1kV/3kV PVC Insulated (Flame-Retardant) Power Cable

Standards
The 1kV/3kV PVC insulated (flame-retardant) power cable meets the national standard of GB/T 12706-2008 which is equal to IEC 60502-2004. The flame retardant property conforms to the GB/T 18380-2008 which means that it also satisfies IEC 60332-2004.

Applications
This PVC insulated power cable is suitable for electricity transmission and distribution line whose rated voltage is 0.6/1kV. The flame-retardant type is used in places where high cable density and good fire-proof property are required, such as subway, power station, high-rise building, entertainment place, large industrial and mining enterprises, etc.

Application Properties
1. Rated voltage U0/U: 0.6/1kV, 1.8/3kV
2. Permitted long-term working temperature: 70℃
3. Short circuit: Conductor temperature ≤160℃, lasting time ≤5 seconds
4. The ambient temperature should above 0℃ when laying, and preheating is necessary if the temperature is below 0℃. The laying process is not affected by the drop height.
5. Minimum bending radius during laying: 20 times of outer cable diameter for single core type, and 15 times for multi-core type.
6. The neutrality of five-core power cable is distinct from the earth wire, and the system is very stable.

Model Explanation

Model		Descriptions	Applications
Cu Core	Al Core
V VVY	VLV VLY	PVC insulated and PVC sheathed power cablePVC insulated and PE sheathed power cable	It is laid outdoors, such as tunnel and pipeline. External mechanical force should be avoided.
V V22 V V23	VLV22 VLV23	PVC insulated, steel tape armored and PVC sheathed power cable PVC insulated, steel tape armored and PE sheathed power cable	It can be installed indoors, outdoors, underground, in the pipeline as well as in the tunnel. In addition, external mechanical force is applicable.
V V32 V V33	VLV32 VLV33	PVC insulated, thin steel wire armored and PVC sheathed power cable PVC insulated, thin steel wire armored and PE sheathed power cable	It is suitable for both indoor and outdoor places, such as tunnel, duct, water, vertical well, or places with high drop height. It can withstand external mechanical force and pretty big tensile force.

Note:
1. The models also contain flame-retardant type.
2. When signing the contract, the flame retardant type must be specified. For example, if type A is preferred, please add "A" to the end of "ZR", forming "ZRA", and A is usually used in places where the flame-retardant property is highly required. B and C follow the same rule. In addition, if there is no letter after "ZR", the cable will be produced following "ZRC".

Production Range

Model	Nominal Cross Section (mm2)
	Single Core	Two Core	Three Core	Four Core	Five Core
V V VLVVY VLYV VR(VRV)	1.5-800	1.5-800	1.5-800	1.5-800	1.5-800
V V22VLV22V V23 VLV23	-	4-300	4-400	4-400	4-400
V V32VLV32 V V33 VLV33	10-800	10-800	10-800	10-800	10-800

Note:
1. Flame-retardant type is also supplied.
2. There are different cross section structures for the four-core type and five-core type. For the four-core type, the four cores have equal cross sections, or three of them have bigger cross section than the left one. For the five-core type, the five cores may share the same cross section, or four of them are bigger than the rest, or three of them are bigger while the other two are smaller.

Color of Cores

No. of Cores	Color and Number Mark of Insulated Core
	Main Core Neutral Core	Grounding Core	Neutral Core(No.5 Core)
1	Random Color	-	-
2	Red 1	Blue 0
3	Yellow 1, Green 2, Red 3	-
3 1		Blue 0
4
3 2	Yellow 1, Green 2, Red 3, Blue 4		Black 0
4 1		-	Black 0

For the 0.6/1kV PVC insulated power cable, its resistivity should be over 36.7MΩ•km at 20℃. Meanwhile, voltage withstand test is applied to the finished product, and the test condition is AC 3.5kV, 50Hz, 5 minutes. During this period, breakdown should not occur.

After the cable is laid, DC voltage withstand test should be carried out. The recommended test voltage is 4U0 where U0 is the conductor's voltage to earth, and for this product, U0 is 0.6kV. The test time is 15 minutes. In addition, the flame-retardant property should meet the requirements of vertical flame propagation test of GB/T 18380.3-2008 and IEC 60332-2004 standards.

Technical Parameters

Nominal Cross Section (mm2)	DC Resistance at 20℃ (≤Ω/km)
	Cu Core	Al Core
1.5 2.546 10 16 25 35 50 70 95 120 150 185 240 600 400 500 630	12.1 7.414.61 3.08 1.83 1.15 0.727 0.524 0.387 0.268 0.1930.153 0.124 0.0991 0.0754 0.0601 0.0470 0.0366 0.0283	- - - - 3.08 1.91 1.20 0.868 0.641 0.443 0.320 0.253 0.206 0.164 0.125 0.100 0.0778 0.0605 0.0469

Correction Factors of Current Capacity for Different Thermal Resistivity Coefficients of Soil

Rated Voltage (kV)	Cross Section (mm2)	Thermal Resistivity Coefficient of Soil (K·m/W)
		0.8	1.0	1.2	1.5	2.0
0.6/1 1.8/3	35 and below	1.06	1.00	0.95	0.88	0.80
	50-100	1.08	1.00	0.94	0.87	0.77
	185 and above	1.09	1.00	0.93	0.85	0.76

Note: Thermal resistivity coefficient of soil: PT=1.0 K•m/W.

Correction Factors of Current Capacity at Different Ambient Temperature

Operating Temperature (℃)	Air Temperature (℃)									Soil Temperature (℃)
	10	15	20	25	30	35	40	45	50	5	10	15	20	25	30	35
90	1.26	1.22	1.18	1.14	1.09	1.04	1.00	0.94	0.89	1.14	1.11	1.07	1.04	1.00	0.96	0.92

Note: Ambient temperature: 40℃ for air and 25℃ for soil.

Cable Length
For most cases, the PVC insulated power cable is transported in drum, and the total length is often longer than 100 meters. However, cables with length of less than 20 meters can also be delivered, but their amount should not exceed 10% of the total length. Based on the negotiation, any length is available, and the length error is within ±0.5%.

Detailed Parameters

Single core 0.6/1kV PVC insulated and PVC sheathed (flame-retardant) power cable
Double core 0.6/1kV PVC insulated (steel tape armored) and PVC sheathed (flame-retardant) power cable
3-core 0.6/1kV PVC insulated (steel tape armored) and PVC sheathed (flame-retardant) power cable
4-core 0.6/1kV PVC insulated (steel tape armored) and PVC sheathed (flame-retardant) power cable
5-core 0.6/1kV PVC insulated (steel tape armored) and PVC sheathed (flame-retardant) power cable

Related Names
Power Supply Cable Saler | Energy Supply | Electrical Product