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DFW 10kV cable branch box

DFW series high voltage cable junction box is widely used for node connection of 35kV, 25kV and 10kV cable systems. It is the main electrical equipment for collecting and tapping cables after they are led out from the switchgear. The cable joint of the distribution box adopts imported rubber with high-grade insulation, which is tightly wrapped and insulated without exposed electrified body; SF6 insulated load switch is adopted for all switches with switch distribution box.
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Product overview

DFW series high voltage cable junction box is widely used for node connection of 35kV, 25kV and 10kV cable systems. It is the main electrical equipment for collecting and tapping cables after they are led out from the switchgear. The cable joint of the distribution box adopts imported rubber with high-grade insulation, which is tightly wrapped and insulated without exposed electrified body; SF6 insulated load switch is adopted for all switches with switch distribution box.

 

Model meaning

DFW 12 3 A
Enclosed switchgear Voltage class (kV) Number of circuits (total number of incoming and outgoing lines in one phase) A is with lightning arrester, and the default is without lightning arrester

 

Working conditions
◊ Ambient temperature: maximum temperature: + 40 ° C, minimum temperature - 30oC;
◊ Wind speed: equivalent to 34m / S (no more than 7oopa);
◊ Humidity: the average value of daily relative humidity shall not be greater than 95%, and the average value of monthly relative humidity shall not be greater than 95%;
◊ Shockproof: the horizontal acceleration shall not be greater than 0.4m/s2, and the vertical acceleration shall not be greater than 0.15m/s2;
◊ Inclination of installation site: no more than 3 °;
◊ Installation environment: the surrounding air is free from obvious pollution such as corrosive, combustible gas and steam, and there is no violent vibration at the installation site;
◊ Fully insulated and fully sealed structure, without insulation distance, reliably ensuring personal safety;
◊ Dustproof, flood resistant, corrosion-resistant and maintenance free. It can be used outdoors or immersed in water. It is suitable for any harsh environment;
◊ The combination is extremely flexible, with eight incoming and outgoing branches, meeting a variety of wiring requirements;
◊ Small volume, compact structure, simple installation and convenient operation;
200A cable can be used as a branch switch and can be pulled out with load.

 

Working conditions

Project Parameter
Rated voltage

12kV

Rated current

630A

Dynamic stable current

50kA/0.3s

Thermal stability current

20kA/3s

Imin power frequency withstand voltage

42kV

15 minute DC withstand voltage

52kV

Lightning impulse withstand voltage

105kV

Box protection grade

IP33

 

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