General Specification for Insulation
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Summary

This series products are composed of glass fiber epoxide resin core rod, silicon rubber and metal fittings.As the silicon rubber shed is made with the high-pressure full-seal injection technology, the key problem— interface electric breakdown that influences the reliability of composite insulartor is fully solved.Connection of the glassfiber rod and metal riflings, adopts the pressure welding technique of the international advanced level, and have the full automatic sound wave detection of defects system, high intension, beautiful outline, small volume, light weight and the metal fitting of galvanization is of corrosion-proof and can be exchanged used with porcelain insulator, this product has reliable structure, cannot damage the core rod, and take full advantage of the mechanical strength.

Ambient condition

1. Altitude: ≤ 1500m;
2. Ambient temperature: -40℃ ~+40℃ ;
3. AC power frequency: ≤ 100Hz
4. Earthquake intensity: ≤ 8 grade;
5. Wind speed: ≤ 35m/s

Prduct performance

1. Good electrcal specification, strong mechanical strength, tensile bending intension of the epoxy glassfiber rod of internal Ioadbearing is double than normal rolled products, 8~10times of high strength porcelain material, improves the reliaility of safe operation.
2. Fine anti-pollution, strong prevent flash accident, and the wet withstand voltage and pollution withstand voltage is 2~2.5times than the same creepage distance procelain insulator, and need not to be cleaned, can be operated in the serious pollution areas.
3. Small volume, light weight(only for the same voltage grade of porcelain insulator 1/6-1/9), lights structure, easy for transportation and installation.The shed has favorabole waterproof performance, the structure protects the internal insulation from wet, not need to make prerentative insulation test or clean it.
4. Good sealing performance, strong anti-ageing, corrosion proof, Iow-temperature proof performance, reach the levelis TMA4.5class, is applied to -40℃~+50℃ areas, They have strong resistance to impact, with advantages of creep resistance, unbrdakable, anti-bend, high anti-bend strength, ability of with standing internal, force and strong explosion proof, can be exchanged with porcelain glass insulator.
5. Composite insulator series, whose mechanical performance are better than porcelanin insulator, has large tolerance of safe operation, It is the renew product for electric power line.

Model

Production Technological Process Of Composite Insulator

A Cleaning fittings, drying the core rod and polishing.
B Crimping connection
C Degreasing, preheating and coating with coupling agent
D Integral injection seal molding
E Appearance examination and renovation
F Additional vulcanization
G Delivery test and sampling test
H Mounting the nameplate in the qualified products
I Packing and placing the products in store

Raw material incoming inspection item

Core rod
1.Strong light examination(full examination)；
2.Slight porosity and water spreading test；(sampling inspection)
3.Power frequency withstand test(full inspection)
4.Tension failure load test Fitting
1.Zine coating measurement
2.Go/no-go inspection

Compounded stock
1.Hardness
2.Leakage tracking and electrical erosion property
3.Dielectric constant test

Locking pin
1.Operation test of locking pin

Product one-by-one test item

1.Appearance inspection
2.Test of withstanding at 50% of rated mechanical load for 10s
3.Power frequency withstand voltage test

Product sampling inspection item

1.Dimension & creepage distance inspection
2.Zinc coating
3.Operation test of locking pin
4.Test of withstanding 100% of rated mechanical load for 1 min
5.Steep wave impulse test