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6

Power Cable

6.1

XLPE insulated pwoer cable

6.1.2

XLPE insulated power cable with rated coltage from 3.6/6kv to 26/35kv

a

Standard

XLPE insulated pwoer cable with rated coltage from 3.6/6kV to 26/35kV is produced according to Manufactorer Standard Q/320481LL019-2003(The main quality and specification are higher than IEC60502-1998, IEC60840-1998, GB/T12706-2002.

b	Application

Maximum rated operation temperature of conductor:90℃?br />

Maximum short circuit temperature of conductor (duration 5sec.)250℃?/li>

It should be pre-warmed before installation when the ambient temperature is below 0℃?

Minimum bending radius of cable for installation(D is the overall diameter of cable):
For non-armoured single core cable:20D
For non-armoured three-core cable:15D
For armoured single core cable:15D
For armoured three-core cable:12D

c

Structure

d	Conteast Table of Main technical properties among different standards

Items	Q/320481LL019-2003 (Enterprise Standard)	IEC60502-1998 IEC60840-1999	GB/T12706-2002
Routine Partial discharge test	Discharge magnitude at 2Uo shall not exceed 5PC.	For cable of Uo鈮?8kv ,discharge magnit-ude at 1.73Uo shall not exceed 10PC; For cable of Uo>18kv ,discharge magnitude at 1.73Uo shall not exceed 10PC.	Discharge magmitude at 1.73Uo shall not exceed 10PC.
Routine A.C.voltage text	For cable of Uo鈮?8kv,test voltage of 3.5Uo shall be app-lied for 5 minutes and no brea-kdown of insulation shall occcur;	For cable of Uo鈮?8kv,test voltage of 3.5Uo shall be app-lied for 5 minutes and no brea-kdown of insulation shall occcur; For calbe of Uo 鈮?8kv,test	For cable of Uo≤18kv,test voltage of 3.5Uo shall be app-lied for 5 minutes and no brea-kdown of insulation shall occcur;
	For cable of Uo鈮?8kv.test voltage of 3.5Uo shall be applied for 5 minutes of 2.5Uo shall be applied for 5 minutes. no breakdown of insulation shall occur.	For cable of Uo>18kv.test voltage of 2.5Uo shall be applied for 30 minutes no breakdown of insulation shall occur.	For cable of Uo≤18kv.test voltage of 3.5Uo shall be applied for 5 minutes of 2.5Uo shall be applied for 5 minutes. no breakdown of insulation shall occur.
Insulation shrinkage test	Not more than 2%	Not more than 4%	Not more than 4%
Hot set test	Not more than 130%	Not more than 175%	Not more than 175%
Measurement on cores at the maxi-mum temperature of calbe	For cable of Uo鈮?kv and Uo 鈮?8kv; not more than 4010; For cable of Uo>18kv; not more than 510	For cable of Uo鈮?kv and Uo 鈮?8kv; not more than 8010; For cable of Uo>18kv; not more than 1010	For cable of Uo≥6kv and Uo ≤18kv; not more than 8010; For cable of Uo>18kv; not more than 1010
Insulation eccentricity(2)	Not more than 8%
Conductor compacted factor	Not less than 90%

Note:

Insulation calculating formular: P=(Smax-Smin)/Smax
P-Insulation eccentriity Smax-Max.insulation thickness of the same section; Smin -Min.insulation thickness of the same section.

e	Type & description

Type		Description	Installation location
Coper core	Aluminium core	Description	Installation location
YJV	YJLV	XPLE insulated PVC sheathed power cable	Aerial, indoor, trench, channel and conduit
YJY	YJLY	XPLE insulated PVC sheathed power cable	Aerial, indoor, trench, channel and conduit
YJV22	YJLV22	XPLE insulated steel tape armoured and PVC sheathed power cable	Aerial,trench, channel and conduit
YJV23	YJLV23	XPLE insulated steel tape armoured and PE sheathed power cable	Aerial,trench, channel and conduit
YJV32	YJLV32	XPLE insulated fine steel wire armoured and PVC sheathed power cable	Large difference shaft and underwater
YJV33	YJLV33	XPLE insulated fine steel wire armoured and PE sheathed power cable	Large difference shaft and underwater
YJV42	YJLV42	XPLE insulated thick steel wire armoured and PVC sheathed power cable	The shaft for bearing large
YJV43	YJLV43	XPLE insulated thick steel wire armoured and PE sheathed pwoer cable	puling force and submarine

f	Rated voltage of cable,nominal sectional area and no.of core

Type		No.of Core	Rated Voltage(kv)
			12/20	18/30-26/35
			Nominal cross sectional area(mm?
YJV	YJLV	1	25-1200	35-1200
YJY	YJLY		25-1200	35-1200
YJV32	YJLV32		25-1200	35-1200
YJV33	YJLV33		25-1200	35-1200
YJV42	YJLV42		25-1200	35-1200
YJV43	YJLV43		25-1200	35-1200
YJV	YJLV	3	25-500	35-500
YJY	YJLY		25-500	35-500
YJV22	YJLV22		25-500	35-500
YJV23	YJLV23		25-500	35-500
YJV32	YJLV32		25-500	35-500
YJV33	YJLV33		25-500	35-500
YJV42	YJLV42		25-500	35-500
YJV43	YJLV43		25-500	35500

Copyright: GHCABLE(Danyang Ganghong Electric Wire & Power Cable Co., Ltd)

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