| Customization: | Available |
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| Application: | High-voltage |
| Material: | Composite Polymer |
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Audited Supplier Audited by an independent third-party inspection agency
Wuhan Line Power offer rubber post insulator for transmission line applications of various voltage classes up to and including 330kV. All of our insulators equip a one-piece, whole injection. This housing is formed onto the core by a compression molding process. Our design, manufacture, testing and quality control provide a unique products that is unparalleled.
| Type: | Horizontal Line Post |
| Minimum Order Quantity: | 500 pcs |
| Price: | Negotiable |
| Packaging Details: | plywood case, fumigated solid wood case |
| Delivery Time: | 45~50 days EX-works |
| Standard: | IEC 61109, ANSI C29.1 |
| End Fittings | Core | Sheds and Housing |
| Hot dip galvanized cast iron or cast steel | Epoxy & Glass fiber (ECR is available) |
HTV Silicone Rubber |
| Min. thickness of the galvanization: 86μm | Diameter(mm): Φ38, Φ40, Φ55, Φ70, Φ90, Φ120 | Color: Grey, Red |
| Typical Line Voltage (kV) |
Section Length (mm) |
Dry Arcing Distance (mm) |
Leakage Distance (mm) |
Specified Cantilever Load (SCL, kN) |
Max. Design Cantilever Load (MDCL, kN) |
1min. Power Frequency Withstand Voltage (Dry/Wet) (kV) |
Lightning Impulse Withstand Voltage (kV) |
| 69 | 950±30 | 717 | 2030 | 22.2 | 11.1 | 205/185 | 410 |
| 115 | 1090±30 | 870 | 2450 | 18 | 9 | 260/240 | 445 |
| 132 | 1274±30 | 1042 | 3202 | 17.5 | 7.4 | 325/275 | 560 |
| 145 | 1435±30 | 1210 | 3720 | 12 | 6 | 325/275 | 650 |
| 161 | 2130±30 | 1920 | 5800 | 9 | 4.8 | 504/464 | 1050 |
| 220 | 2926±40 | 2660 | 8680 | 6 | 3 | 466/420 | 1050 |
| 230* (core Φ90mm) |
2616±30 | 2280 | 7730 | 12 | 6.3 | 684/578 | 1131 |
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Item |
Requirement |
Measured Valued |
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Visual examination |
Fuchsine,grey or white, |
Ok |
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Hardness (shore A) |
≮50 |
65~70 |
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Tensile strength (Map) |
≮4 |
4~6 |
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Failure elongation (%) |
≮150 |
≮180 |
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Tearing strength (kN/m) |
≮10 (right angle sample) |
12~15 |
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Volume resistivity (Ω.m) |
1X1012 |
3~8X1012 |
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Puncture strength (kV/mm) |
Alternating current ≮22 |
≮30 |
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Tracking and erosion |
TMA4.5,erosion depth≯2.5mm |
TMA4.5, erosion depth <0.8mm |
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Flammability (Grade) |
FV-0 |
FV-0 |
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Sound Testing Equipment
The company is equipped with 1000kV Power Frequency Testing Transformer, 1800kV Impulse Voltage Generator set and 2000kN Automatic Tensile Test Machine, as well as well-equipped Physical Laboratory and Electrical Laboratory.
Advanced Manufacturing Equipments
The company holds the most advanced Automatic Silicone Injection Molding Machines and Voice-operated Displacement Crimping Machines which means the world's most advanced process technology level.
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.
Each insulator unit is marked with the name or trade mark of the manufacturer and the year of manufacture in accordance with IEC 61952 and means to ensure a system of trace-ability for each of the component parts. In addition, each insulator unit is marked with the specified mechanical failing load in conformity with lEC 61952 and client' requirements.
1. Q: Are you the factory or trading company?
A: We are factory who was founded in 2008. We also source all the items for the clients.
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. 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 test etc.
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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