Composite Post Insulators for Transmission and Substation

• Customization: Available
• Application: High-voltage
• Material: Composite Polymer
• Model NO.: Line Post Insulator
• Structure: Post Insulator
• Type: B Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Electrical Installation
• Connection Method: Spherical Type
• Size of Bearing Capacity: 40-550kn
• Certification: ISO9001
• Color: Grey
• Brand: Wishpower
• Transport Package: Box
• Specification: composite insulator
• Trademark: Wishpower
• Origin: China
• HS Code: 85469000
• Production Capacity: 50000 Pieces/Year

Product Description

Line Post Insulator is molded from a proprietary blend of gray, track and UV resistant, high density polyethylene. They are the lightweight alternative to traditional porcelain post insulators and are ideal for use with all types of construction using either bare or covered conductors.

Line Post Insulator Applications:

Line Post Insulators are used on overhead transmission lines operating at and under 69 kV. These insulators are commonly installed either vertically or horizontally on metal or wooden structures to support the conductor. Also, these insulators are used to support high voltage conductor jumpers or leads.

Line Post Insulator Features:

• Secure and reliable operation on high mechanical strength.
• Compact design and light in weight which is convenient for transportation.
• Good anti-vibration capability. Good anti-moisture capability.
• Good electric performances.
• High anti-aging performances which is perfect for utilization under conditions of high altitude.
• Easy for maintenance.

Line Post Insulator Specifications:

Customized according to customer needs

Wishpower professionally designs and manufacture the following products: composite insulators series used on HV transmission and distribution line, HDPE insulator,HDPE Pin insulator,composite insulators series used on electrified railway catenary flexible suspension section insulators used on the subway, rigid suspension insulators used on the subway, composite dry-type insulation capacitance bushing series, composite dry type transformer capacitance bushing series, composite dry type through-wall capacitance bushing series, composite housed zinc oxide arrester series, composite subway evacuation platform series, composite subway cable mounting bracket series, composite three-rail shield series used on electrified railway, composite insulation climb ladder series used on live working, high polymer interphase spacer, etc. electrical equipment.

Wishpower is a full-service supplier of power products, including insulator, fuse cutout, surge arrester and line construction hardware.

Raw Material / Parts Inspection

 

Silicone Rubber test
The produciton and inspection of Electric insulation silicone rubber
Silicone rubber standard: DL/T 376-2010
Electrical performance
1. Volume resistivity ≥1.0 X 10 Ω·m;
2.Surface resistivity ≥1.0 X 10 Ω;
3.Breakdown strength AC ≥20KV/mm, DC≥30KV/mm;
4.Tracking and electrical erosion ≥TMA4.5 grade;
5,Hydrophobicity satisfy the requirement on standard 6.2

Mechanical performance
1,Tearing strength(rectangularity)≥10kN/m;
2,Mechanical breaking strength ≥4MPa;
3,Tensile elongation ≥150%;
4,Shaw intensity ≥50Shore A;
5,Flammability≥ FV-0

Aging resistance
1. Ageing test for 1,000 hours

Metal Fitting test

Hardware inspection procedures:Ball and socket(IEC 60120):
1.Appearance
2.Dimension inspection
3.Zinc layer thickness inspection
4.Hardness inspection
5.go no-go gauge(ball and socket)
6.Locking system inspection

Fiberglass Rod / Tube test

Wish rods will be applied below test according to rod inspection processure
and IEC61109:
1.Appearance
2.Dimension inspection
3.Dye penetration test
4.Water difussion test
5.Stress corrosion test(acid-resistant rod)
6.Power frequency test
7.40kV/10mm oil puncture test