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Pin Porcelain Insulator

Applications: Widely used in low to medium-voltage distribution lines and substations to support conductors on poles.
Overview
The pin insulator is a type of distribution line insulator, which is mounted to an electrical cross arm of the utility pole with the support of various bolts or pole top pins.
Pin porcelain insulator is widely used in the power distribution systems with the features of low price, high mechanical strength, simple design, and easy maintenance.
Pin type insulators are assembled on the top of the electrical poles or towers. The conductor was fixed to the grooves on the upper end of the insulators, with the help of the top tie.
Pin type insulator can be made of ceramic, porcelain, polymer, glass, or silicon rubber.
For lower voltages one-piece type of insulators are enough, For the application of higher voltage, stronger pin type insulators such as two pieces or three pieces types are needed.
Due to its design, It is generally used for the voltage 11kv up to 35kv, pin Insulators beyond a voltage of 35 kV will be bulky and expensive.
Characteristics:
Constructed from durable porcelain, providing high mechanical strength.
Excellent electrical insulating properties, reducing the risk of leakage currents.
Resistant to environmental degradation such as weathering, moisture, and pollution.
Available in various designs and sizes to suit different voltage requirements.
 
Parameter
Item No. Rated voltage(KV) Creepage distance(mmn) Standard lightning impulse withstand voltage(Kv) Power frequency voltage(KV) Bending failure load(KN) Bending failure load(KN) reference weight(kg) Remark
Normal
type
Wet tolerance breakdown
P-10T 10 195 75 28 95 1.4 11 2.1
P-15T 15 280 90 40 98   11 3.4
PQ1- 10 255 90 40 130 2 11 2.35 Stain-resistant type
10T
PQ-15T 15 295 110 50 135 2 11 3
P-20T 20 370 132 50 140 2 13 7
PQ-20T 20 370 132 50 140 2 13 6.5
PQ2- 22 450 132 50 145 2 13 6.7
10T

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