3.6-35kv Xlpe Insulated Power Cable

一、Standards
The cable meets the standard requirements of GB/T12706-2002 or IEC60502-1997. It is suitable to be installed in the power line with rated voltage from U0/U(Um) of 3.6/6(7.2)kV to 26/35(40.5)kV.

二、Type, Designation and Applications

Type	Designation	Applications
YJV YJLV	Cu or Al conductor XLPE insulated PVC sheathed power cable	For laying indoors and outdoors. Able to bear certain traction during installation, but not external mechanical forces. Laying single core cable in magnetic ducts is not allowed.
YJV22 YJLV22	Cu or Al conductor XLPE insulated PVC sheathed internal steel tape armored power cable	Suitable for burying in ground, Able to bear external mechanical forces but large pulling forces.

三、Specifications

Type	Number of cores	U0/U(Um) Rated Voltage
		3.6/6(7.2) 6/6(7.2)		6/10(12) 8.7/10(12)		8.7/15(17.5) 12/20(24)		18/30(36) 26/35(40.5)
		Nominal Cross-sectional Area (mm2)
YJV YJV22	1	35-630	35-630		35-630		50-630
YJLV YJLV22	1	35-630	35-630		35-630		50-630
YJV YJV22	3	35-300	35-300		35-300
YJLV YJLV22	3	25-300	25-300		25-300

四、Structure Drawing
Conductor
Inner semi-conductor screen
Insulation
Soft copper tape
Binder
Outer-sheath

Filler
Conductor
Inner semi-conductor screen
Insulation
Soft copper tape
Binder
Under-sheath
Steel tape
Outer-sheath


Filler
Conductor
Inner semi-conductor screen
Insulation
Soft copper tape
Binder
Under-sheath
Steel wire
Outer-sheath


五、Using properties
Earth fault permissible duration
The operating systems are divided into three categories available for selecting cable.
Category A: When any phase is earthed, the cable can be departed from the system within 1 minute.
Category B：The earth fault duration each time does not exceed one hour, the accumulated time shall not exceed 125 hours each year.
Category C: Excluded categories from A and B.

Rated voltage of cable for three-phase system

Um/kV The maximum voltage vales for the system (Um/kV)	U0/kV
	Category A Category B	Category C
7.2	3.6	6.0
12.0	6.0	8.7
17.5	8.7	12.0
24.0	12.0	18.0
36.0	18.0

2、The maximum rated temperature
The maximum operating temperature of cores shall not exceed 90℃ when the cable is used for long period. The temperature of cores shall not exceed 250℃ at short circuit for 5 seconds.

3、Installation requirement

The installation of cables is not limited by the difference of level along the route. The ambient temperature should not be below 0℃ during installation. The permissible bending radius for cable shall not be less than 10 times of the cable diameter. The single cable shall be without amour or with steel wire amour when it is electrified with alternating current and shall not be laid in magnetic ducts.

六、Technical specifications


七、Technical parameters
3.6/6(7.2)kV XLPE insulated power cable (single core)

3.6/6(7.2)kV XLPE insulated power cable (three cores)

6/6(7.2)kV & 6/10(12)kV XLPE insulated power cable (single core)

6/6(7.2)kV & 6/10(12)kV XLPE insulated power cable (three cores)

8.7/10(12)kV & 8.7/15(17.5)kV XLPE insulated power cable (single core)

8.7/10(12)kV & 8.7/15(17.5)kV XLPE insulated power cable (three cores)

12/20(24)kV XLPE insulated power cable (single core)

8.7/10(12)kV XLPE insulated power cable (three cores)

18/30(36)kV XLPE insulated power cable (single core)

21/35(40.5)kV XLPE insulated power cable (single core)

26/35(40.5)kV XLPE insulated power cable (single core)


八、Flame Retardant XLPE cable
The electric properties of flame retardant XLPE cable are the same as those of ordinary XLPE cable. The combustion property of flame retardant cable complies with category A, B, C of bunched burning according to GB1266-90 (equivalent to IEC332-3). The construction and dimension are identical with ordinary XLPE cable except cables of ZRA-YJV and ZRA-YJLV. The flame retardant PVC is used as the inner covering and the sheath of cable.
Type of flame retardant XLPE cable:
Category A: ZRA-YJV、ZRA-YJLV、ZRA-YJV22、ZRA-YJLV22
Category B: ZRB-YJV、ZRB-YJLV、ZRB-YJV22
Category C: ZR-YJV、ZR-YJLV、ZR-YJV22、ZRA-YJLV22

九、The circumstance temperature is 40℃ in the air. The thermal resistivity of soil is 100℃cm/w.

In the Air
Voltage Level	3.6/6(7.2)～12/20(24) kV		18/30(36)～26/35(40.5)kV		6/6(7.2)～12/20(24)kV
Arrangement
Nominal Cross-sectional Area of Copper Conductor(mm2)	Current Capacity (A)
25	140	165	-	-	120
35	170	205	-	-	140
50	205	245	220	245	165
70	260	305	270	305	210
95	315	370	330	370	255
120	360	430	375	425	290
150	410	490	425	485	330
185	470	560	485	555	375
240	555	665	560	650	435
300	640	765	650	745	405
400	745	890	760	870	-
500	855	1030	875	1000	-
630	980	1190	1000	1160	-
Nominal Cross-sectional Area of Aluminum Conductor(mm2)	Current Capacity (A)
25	110	130	-	-	90
35	135	155	-	-	110
50	160	190	170	190	130
70	200	235	210	235	165
95	245	290	255	285	200
120	280	335	290	330	225
150	320	380	330	375	255
185	365	435	380	430	295
240	435	515	435	505	345
300	500	959	510	580	390
400	585	695	595	680	-
500	680	810	690	790	-
630	790	950	800	920	-

In the Soil
Voltage Level	3.6/6(7.2)～12/20(24) kV		18/30(36)～26/35(40.5)kV		6/6(7.2)～12/20(24)kV
Arrangement
Nominal Cross-sectional Area of Copper Conductor(mm2)	Current Capacity (A)
25	150	160	-	-	125
35	180	190	-	-	155
50	215	225	215	225	180
70	265	275	265	275	220
95	315	330	315	330	265
120	360	375	360	375	300
150	405	425	400	420	340
185	455	480	455	475	380
240	530	555	525	555	435
300	595	630	595	630	485
400	680	725	680	720	-
500	765	825	775	825	-
630	860	940	875	940	-
(mm2) Nominal Cross-sectional Area of Aluminum Conductor	Current Capacity (A)
25	115	120	-	-	100
35	135	145	-	-	120
50	160	175	165	175	140
70	200	215	200	215	170
95	240	255	240	255	210
120	270	295	270	290	235
150	305	330	305	325	260
185	345	370	345	370	300
240	400	435	400	430	345
300	455	490	455	490	390
400	520	565	525	565	-
500	595	650	600	645	-
630	680	745	685	740	-