ANSI high voltage 57-11 line post insulator

57-11 post porcelain insulator 1)Material porcelain 2)ANSI standard 3)OEM and ODM are available 4)Nice price   ANSI high voltage 57 series line post insulator COWINELEC has series of products and more than 400 varieties of different specifications. The main products of the plant are solid-core past insulators with 330KV and below. Power station, electric switch procelain jacket with 35KV and below, high voltage transmission lines type insulator, hanging type and rod type insulator. Electric locomotive and all kinds of procelain electrified railway. 

In addition to using international standards or IEC standard to produce, we can also supply according to customer requirements by ANSI,DIN,BS,JIS and other countries standard.

We also special according to your drawing, pls send us details.

  ANSI  high voltage 57-11 line post insulator 

ANSI Class	57-21	57-22	57-23	57-24	57-25	57-11	57-12	57-13	57-14	57-15
Creepage distance (mm)	356	559	737	1015	1145	356	559	737	1015	1145
Dry arcing distance (mm)	165	241	311	368	438	165	241	311	368	438
Cantilever strength (kN)	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5
Low frequency dry flashover (kV)	80	110	125	150	175	80	110	125	150	175
Low frequency wet flashover (kV)	70	100	115	135	160	60	85	100	125	150
Critical impulse flashover, Pos (kV)	130	180	210	255	290	130	180	210	225	290
Critical impulse flashover, Neg (kV)	155	205	260	340	380	155	205	260	340	380
Test voltage to ground (kV)	15	22	30	44	44	15	22	30	44	44
Maximum RIV at 1000KHz (μV) 1000KHz	100	100	200	200	200	100	100	200	200	200
Net weight, approx (kg)	7.5	10.5	12.7	16.8	19.5	6.8	10	11.8	15.9	18.6

   

ANSI high voltage 57-11 line post insulator