High-Quality ANSI 55-6 Pin Type Porcelain Insulator Manufacturers, Factories

  • ANSI 55-6 pin porcelain insulators are mainly used for medium voltage distribution lines.
  • Ceramic pin insulators are installed on the needle sockets on the cross arms of electric poles.
  • The upper end of the insulator is equipped with a groove, through which the wire passes and is tied to the insulator with a wire of the same material as the wire.
  • Capable of withstanding physical stress and environmental factors, prolonging service life.
  • Designed to perform under varities of weather conditions.

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Product Description

Dimensional Data
Spacing (S) 8 1/2 inch (140 mm)
Diameter (D) 8 3/8 inch (213 mm)
Leakage distance (C/D) 15 inch (381 mm)
Dry arcing distance 8 inch (203 mm)
Minimum pin height 7 1/2 inch (190 mm)
Mechanical Values
Combined M&E strength 3,000 lb (13.3 kN)
Electrical Values
Low frequency dry flashover voltage 100 kV
Low frequency wet flashover voltage 50 kV
Critical impulse flashover voltage, positive 150 kV
Critical impulse flashover voltage, negative 170 kV
Low frequency puncture voltage 135 kV
Type application voltage 23 kV
Radio-influence Voltage
RIV test voltage rms to ground 22 kV
Maximum RIV at 1000 kHz 100 μV
Corona visual lest P/C 18/22 KV
Packing Information
Approx. net weight per unit 9.1 lb (4.1 kg)
Pallet Quantity 144
Industry Standard(s)
Manufactured according to ANSI C29.5
Frequently Asked Questions
1. What industry standard does this insulator comply with?
This product is manufactured strictly according to the ANSI C29.5 standard, ensuring reliable performance in electrical distribution systems.
2. What is the mechanical strength rating for this unit?
The combined Mechanical and Electrical (M&E) strength is rated at 3,000 lb (13.3 kN).
3. What are the electrical flashover limits for wet and dry conditions?
The low frequency dry flashover voltage is 100 kV, while the low frequency wet flashover voltage is 50 kV.
4. What is the leakage distance of this insulator?
The leakage distance is 15 inches (381 mm), providing excellent surface tracking resistance.
5. How is the product packed for shipping?
Each unit has a net weight of approximately 9.1 lb (4.1 kg), and they are typically shipped in quantities of 144 units per pallet.
6. What is the maximum Radio-influence Voltage (RIV)?
At a test frequency of 1000 kHz, the maximum RIV is 100 μV with a test voltage of 22 kV rms to ground.

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