Ceramic Pole Top Pin Insulator Schematic

Pole top insulator pin is 20 length and includes 1 3 8 semi conductive nylon insulator thread.

Ceramic pole top pin insulator schematic.

Pin type insulators pin type insulators or pin insulators are popularly used in electric distribution systems up to 33 kv voltage level. Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires. There are several types of insulators in transmission lines but the most commonly used are pin type suspension type strain insulator and shackle insulator. Two 11 16 mounting holes are spaced 8.

Vise top insulators are molded from a proprietary blend of gray track resistant high density polyethylene. They are mounted directly on the pole or crossarm and bolted in place. Manufactured per ansi c135 22. There is a groove on the upper end of a pin insulator for housing the conductor.

Post insulators are one piece solid or hollow core porcelain columns with multiple petticoats or skirts from top to bottom. Rus listed b pin pole top steel. Their performance was superior to pin type insulators and by the 1960 s they found widespread use on power lines everywhere. Hendrix vise top insulators are pin type insulators that incorporate a clamping mechanism into the top of the insulator to provide quick and easy conductor installation without the need for additional tie products.

The part sec tion of a pin type insulator is shown in fig. Galvanized per astm a 153. In north america glass was always the predominate material for communications insulators but porcelain has become the standard for power distribution due to its greater strength and surface resistance. There is a.