Medium and low voltage line porcelain insulators | Maintenance-free and dirt-resistant

Porcelain Post Insulator

Shandong Weichite Electric Power Technology—a professional manufacturer of ceramic insulators for power lines, offering the 57 series of medium and low voltage line support ceramic insulators. Featuring a solid A-type structural design, these insulators are capable of withstanding harsh environments down to -60C, with a bending strength of 12.5 kN and a 30-year maintenance-free lifespan. Customized solutions are available for heavily polluted areas, and the manufacturer is ANSI-certified and IS...

產品詢盤

What are the different types of porcelain insulators for line poles, and how should they be selected?

As a key support component for power lines, medium- and low-voltage line pillar porcelain insulators (referred to as “line pillar porcelain insulators”) play a central role in overhead transmission and distribution networks thanks to their outstanding mechanical strength and electrical performance. Shandong Weichite Electric Power Technology Co., Ltd. is a professional manufacturer of line porcelain insulators with more than ten years of experience in the industry, committed to providing highly reliable insulation solutions for power grid construction.

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Product Model and Technical Specifications

Line support porcelain insulators. Manufactured by permanently bonding high-strength ceramic components with a metal base using special cement, the main models include: support ceramic insulators, 57-1, 57-2, 57-3, 57-4, 57-5, 57-6, etc., corresponding to voltage ratings of 0.4 kV, 11 kV, 15 kV, 24 kV, 30 kV, and 35 kV for medium and high-voltage power lines.

Parameters of Line Pillar Porcelain Insulator：

Type		57-1	57-2	57-3	57-4	57-5	57-6
Figure NO.		1	2	3	4	5	6
Creepago Distance mm		356	559	737	1016	1143	1364
Dry Arcing Distance mm		165	241	311	368	438	489
CantileverStrength KN		12.5	12.5	12.5	12.5	12.5	12.5
Power Frequency Flachover Voltage	DRY K V	70	100	125	140	160	180
Power Frequency Flachover Voltage	Wet KV	50	70	95	110	130	150
Critical lmpulso Flashovor Voltago	Positive KV	120	160	200	230	265	300
Critical lmpulso Flashovor Voltago	Negative KV	155	205	260	340	380
Radio-influence-voltage Data	Test Voltage to Ground	15	22	30	44	44	44
Radio-influence-voltage Data	Max.RIV at 1MHz	100	100	200	200	200	200
Not Weight Kg		5.2	9.0	11.0	18	18	20.5

產品詢價

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