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Home > Products > Porcelain Insulator > Station Post Insulator > Porcelain Station Post Insulator TR-278
Porcelain Station Post Insulator TR-278
  • Porcelain Station Post Insulator TR-278

Porcelain Station Post Insulator TR-278

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

Basic Info

Model No.: TR-278

Application: High-voltage

Structure: Post Insulator

Usage: High Voltage Power Transmission

Connection Method: Trough Type

Certification: SGS, ISO9001

Color: Brown , Light Grey

Place Of Origin: Fuzhou,China

HS Code: 85462090

Material: Porcelain

Additional Info

Packaging: Carton, Wooden case, Sack

Transportation: Ocean,Land


Product Description

Porcelain Station Post Insulator TR-278

1.Post insulator material is porcelian, the post cover is glazed.

1. This insulator is solid-core station post insulators.
2. Type for Station Post Insulator is TR-231,TR-267, TR-278, TR-286, TR-288, TR-308
3. Standard: comply with the ANSI standard C29.9
4. Color of station post insulator TR-278:brown or light gray

ANSI Class TR-278
Creepage Distance/mm 1829
Cantilever Strength/kn 13.3
Tensile Strength/kn 111.2
Torsional Strength/k.m 4.52
Compression Strength/kn 267
Low Frequency Flashover Voltage Dry /kv 235
Wet/kv 180
Critical Impulse Flashover Voltage Pos/kv 390
Neg/kv 475
Low Frequency Withstand Voltage Dry/kv 175
Wet/kv 145
Impulse Withstand Voltage/kv 350
Net Weight/kg 37.5
Applicable Standard ANSI C29.9

post insulator diagram

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, Cold And Heat Shrinkable Tube,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 Post Insulator Cover Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Post Insulator Diagram are quality guaranteed. We are China Origin Factory of Post Insulator Material. If you have any question, please feel free to contact us.

Product Categories : Porcelain Insulator > Station Post Insulator

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