57- 1 Series Line Post Insulator

57-1 series porcelain Line Post Insulator can be installed horizontally and vertically on the support structure, with long service life, the post power line insulator made of inorganic materials, and will not age. we also have sale Ceramic Line Post Insulator of 57-2 Series Line Post Insulator.

Condition Of Use

1. Ambient Temperature: -40° C to +40° C
2. Altitude: Do not exceed 1000m; (1000m and above can be amend base on GB311.1-1997)
3. Frequency: Do not exceed 100Hz
4. Nominal voltage: above 1000V

5. Mechanical Load: Do not exceed the rated value of each product

6.Test Voltage to Ground, kv

MAIN DIMENSIONS AND STANDARD PARTICULARS
ANSI Class	57-11	57-12	57-13	57-14	57-15
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
Low Frequency Flashover Voltage Wet, kv	60	85	100	125	150
Critical Impulse Flashover Voltage Pos,kv	130	180	210	255	290
Critical Impulse Flashover Voltage 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	6.8	3	11.8	15.9	18.6

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,Cut Out Fuse,Abc Cable Fitting , 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.

Looking for ideal Post Power Line Insulator Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Porcelain Line Post Insulator are quality guaranteed. We are China Origin Factory of Ceramic Line Post Insulator. If you have any question, please feel free to contact us.

Product Categories : Porcelain Insulator > Line Post Insulator