PXXHDC 54-4 Porcelain Stay Insulator
Place of origin: China
Brand name: PXXHDC
Model name: 54-4
Application: low voltage
Rated voltage: 89kV
Color: white and brown
Product name: 54-4 stay insulator
Usage: Insulation protection
Advantage: factory price, high quality
Packing: carton box
MOQ: 1000 Pieces
Tensile Strength: 20,000Pounds (89kN)
Low-frequency Dry Flashover Voltage: 40kV
Low-frequency Wet Flashover Voltage: 23kV
A disruptive discharge external to the insulator, connecting those parts which normally have the operating voltage between them.
Dry lightning impulse withstand voltage:
The lightning impulse voltage which the insulator withstand dry, under the prescribed conditions of the test
Wet power frequency withstand voltage:
The power frequency voltage which the insulator withstand wet, under the prescribed conditions of test.
Electromechanical failing load:
The maximum load reached when a string insulator unit is tested under the prescribed conditions of test.
Mechanical failing load:
The maximum load reached when a string insulator unit of a rigid insulator is tested under the prescribed conditions of test.
The voltage which causes puncture of a string insulator unit or a rigid insulator under the prescribed conditions of test.
The shortest distance or the sum of the shortest distances along the ceramic or glass insulating parts of the insulator between those parts which normally have the operating voltage between them.
The insulating material of overhead line insulators coved by this parts are:
—ceramic material, porcelain
—annealed glass, being glass in which mechanical stresses have been relaxed by thermal treatment.
—toughened glass, being glass in which controlled, mechanical stress have been included by thermal treatment.