Braided Shield XLPE Insulated Nuclear Power Plant Cable

Application

 This product is used as 1E-class circuit for the power configuration, control, testing, communications and instrument

compensation of nuclear island factory building of nuclear power plant.

Construction

Conductor                                  copper

Insulation                                  XLPE

Sheath                                       PVC

 Product description

a,Rated  voltage(U0/U):0.6/1KV.
b,Max. permissible continuous operating temperature of conductor is 90°C, while for short circuit (no more than four seconds) the temperature is 250°C.
c,The ambient temperature under installation is -10°C~40°C.
d,The permissible bending radius under installation: 
For Unshielded Cable: no less than 6 times of overall diameter 
For shielded cable: no less than 8 times of overall diameter 
e,Min. permissible ambient temperature under installation:  -40°C 
f,Normal useful life: 50 years.
g,Special properties of cable: 
(1)The cable can undergo bundled burning test specified in GB/T18380.3 (IEC 332-3).
(2)The insulated conductor of cable can undergo vertical burning test specified in GB/T18380.1 (IEC332-1).
(3)The low smoke property of cable conforms to the regulations specified in GB/T 17651(IEC61034): light transmittance ≥60.
(4)The low halogen property of cable conforms to regulations specified in GB/T 17650.2(IEC60754-2): PH≥4.3,electrical conductivity<10μs/mm. 
h,Electric property of cable:
(1)Cable can withstand the test of AC 3500V/5min without breakdown;
(2)The resistivity of conductorρ20 not more than 0.0172410Ω·mm²/m 
(3)Insulation resistance constant: K20 not less than 3670MΩ·km,K60 not less than 367 MΩ·km,K90 not less than 36 MΩ·km. 

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