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Home > Products > Porcelain Insulator > Line Post Insulator > ANSI 57-11 porcelain line post insulator
ANSI 57-11 porcelain line post insulator
  • ANSI 57-11 porcelain line post insulator

ANSI 57-11 porcelain line post insulator

    Payment Type: L/C,T/T
    Incoterm: FOB,CFR,CIF
    Min. Order: 1000 Piece/Pieces
    Delivery Time: 30 Days

Basic Info

Model No.: 57-11

Material: Porcelain

Certification: SGS, ISO9001

Additional Info

Packaging: Carton, Wooden case, Sack

Transportation: Ocean,Land


Product Description

Electrical post insulators are suitable for temperatures between -40° C to +40° C, 33kv Post Insulator of the heights below 1000m (1000m and above can be amend base on GB311.1-1997), frequencies not exceeding 100Hz, voltages above 1000V, and mechanical loads within the rated values of the brown porcelain insulators.

1. ANSI Class : 57-11
2. Creepage Distance, mm : 356
3. Dry Arcing Distance, mm: 165
4. Cantilever Strength, kn: 12.5
5. Low Frequency Flashover Voltage Dry, kv: 80
6. Low Frequency Flashover Voltage Wet, kv: 60
7. Critical Impulse Flashover Voltage Pos,kv : 130
8. Critical Impulse Flashover Voltage Neg,kv : 155
9. Test Voltage to Ground, kv : 15
10. Maximum RIV at 1000KHZ, μv : 100
11. Net Weight, Each Approx., kg : 6.8



Our Services

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


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 Porcelain Insulator,Composite Insulator,Glass Insulator,arrester, Cut Out Fuse and 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.

porcelain insulator

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 Brown Porcelain Insulators Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the 33kv Post Insulator are quality guaranteed. We are China Origin Factory of Electrical Post Insulators. If you have any question, please feel free to contact us.

Product Categories : Porcelain Insulator > Line Post Insulator

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