Product description

DFW cable branch box is designed for outdoor maintenance free operation, safe and reliable and its protection degree reaches IP33. The underground branch connector is anti-flood. It is widely used in urban industrial district, residential district, commercial center, mining area, large scale enterprises such as steel, automobile, petroleum, chemical industry, cement, and other occasions, It is particularly suitable for urban power grid reconstruction project, which can greatly save the investment of electrical equipment and cables, and improve the reliability of power supply. This equipment complies with the requirements of  standard IEC62271-200,IEC62271-100 etc.

Main new advantages

● Small size, compact structure, easy to install and operate
● Stainless steel or metal steel board ,which thickness ≥ 2mm
● Anti-corrosion & with special Spray-painting artworks
● Usage life more than 30 years.
● It can be used in some harsh environments like high or lower temerature ,some dust area
● Fully sealed structure,without insulation distance
● High voltage electric parts with cable connector or use silicon rubber for people safety.
● With zno arrester
● Its cables can be splitted into be 7 branches to work together with SF6 loading switches to reach net power-supplying.
● The cable connector can be used as switch, it can be on or off with loading. The max on-off voltage can reach 200Amp.
● After fix the fault indicator, user can test circuit fault very quickly
● Cheaper cost ,save cable
●Cable connectors comply with IEEE386 standard,all cables are suitable for crosslinking polyethylene insulated cables.

Main technical parameter
 

No	Item	Unit	Data
1	Rated voltage	kV	12kV	24kV	36kV
2	Rated current	A	630
3	Rated short-time withstand current	kA	20/3s
4	Dynamic stable current	kA/0.3s	50
5	Thermally stable current	kA/3s	20
6	Power frequency withstand voltage/1min	kV	42	55	85
7	Lightning impulse withstand voltage	kV	75/85	125/150	170/185
8	Partial discharge test		Less than 9kV	Less than 15kV	Less than 45kV
			Discharge amount: ≤10PC	Discharge amount: ≤10PC	Discharge amount: ≤10PC
9	Enclosure protection class		IP44