High-Quality SHF-20G1 Pin Insulator Manufacturer, Supplier

  • ST-20J pin insulators are primarily used in overhead distribution lines with voltages of 20kV and below.
  • Their core function is to support and secure conductors, isolating the live wires from the grounded pole structure.
  • They are installed vertically by screwing the base onto a metal or wooden "pin-type" base (pin) fixed to a wooden or concrete pole.

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Product Description

Dimensional Data

Spacing (S) 224 mm
Max. shed Diameter (D) 175 mm
Creepage distance (C/D) 400 mm

Mechanical & Electrical Specifications

Electronical Failing Load 13 kN
Power-frequency dry withstand voltage 85 kV
Power-frequency wet withstand voltage 65 kV
Power-frequency puncture voltage 190 kV
Rated voltage 20 kV
Lightning impulse withstand voltage 135 kV

Packing & Logistics

Approx. net weight per unit 4.4 kg
Carton Quantity 6 units
Pallet Quantity 180 units
Industry Standard(s)
Manufactured according to IEC-60383-1

Frequently Asked Questions

What is the rated voltage for this product?
The product is designed with a rated voltage of 20 kV.
What international standard does this insulator follow?
This product is manufactured in strict accordance with the IEC-60383-1 industry standard.
What is the creepage distance?
The total creepage distance for this model is 400 mm.
How is the product packaged for bulk shipping?
Each carton contains 6 units, and a full pallet accommodates 180 units for efficient logistics.
What are the lightning impulse withstand capabilities?
The insulator is tested to withstand a lightning impulse voltage of up to 135 kV.
What is the weight of a single unit?
Each unit has an approximate net weight of 4.4 kg.

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