High-Quality ANSI 55-3 Pin Type Porcelain Insulator Suppliers, Factory

  • ANSI 55-3 Low and Medium Voltage Pin Type Porcelain Insulator.
  • Supports low to medium voltage lines.
  • Capable of withstanding physical stress and environmental factors, prolonging service life.
  • Designed to perform under varities of weather conditions.
  • Ideal for both urban and rural power distribution networks.

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Product Description

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Dimensional Data

Spacing (S) 3 3/4 inch (95.3 mm)
Diameter (D) 4 4/5 inch (120.6 mm)
Leakage distance (C/D) 7 inch (178 mm)
Dry arcing distance 4 1/2 inch (114 mm)
Minimum pin height 5 inch (127 mm)
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Mechanical Values

Combined M&E strength 2,500 lb (11.1 kN)

Electrical Values

Low frequency dry flashover voltage 55 kV
Low frequency wet flashover voltage 30 kV
Critical impulse flashover voltage, positive 90 kV
Critical impulse flashover voltage, negative 110 kV
Low frequency puncture voltage 90 kV
Type application voltage 11.5 kV
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Radio-influence Voltage

RIV test voltage rms to ground 10 kV
Maximum RIV at 1000 kHz 50 μV
Corona visual lest P/C 18/22 KV
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Packing Information

Approx. net weight per unit 1.08kg (2.4 lb)
Pallet Quantity 810 units
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Industry Standard(s)

  • Manufactured according to ANSI C29.5

Frequently Asked Questions

Q: What industry standard does this product comply with? A: This product is manufactured in strict accordance with the ANSI C29.5 standard.
Q: What is the mechanical strength rating of this unit? A: The combined Mechanical and Electrical (M&E) strength is rated at 2,500 lb (11.1 kN).
Q: What are the electrical flashover voltage limits? A: The low frequency dry flashover voltage is 55 kV, and the wet flashover voltage is 30 kV.
Q: How much does a single unit weigh? A: Each unit has an approximate net weight of 1.08 kg (2.4 lb).
Q: What is the standard packaging quantity for bulk orders? A: The standard pallet quantity for this product is 810 units.
Q: What is the dry arcing distance for this design? A: The specified dry arcing distance is 4 1/2 inches (114 mm).

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