27.5（55）kv high voltage outdoor isolating switch-凯发k8国际首页登录

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27.5（55）kv high voltage outdoor isolating switch

product introduction

　application

gw4-27.5(55) isolating switch main technical parameter

no.	item		gw4-27.5（55）
1	rated voltage kv		27.5（55）
2	rated current a		630，1250，1600，2000
3	rated short-time withstand current and time ka/s		25/4
4	rated peak withstand current ka		63
6	lighting impulse withstand voltage kv	breaks	215（375）
		to earth、between	185（325）
7	1min.power frequency withstand voltage kv	breaks	95（160）
		to earth、between	85（140）
8	cut drag the capacitance current a		8
9	ice thickness　　　mm		10

railway
zn□-27.5（2×27.5）single-phase vacuum circuit breaker equipment

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