Product description
DFW-40.5 630 \ 20 cable distribution box for 40.5kV three-phase AC 50Hz power distribution system, the connection cable, as the acceptance and distribution of electrical energy purposes.
Cable distribution box of the inlet and outlet can meet the cross-section of 50 ~ 300mm2 the use of power cables, the product can provide a single cable into the line, dual cable entry and exit lines and other installation. Installation and maintenance is simple, there is no fire hazard, especially for industrial and mining enterprises and high-voltage transmission and as a power distribution purposes. Is a suitable for cable transmission and distribution of the use of new power distribution equipment.
SF6 gas insulated load switch, disconnector or circuit breaker. the front of the distribution box, side wiring, with the rear explosion-proof valve with the full guarantee of the safety of operators and equipment.
Model Description
Use environmental conditions
1. the ambient temperature is not higher than +40 ℃, 24 hours on average no more than +30 ℃. Ambient temperature is not lower than -30 ℃.
2. the surrounding media without explosion and flammable danger, not enough to damage the insulation and corrosion of metal gas or steam, no conductive dust.
3. Installation site without severe vibration and bumps, installation tilt is not greater than 5 °.
the altitude of the installation site does not exceed 1000m.
Note: If the installation site exceeds 1000m above sea level, consult with the manufacturer.
the main technical parameters
Rated voltage: 40.5kV;
Rated frequency: 50Hz;
Rated current: access and feed are 630A;
Dynamic current: 50kA (peak);
Thermal stability current: 20kA (RMS) 4s;
Rated short-time power frequency withstand voltage: phase, relative to the 95kV / 1min; (dry state)
Rated short-time power frequency withstand voltage: fracture: 110KV; (dry state)
Rated lightning impulse withstand voltage: phase, relative to 185kV (1.2 / 50μs);
Rated lightning impulse withstand voltage: fracture: 215KV;
Protection class: IP34; (housing)
Features
Fully insulated, fully sealed structure, safe and reliable
A variety of wiring methods, easy to install
Load switch small size, compact structure, easy to operate
Isolate the fault area, reduce the power outage area
Convenient line maintenance, maintenance
DFW-40.5 630 \ 20 cable distribution box for 40.5kV three-phase AC 50Hz power distribution system, the connection cable, as the acceptance and distribution of electrical energy purposes.
Cable distribution box of the inlet and outlet can meet the cross-section of 50 ~ 300mm2 the use of power cables, the product can provide a single cable into the line, dual cable entry and exit lines and other installation. Installation and maintenance is simple, there is no fire hazard, especially for industrial and mining enterprises and high-voltage transmission and as a power distribution purposes. Is a suitable for cable transmission and distribution of the use of new power distribution equipment.
SF6 gas insulated load switch, disconnector or circuit breaker. the front of the distribution box, side wiring, with the rear explosion-proof valve with the full guarantee of the safety of operators and equipment.
Model Description
Use environmental conditions
1. the ambient temperature is not higher than +40 ℃, 24 hours on average no more than +30 ℃. Ambient temperature is not lower than -30 ℃.
2. the surrounding media without explosion and flammable danger, not enough to damage the insulation and corrosion of metal gas or steam, no conductive dust.
3. Installation site without severe vibration and bumps, installation tilt is not greater than 5 °.
the altitude of the installation site does not exceed 1000m.
Note: If the installation site exceeds 1000m above sea level, consult with the manufacturer.
the main technical parameters
Rated voltage: 40.5kV;
Rated frequency: 50Hz;
Rated current: access and feed are 630A;
Dynamic current: 50kA (peak);
Thermal stability current: 20kA (RMS) 4s;
Rated short-time power frequency withstand voltage: phase, relative to the 95kV / 1min; (dry state)
Rated short-time power frequency withstand voltage: fracture: 110KV; (dry state)
Rated lightning impulse withstand voltage: phase, relative to 185kV (1.2 / 50μs);
Rated lightning impulse withstand voltage: fracture: 215KV;
Protection class: IP34; (housing)
Features
Fully insulated, fully sealed structure, safe and reliable
A variety of wiring methods, easy to install
Load switch small size, compact structure, easy to operate
Isolate the fault area, reduce the power outage area
Convenient line maintenance, maintenance

