HDFW tyoe European cable branch box/Switch Box with switch, it is the device that belongs to ring network type and is equipped with SF6 load switch, and also is the high voltage complete capacitance equipment that comprises high-performance SF6 load switch filled with SF6 insulation gas and touchable sherlded type cable equipment of synthetic rubber. It is suitable for connecting and tapping the cable, and transferring and distributing electric energy of cable network. Because its built-in SF6 load switch can break the load current directly, it is obvious that the reliability of power supply can be improved greatly

 

Rated voltage	12 KV	Power frequency withstand voltage of secondary circuit	2 KV/1 min
Rated current	630 A	Negative polarity DC withstand voltage	52 KV/15 min
Rated short-time withstand current	20 KA/3 s	Protection level of enclosure	less than 10 PC/ 15KV
Rated peak withstand current	50 KA	Frame protection grade	IP 44
Power frequency withstand voltage (virtual value)	42 KV/1min	Applicable cable sectional area	≤ 400 mm2
Lightning impulse withstand voltage	75 KV