Pin Insulator

Product Overview:

Pin insulators are vital components in overhead power transmission and distribution systems. They are designed to support and insulate electrical conductors on utility poles, ensuring reliable and safe power delivery.

Technical Specifications:

● Material: Porcelain, glass, or composite polymer
● Voltage Rating: Typically ranges from 11 kV to 66 kV or higher
● Mechanical Load Capacity: Varies by design, typically up to 10 kN or higher
● Operating Temperature: -40°C to +60°C
● Creepage Distance: Designed according to pollution level and voltage class

Pin insulators are essential for the safe and efficient operation of overhead power and communication lines. Their robust construction, superior insulation properties, and ease of installation make them a dependable choice for utility companies and power infrastructure projects. With compliance to international standards and adaptability to various applications, pin insulators ensure reliable performance and long-term service.

Product Specification:

The correct requirements for installation of pin insulators are as follows:

1.The installation should be firm and the connection reliable to prevent water accumulation.
2.Before installation, dust, attachments and paint on the surface of the insulator should be removed.
3.There should be no compression at the connections with poles and wire fittings.
4.The spring pins, screws and nails on the tension string should be inserted from top to bottom.
5.The spring pins, screws and nails on the hanging string should be inserted towards the power receiving side, the lines on both sides should be inserted from inside to outside, and the center line should be inserted from left to right.
6.The gap between the insulator skirt and the live parts should be greater than 50mm.
7.After the suspension clamp is installed, the insulator string should be perpendicular to the ground plane. In special cases, the inclination angle along the line direction should be less than 5°, and the offset value should be less than 200mm.
8.When installing porcelain cross arm insulators, the top skew along the line should be less than 10mm, the top should be tilted upwards by 5° to 15°, and the skew should be less than 20mm.
9.The flat surface of the fixed iron bolt head of the pin insulator should be close to the component, and the porcelain head should not be skewed after tightening.
10.The threading directions of various hardware bolts, nails and spring pins on insulator strings, conductors and lightning protection lines should be consistent.

In addition, the appearance of the insulator should be inspected before installation to ensure that it is free of defects and that the model and specifications meet the requirements. When installing post-type insulators, flat pads and spring washers should be added. The voltage level of the insulator must not be lower than the rated voltage of the line, and the leakage distance should adapt to the contamination of the line. When installing post-type insulators, flat pads and spring washers should be added. The voltage level of the insulator must not be lower than the rated voltage of the line, and the leakage distance should adapt to the contamination of the line.