Product Description

57-2 Series Line Post Insulator

High voltage line post insulator 57-2 series are made of ceramic and are manufactured to ANSI standards. Porcelain insulator have passed ISO9001 SQA. Line post type insulator suitable for high voltage line insulation, the 57-2 series ceramic line post insulator includes 57-21,57-22,57-23,57-24,57-25.

MAIN DIMENSIONS AND STANDARD PARTICULARS
ANSI Class		57-21	57-22	57-23	57-24	57-25
Creepage Distance, mm		356	559	737	1015	1145
Dry Arcing Distance, mm		165	241	311	368	438
Cantilever Strength, kn		12.5	12.5	12.5	12.5	12.5
Low Frequency Flashover Voltage	Dry, kv	80	110	125	150	175
	Wet, kv	70	100	115	135	160
Critical Impulse Flashover Voltage	Pos., kv	130	180	210	255	290
	Neg., kv	155	205	260	340	380
Test Voltage to Ground, kv		15	22	30	44	44
Maximum RIV at 1000KHZ, μv		100	100	200	200	200
Net Weight, Each Approx., kg		7.5	10.5	12.7	16.8	19.5

Our Services

1. Small Orders Accepted
2. Fast producing time, Prompt Delivery
3. International Approvals
4. Reply promptly in 24 hours
5. Best Price

FAQ:

1. Q: How about payment terms?
A: 30% TT deposit + 70% TT before shipment,50% TT deposit + 50% LC balance, Flexible payment can be negotiated.
2. Q: Do you have some videos where we can see the line producing?
A: Yes, we can provide some videos for reference.
3. Q: Are you a Manufacture Factory?
A: Yes. We are the direct manufacture factory, and our factory has specialized in insulator ,arrester ,ABC cable fitting,cut out fuse, power fitting ,etc.
4. Q: How long is producing time ?
A: Normally it will take about 30 days for production.
5. Q: What is the standard of package ?
A: For small capacity, we use carton, but for big capacity, we will use strong wooden case for protection or double inner packs in a master carton.
6. Q: How do you make sure your good quality ?
A: We use the best raw material , and every single product will go through a series of strict test.

We warmly welcome friends both domestic and abroad to visit our company, if you have any questions, please contact with us directly.

Contact us if you need more details on Post in Line Insulator. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Line Post Type Insulator、High Voltage Line Insulation. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Porcelain Insulator > Line Post Insulator