Composite Station Post Insulators
Product Description
In the early years, station post insulators were mostly used for telegraph poles. With the development of science and technology, a lot of disc-shaped insulators were hung at one end of the high-type high-voltage line connection tower, which was to increase the creepage distance.Insulators play two basic roles in overhead transmission lines, that is supporting conductors and preventing current from returning to the ground. These two roles must be guaranteed. Insulators should not fail due to various electromechanical stresses caused by changes in the environment and electrical load conditions, which will damage the operating life of the whole line.
Technology characteristics:
Better hydrophobicity
Better hydrophobicity migration performance
Better pollution resistance
Excellent electrical insulation properties
Excellent aging resistance
| Item |
Requirement |
Measured Valued |
| Visual examination |
Fuchsine, grey or white, no obvious mechanical admixture. Vulcanized silicon rubber with dense and smooth cutting surface. |
Ok |
| Hardness (shore A) |
≮50 |
65~70 |
| Tensile strength (Map) |
≮4 |
4~6 |
| Failure elongation (%) |
≮150 |
≮180 |
| Tearing strength (kN/m) |
≮10 (right angle sample) |
12~15 |
| Volume resistivity (Ω.m) |
1X1012 |
3~8X1012 |
| Puncture strength (kV/mm) |
Alternating current ≮22 |
≮30 |
| Tracking and erosion |
TMA4.5,erosion depth≯2.5mm |
TMA4.5, erosion depth <0.8mm |
| Flammability (Grade) |
FV-0 |
FV-0 |
- Corrosive Resistance Fiberglass Core
Excellent resistance to high temperature, stress corrosive & acid attack
Better damping Performance
High tensile strength (>1200Mpa)
Excellent creep resistance
Excellent anti-fatigue fracture properties
- Crimping & Multiple Sealing
High mechanical strength
Small dispersion
Reliable sealing performance between rods and end fittings
Certifications
STANDARDS:
IEC 61109, ISO 45001, ISO 14001, etc. We can design products in accordance with Client's Requirements.
Packaging & Shipping
PACKAGING
All insulators are packed in weatherproof containers in order to protect the products during land, air and sea transportation. Several different grades of packaging can be offered depending on the mode of transport and the expected storage conditions. Special packaging arrangements can be accommodated upon the users' request.
Company Profile
About US
Wuhan Line Power transmission and transformation co., LTD. Mainly produces and sells composite insulators and accessories. Is a collection of manufacturing, processing, distribution and other business as one of the manufacturing company. The company is based on the r&d, manufacturing and sales of the complete set of composite insulator equipment.With excellent product quality, reasonable price and good service for the enterprise, won the majority of customers praise and trust.
Factory Direct
Quality Control:
FAQ:
1. Q: Are you the factory or trading company?
A: We are factory who was founded in 2008, and we also sourcing related items for the client.
2. Q: What're your main products?
A: insulators, the hardware of all kinds for high-voltage applications and related products.
3. Q: Can I get some samples?
A: Yes, sample order is available for quality check and market test.
4. Q: What's your payment terms?
A: We usually accept :Payment Term: 30% T/T after order confirmed, balance 70% before shipment. And L/C is also available.
5. Q: How can you control your quality?
A: For each production processing, we have a complete QC system for the chemical composition, physical and electrical properties. After production, all the goods will be tested according to related standards, and the ex-factory test reports will be sent along with shipment documents.
6. Q: Does your company accept customization?
A: We accept OEM service.
7. Q: What's your warranty terms?
A: We offer 24 months warranty terms.
8. Q: Do you have the products in stock?
A: Depends on your request, we have standard models in stock. Some special product and big order will be newly produced according to your order.
9. Q: What do you have for the certificate?
A: ISO9001, ISO14001, ISO45001 Type testetc.
10. Q: How to become the agents for Line?
A: We welcome you to be Line's agent.
We will depend on the sales turn over and also do research on your market. If you have interest, let us discuss more!
11.Q: Can we visit your company?
A: Yes, for sure, you are welcome to visit our company.
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