, and non-smoke non-halogenated and three classes of A,B,C.
2.Construction
Scope of XLPE cable
Type No. of Core Nominal cross-section

Type	No. of Core	Nominal cross-section
Cu(AL)/XLPE/PVC(PE) Cu(AL)/XLPE/ATA/PVC(PE)Cu(AL)/XLPE/AWA/PVC(PE)	1	1.5-1000
Cu(AL)/XLPE/STA/PVC(PE) Cu(AL)/XLPE/SWA/PVC(PE)	2,3,4,5	1.5-400
Cu(AL)/XLPE/STA/PVC(PE) Cu(AL)/XLPE/SWA/PVC(PE)	3+1,4+1,3+2	2.5-400

Cross-section area of neutral conductor
In 3+1cores and 3+2cores should conform to specification of following table:

Nominal cross-section	Main core	2.5	4	6	10	16	25	35	50
	Neutral core	1.5	2.5	4	6	10	16	16	25
Nominal cross-section	Main core	70	95	120	150	185	240	300	400
	Neutral core	35	50	70	70	95	120	150	185

3. Characteristic
D.C Resistance of finished cable at 20ºC per km is not more than the following:

Nominal cross-section mm2	15	2.5	4	6	10	16	25
Cu core	12.1	7.41	4.61	3.08	1.83	1.15	0.727
Al core	18.1	12.1	7.41	4.61	3.08	1.91	1.20
Nominal cross-section mm2	35	50	70	95	120	150	185
Cu core	0.524	0.387	0.268	0.193	0.153	0.124	0.0991
Al core	0.868	0.641	0.443	0.320	0.253	0.206	0.164
Nominal cross-section mm2	240	300	400	500	630	800	1000
Cu core	0.0754	0.0601	0.0470	0.0366	0.0283	0.0221	0.0176
Al core	0.125	0.100	0.0778	0.0605	0.0469	0.0367	0.0291

Voltage test:
Each drum of finished cable should withstand power frequency voltage 3.5kV for 5 minutes,the insulation is not breakdown.
Service conditions and operation parameters of Cable:
The cable is applied to fixed installation for rated voltage 0.6/1kV of power transportation and distribution line.
Max. rated temperature of conductor. nominal operating 90ºC
Short circuit: max. for 5 sec.250ºC
The cable can be laid without drop restriction, and the environment temperature shall not be lower than 0ºC.
4.Standard
Our XLPE cable can be manufactured according to the company's specification which is equivalent to IEC 60502,IEC60332,IEC60754.
Some indexes are superior to above international standard.