High-Quality ANSI 55-5 Porcelain Pin Type Insulator Manufacturer, Factory

  • ANSI 55-5 Pin Type Ceramic/ Porcelain Insulator with Pin Spindle
  • ANSI 55-5 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.
  • Needle insulators are suitable for transmission and distribution lines with voltages up to 33 kV. When the working voltage exceeds 33 kV, the pin type insulators become too bulky and hence uneconomical.

ANSI 55-5 1 (7).jpg

Product Description

1

Dimensional Data

Spacing (S) 7 7/8 inch (124 mm)
Diameter (D) 7 inch (178 mm)
Leakage distance (C/D) 12 inch (305 mm)
Dry arcing distance 6 1/4 inch (159 mm)
Minimum pin height 6 inch (152 mm)
2

Mechanical Values

Combined M&E strength 3,000 lb (13.3 kN)
3

Electrical Values

Low frequency dry flashover voltage 80 kV
Low frequency wet flashover voltage 45 kV
Critical impulse flashover voltage, positive 130 kV
Critical impulse flashover voltage, negative 150 kV
Low frequency puncture voltage 115 kV
Type application voltage 15 kV
4

Radio-influence Voltage

RIV test voltage rms to ground 15 kV
Maximum RIV at 1000 kHz 100 μV
Corona visual test P/C 18/22 KV
5

Packing Information

Approx. net weight per unit 6.4 lb (2.9 kg)
Pallet Quantity 336 units
6

Industry Standard(s)

Manufactured according to:

ANSI C29.5
Frequently Asked Questions
Q: What is the combined mechanical and electrical strength of this unit?
A: The combined M&E strength is rated at 3,000 lb or 13.3 kN.
Q: Which industry standard was used for manufacturing?
A: This product is manufactured in strict accordance with the ANSI C29.5 standard.
Q: What are the primary dimensions for spacing and diameter?
A: The spacing (S) is 7 7/8 inches (124 mm) and the diameter (D) is 7 inches (178 mm).
Q: What is the low frequency dry flashover voltage rating?
A: The unit features a low frequency dry flashover voltage of 80 kV.
Q: How is the product packed for bulk shipping?
A: Each pallet contains 336 units, with each unit weighing approximately 6.4 lb (2.9 kg).
Q: What is the leakage distance of this insulator?
A: The total leakage distance (C/D) is 12 inches (305 mm).

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