Hot New Products 20nf250 Transformer Bushing - ANSI 57series Porcelain Line Post Insulator for Transmission – Johnson

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Good quality comes to start with; service is foremost; organization is cooperation" is our enterprise philosophy which is regularly observed and pursued by our firm for 53-1 Spool Insulator, 11kv Stay Ceramic Insulator, U40b Suspension Porcelain Insulator, We have confident that we can provide the high quality products at resonable price, good after-sales service to the customers. And we will create a bright future.

Hot New Products 20nf250 Transformer Bushing - ANSI 57series Porcelain Line Post Insulator for Transmission – Johnson Detail:

Line post type porcelain insulators
ANSI Class		57-1	57-2	57-3	57-4	57-5
Dimensions
Creepage distance	mm	356	559	737	1015	1145
Dry arcing distance	mm	165	241	311	368	438
Mechanical Values
Cantilever strength	kn	12.5	12.5	12.5	12.5	12.5
Cantilever strength routine test	kn	5	5	5	5	5
Electrical Values
Type application voltage	kv	25	35	45	55	66
Low frequency dry flashover voltage	kv	80	110	125	150	175
Low frequency wet flashover voltage	kv	60	85	100	125	150
Critical impulse flashover voltage,positive	kv	130	180	210	255	290
Critical impulse flashover voltage,negative	kv	155	205	260	340	380
Radio influence Voltage Data
Test voltage RMS to ground	kv	15	22	30	44	44
Maximum RIV at 1000kHz	μv	100	100	200	200	200
Packing and Shipping Data
Net weight,approximate	kg	5.2	9.0	11.0	16.0	18.0

Line post type porcelain insulators
ANSI Class		57-11	57-12	57-13	57-14	57-15
Dimensions
Diameter	mm	102	102	102	102	102
Height	mm	260	324	400	480	543
Creepage distance	mm	356	559	737	1015	1145
Dry arcing distance	mm	165	241	311	368	438
Mechanical Values
Cantilever strength	kn	12.5	12.5	12.5	12.5	12.5
Cantilever strength routine test	kn	22	22	22	22	22
Electrical Values
Type application voltage	kv	25	35	45	55	66
Low frequency dry flashover voltage	kv	80	110	125	150	175
Low frequency wet flashover voltage	kv	60	85	100	125	150
Critical impulse flashover voltage,positive	kv	130	180	210	255	290
Critical impulse flashover voltage,negative	kv	155	205	260	340	380
Radio influence Voltage Data
Test voltage RMS to ground	kv	15	22	30	44	44
Maximum RIV at 1000kHz	μv	100	100	200	200	200
Packing and Shipping Data
Net weight,approximate	kg	6.8	10.0	11.8	16.5	18.6

57-14 57-13 222 ANSI 57series Porcelain Line Post Insulator for Transmission

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Our personnel are generally within the spirit of "continuous improvement and excellence", and using the excellent top quality goods, favorable rate and superior after-sales expert services, we try to win every customer's believe in for Hot New Products 20nf250 Transformer Bushing - ANSI 57series Porcelain Line Post Insulator for Transmission – Johnson, The product will supply to all over the world, such as: Madagascar, Colombia, Hanover, We have a dedicated and aggressive sales team, and many branches, catering to our customers. We are looking for long-term business partnerships, and ensure our suppliers that they will definitely benefit in both short and long run.

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This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.