High XLPE power cable Products Current Ratings Installation Guidelines Cable Technical Parameters Electric cable appendix product characteristic and scope Accessories Construction of the preparatory work
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Aerial insulated cables Aerial insulated cables with rated voltages 35KV Aerial insulated cables with rated voltages 10KV Aerial insulated cables of rated voltages up to and includin

Aerial insulated cables

Aerial insulated cables with rated voltages 35KV

　　Standard

　　The product is manufactured according to the standard of GB12706 or IEC , BS , DIN and ICEA upon request.

　　Applications

　　The product is suitable for use in power distribution networks or fixed installations for industrial equipments with rated voltage up to and including 35KV.

　　Operating characteristics

　　1. XLPE Insulated Electrical Cable for rated power frequency voltage Uo/U:3.6/6KV~26/35KV.

　　Max.permissible continuous operating temperature of conductor:90℃

　　Max.short-circuit temperature of conductor shall not exceed 250℃.(5s Max. Duration)

　　The bending radius of single-core cable shall not less than 20 times of the cable diameter

　　The bending radius of three-cores cable shall not less than 15 times of the cable diameter

　　2. XLPE Insulated Electrical Cable for rated power frequency voltage Uo/U : 0.6/1KV

　　Max.permissible continuous operating temperature of conductor : 90℃

　　Max.short-circuit temperature of the conductor shall not exceed 250 ℃

　　The ambient temperature under installation shall not below 0 ℃

　　The bending radius of a cable shall not less than 15 times of the cable diameter .

　　3. PVC Insulated Electrical Cable for rated power frequency voltage Uo/U : 0.6/1KV

　　Max.permissible continuous operating temperature of conductor : 70 ℃

　　Max.short-circuit temperature of the conductor shall not exceed :160℃

　　The ambient temperature under installation shall not below 0 ℃

　　The bending radius of a cable shall not be less than 10 times of the cable diameter.

　　Voltage designation

　　The rated voltage of the cable for a given application shall be suitable for the operating conditions in the system in which the cable is used , and is expressed in the form Uo/U(Um)kv .

　　Where:

　　Uo—The rated power-frequency voltage between conductor and screen or metallic-sheath , for which the cable designed;

　　U — The rated power –frequency voltage between conductors , for which the cable designed ;

　　Um—The maximum value of the “highest system voltage “ for which the equipment may be operated.

　　The first class cable-suitable for one single-phase earth-fault time does not exceed 1 min each time and Max.

　　Time not exceed 8 hours , and not exceed 125 hours in all in one year.

　　The second class cable suitable for more the earth-fault time and more better insulation performance.