Specifications 1,Suit for 500V50Hz outdoor power distribution lines

2,Isolate Switch(500V),Low Voltage Isolate Switch

Key words : Switch,Isolate Switch,High Voltage Isolate Switch and so on Rated voltage:500V Rated current:400A-800A-1250A ? General description?: JDJ?series of outdoor low-voltage fuse type isolating switch (hereinafter referred to as isolating switch), widely used in rural power transformer low voltage side outlet, branch feeders, are affixed to implement fuse replacement products. Under certain conditions, can be divided into a small load off, and Closing overhead lines and transformers. Isolation switch prevent low back supply, reduce power outage area, ensure the maintenance personnel safety, improve reliability and avoid high-altitude operations, more great significance ? The basic conditions of use isolation switch: ? Altitude:≤2000m Ambient air temp.:upper limited +40oC,lower limited -25oC Eathquake intensity ≤8° The ground have not fire,exposion danger,seriously nasty,chemical etch and serious shake ? The main technology parameter: ?

Type Number	Rated voltage(KV)	Rated current(A)	4S heat-stability current(A)	Machine-stability current(A)	Impulse current(KV)		Frequency voltage(KV)
					Phase to ground	Breaking	Phase to ground	Breaking
? ? JDJ-0.5	? ? 0.5	?	? ? 1250	? ? 3150	? ? 4	? ? 5	? ? 2	? ? 3
		400
		500
		600
		800
		1000