Super-high Voltage Cable 500KV Up To 750 KV XLPE Insulated Electric Cable

Super-high voltage cable 500KV up to 750 KV XLPE insulated electric cable

1,Item name :　 500KV XLPE insulated electric cable

　STANDARD : IEC62067 (or standard demanded by buyer )

2,Type :

YJLW02,YJLLW02 ,YJLW03,YJLLW03

3, Application :

Suitable for the places with a higher underground water level and to be used underground, in the tunnels or pipes. Such cables bear a bigger pulling force and pressure

4,Operating charactor:

1)up to 90℃, and overload when meet an emergency is 130℃ ,When short circuit (in ≤5 seconds) the highest temperature is 250℃
2)When installing or laying cable, the ambient temperature should be less than -20℃, and have to give a preheat to cable.

3)The minimum bending diameter:

4)Allowed biggest axial traction force to outer diameter when laying cable (not consider the radial lateral-pressure at bent section) T=K×core NO. ×section (kg), in formula, the coefficient K value should be: the copper core get 7, the aluminum core get 4.
5)Allowed biggest lateral-press P, when cable is being bent
The single core cable is required P≤500kg/m.
P=T/R (T is indicated axial traction force; R is indicated radius of bent-wheel), Knowing from above formula, as the traction force is made up by length and weight of cable. So it lets P to applying requirement as above. Then the diameter of bent-wheel should be widened.
6)Cable laying is not being restricted by drop.

5,Certification :

6,500kv projects introduction :