VDE Standard H03VV-F H03vvH2-F H03V2V2-F PVC Power Cable

1.The standards

The power cable is mainly complying with VDE standard, also can be produced according to OEM requirements and other standards, such as BS, DIN, ASTM, IEC 60502, NFC standards, and so on.

2.the construction of the power cable for different voltage grade

2.1 low voltage cable power cable

Low voltage 300/500V

single core or multi-core

copper or aluminium conductor

pvc inusulation

steel tape armored or galvanized steel wire armored or unarmored

pvc outer sheath

power cable.

2.2 medium voltage cabel power cable

Voltage grade is up to 35kv,

cross-section area can be up to 1000 sqmm (copper or aluminiun conductor).

Conductor long-time operating temperature is 90 degrees.

In short circuit, conductor highest temperature should be not more than 250 degrees.

1kv-35 kv

multi-cores

copper or aluminium conductor

xlpe insulation

copper tape or copper wire screen

galvanized steel wire armored

pvc or pe sheath

power cable

2.3 high voltage cable power cable

High voltage (35kv~220kv)

copper or aluminium conductor

PVC insulation

metal sheath (lead or corrugated aluminium)

hdpe or pvc outer sheath power cable.

Laying conditions: for lyaing under ground with large different altitude, be able to bear external machanical force and moderate pulling force.

3. the power cable's characteristic:

3.1 long time operating temperature for cable conductor is 90 degrees.

3.2 the highest temperature of the conductor in short circuit (no longer than 5 seconds) in not more than 250 degrees,

if a joint is in the cable, the temperature of the tinning welding joint is not more than 120 degrees, compressing joint not more than 150 degrees and electro-welding joint not more than 250 degrees.

3.3 no drop in limited provided there is full mechanical tention when cable is laid. It si forbidden to lay cable in iron-pipe or to fix cable by circling around the cable with iron materials.

3.4 being laid, the minimum temperature of the cable shall not be lower than zero degree. In the case of lower temperature, heating measures shall be taken.

4).nominal cross-sectional areas:1.5 mm² , 2.5 mm² ,4 mm² , 6 mm² , 10 mm² , 16 mm² ,25 mm² , 35 mm² , 50 mm² ,70 mm² , 95 mm² ,120 mm² ,150 mm² ,185 mm² ,240 mm² ,300 mm² 400 mm² 500 mm² 630 mm² 800 mm²

5)production range: single core cable from 1.5 mm² to 800 mm²,muli-core cable from 1.5 mm² to 400 mm²

6).operating characteristics:

Rated power-frequency voltage u0/u:0.6/1 KV

Max permissible continuous operating temperature of conductor 70

Max short-circuit temperature of the conductor shall not exceed (Max 5 seconds duration): cross-section of conductor 300 mm²

The anbient temperature under installations should not be below 0

The bending radius of single core cable should not be less than 20 times of the cable diameter ,the bending radius of multi-core cable should not be less than 15 times of the cable diameter