2021 wholesale price Vintage Telephone Insulators - Overhead line Suspension Pin Insulator Glass Insulator – Chuan Ding

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High Voltage Disc Type Porcelain Insulator Ceramics Insulator

Model Number: OEM

Material: Porcelain, ceramics

Insulator type:disc insulator

Application: High Voltage

Usage: Insulation Protection

Color: brown

Certification: ISO9001/IEC

Sample: Sample Available

Description:

Disc insulators are also called suspension insulators. They are actually a piece of ceramic or glass with steel caps and iron feet at the upper and lower ends, which can be used in series.

Suspended insulators are generally made of insulating parts (such as porcelain and glass) and metal accessories (such as steel feet, iron caps, flanges, etc.) glued or mechanically clamped with glue. Insulators are widely used in power systems, generally belong to external insulation, and work under atmospheric conditions. Overhead transmission lines, busbars of power plants and substations, and external live conductors of various electrical equipment must be supported by insulators and insulated from the ground (or ground) or other conductors with potential differences.

Usage:

As one of the important equipment of transmission lines, suspension insulators are responsible for the suspension of conductors and the insulation of iron towers. The suspension porcelain insulators produced are used on high-voltage, extra-high voltage and ultra-high voltage transmission lines around the world, and are used for transmission lines in various countries Safe operation provides reliable version guarantee.

Suspended porcelain insulators are divided into two types: insulators for AC systems and porcelain insulators for DC systems.

Specifications:

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SUSPENSION INSULATORS NORMAL TYPE DISC SUSPENSION PORCELAIN INSULATORS (IEC) Class U40C U40B U70BL U70C U70BS U70BL Fig. No. 1 2 3 4 3 3 Unit Spacing(H)-mm 140 110 146 146 127 146 Nominal Diameter(D)-mm 190 175 255 255 255 255 Coupling size 　– 11 16AVB 16C 16A 16A/168 Nominal Creepage Distance-mm 200 185 295 295 295 320 Rated E&M Failing Load-KN 40 40 70 70 70 70 Routine Tensile Load-KN 20 20 35 35 35 35 Impact Strength-N.m 5 5 6 6 6 6 Power-Frequency Withstand Wet-KV 30 30 40 40 40 40 Dry-KV 55 55 70 70 70 70 Dry Lighting Impulse withstand Voltage-KV 75 75 110 110 110 110 Power-Frequency Puncture Voltage-KV 90 90 110 110 110 110 Radio Interference Test Voltage to Ground-KV 7.5 7.5 10 10 10 10 Voltage Max. RIV at 1MHz-uV 50 50 50 50 50 50 Weight-kg 2.5 2.4 4.8 4.7 4.7 5

Packing and Shipping

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