70kn Porcelain Disc Suspension Insulators U70b

Product classification:

Suspension porcelain insulators

Keywords:

Pin type insulators

Product Features

Product details

Ball and socket type suspension porcelain insulators( ANSI Class )
ANSI Class		52-3	52-5	52-8	52-11
Coupling size		Type B	Type J	Type K	Type K
Dimensions
Diameter(D)	mm	254	254	254	280
Spacing(H)	mm	146	146	146	155
Creepage distance	mm	320	320	320	380
Dry arcing distance	mm	197	197	197	216
Mechanical Values
Combined M&E strength	kN	67	111	178	222
Dry arcing distance	mm	197	197	197	216
Impact strength	N.m	6.2	10	11.3	11.3
Routine proof test load	kN	33.3	55.5	89	111
Time load test value	kN	44.5	67	107	134
Maximum working load	kN	33.3	55.5	89	111
Electrical Values
Low frequency dry flashover voltage	kV	80	80	80	80
Low frequency wet flashover voltage	kV	50	50	50	50
Critical impulse flashover voltage,positive	kV	125	125	125	125
Critical impulse flashover voltage,negative	kV	130	130	130	130
low frequency puncture voltage	kV	110	110	110	110
Radio influence Voltage Data
Test voltage RMS to ground	kV	10	10	10	10
Maximum RIV at 1000kHz	μv	50	50	50	50
Packing and Shipping Data
Net weight,approximate	kg	4.7	5.2	7.8	9.7

Product Message

图片ALT信息： Jiangxi Johnson Electric Co., Ltd

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