Specifications

220KV Composite cross- arm used insulators are applicable to urban power network reconstruction where streets are narrow.

 

220KV  Composite cross- arm used insulators are applicable to urban power network reconstruction where streets are narrow. It can take advantage of urban narrow power distribution corridor, lower the necessary height of the pole or tower. With high bending strength, they can avoid rupture accident taken place for porcelain insulators. moreover, they are all good pollution resistance.

Size and technical data of pin insulators
Type	Central distance between channel and installation hole (mm)	Min. electric arc distance (mm)	Min norminal creepage distance (mm)	Installation hole dismeter (mm)	Rated bent withstand load (KN)	1 min power frequency wet withstand voltage (KV)	Full wave lightning impulse withstand voltage (peak value)           (KV)
FSW-10/2.5	390	274	362	18	2.5	45	165
FSW-10/5	400	280	410	18	5	50	185
FSW-35/5	620	490	1060	22	5	100	265
FSW-66/10	890	735	1815	23	6	185	410
FSW-100/10	1240	1070	3180	24	10	230	550