High-Quality ANSI 53-5 Spool Insulator Suppliers, Factory

High-Quality Low Voltage ANSI 53-5 Ceramic Spool Insulator

  • The spool type insulator has two or more umbrella edges, with wires tied in the middle of the upper and lower umbrella edges, a central perforation, and fixed to the cross arm or clamp plate with threading nails.
  • Spool insulators are used with spool bolts (upset bolts), insulator clevises and secondary racks for neutral and secondary applications. Industry slang is pineapple

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Product Description

Dimensional Data

Spacing (S) 4 1/5 inch (105 mm)
Diameter (D) 4 inch (102 mm)

Mechanical Values

Combined M&E strength 6,000 lb (27.3 kN)

Electrical Values

Low-frequency dry flashover voltage 35 kV
Low-frequency wet flashover, vertical 18 kV
Low-frequency wet flashover voltage, horizontal 26 kV

Packing Information

Approx. net weight per unit 1.2 kg

Industry Standard(s)

Manufactured according to ANSI C29.3
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Frequently Asked Questions

What are the dimensions of this spool insulator?

This insulator features a spacing (S) of 4 1/5 inches (105 mm) and a total diameter (D) of 4 inches (102 mm).

What is the combined mechanical and electrical (M&E) strength of the unit?

The combined mechanical and electrical strength limit is rated at 6,000 lb (27.3 kN).

What are the electrical wet and dry flashover voltages?

The dry flashover voltage limit is 35 kV. The wet flashover limits are 18 kV when positioned vertically and 26 kV when positioned horizontally.

What standard was this insulator manufactured under?

The insulator is manufactured in compliance with the ANSI C29.3 industry standard.

What is the net weight of each individual unit?

Each unit has an approximate net weight of 1.2 kg.

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