Outdoor High Voltage Line Post Insulator Ceramic Insulator

• Application: High-voltage
• Material: Porcelain
• Structure: Post Insulator
• Type: B Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Driving, Electrical Installation
• Connection Method: Trough Type
• Model NO.: EP480S-STM20x165
• Size of Bearing Capacity: 4kn
• Certification: ISO9001
• Color: Red Brown
• Brand: Jecsany
• Transport Package: Carton Box
• Trademark: Jecsany
• Origin: China
• HS Code: 8546209090
• Production Capacity: 50000PCS/Year

Product Description

Insulator is a special insulation control that plays an important role in overhead transmission lines. In the early years, insulators were mostly used on telephone poles. Later, many disc-shaped insulators were hung on one end of high-voltage wire connection towers to increase the creepage distance. They were usually made of glass or ceramics and were called insulators.

Technical Parameters:

 

ANSI Class		57-1	57-2	57-3	57-4	57-5
Creepage distance,mm		356	559	737	1015	1145
Dry arching distance		165	241	311	368	438
Cantilever Strength,Kn		12.5	12.5	12.5	12.5	12.5
Lower Frequency Flashover Voltage	Dry,kv	80	110	125	150	175
	Wet,kv	60	85	100	125	150
Critical Impulse Flashover Voltage	Pos.,kv	130	180	210	255	290
	Neg.,kv	155	205	260	340	380
RIV Data	Test volt. To ground,kv	15	22	30	44	44
	Max RIV at 1000 KHz,Uv	100	100	200	200	200