Summary of 252kV outdoor high voltage earthing switch:
JW6 -252 Model outdoor high voltage earthing switch is three phase AC 50Hz high volt age electric equipment, used in checked busbar and electric equipment earthing to keep people safe, worked as transformer neutral earthing switch as well, which is widely used power system, industrial and mineral enterprise, each quota conforms to IEC62271-103 & confirm GB1985-2004 HV AC disconnect switch and earthing switch DL/T593-2006 Technical Guide of order for HV AC disconnect switch Request.

Technical Specification of 252kV outdoor high voltage earthing switch:

Structure of 252kV outdoor high voltage earthing switch:

Ambient Condition of 252kV outdoor high voltage earthing switch:
1. Sea altitude do not exceed 2000M
2. Ambient temperature: -40℃ ~+40℃
Daily temperature difference: ≤32K
3. Wind pressure do not exceed 700Pa, (equivalent to wind speed 34 m/s)
4. Earthquake do not exceed 9 degree 
5. Ice thickness: ≤10mm
6. Pollution degree: I degree pollution area (To earth creepage distance 16mm/kv)
II degree pollution area (To earth creepage distance 20mm/kv)
III degree pollution area (To earth creepage distance 25mm/kv)
IV degree pollution area (To earth creepage distance 31mm/kv)
According to actual pollution degree adopt correspondence creepage distance product.
7. Flammable and explosive site is inadvisable

Certifications:

Cooperation Projects:

Company Pict:

Huayi Electric Co., Ltd. is the core subsidiary of Huayi Elec. Apparatus Group Co., Ltd. In 2007, It became the first ShangHai Stock Exchange (SSE) listed electric company in WenZhou. The company has more than 1,500 employees, of these 30 percent is engineers. It has 7 core subsidiaries and 4 divisions. It focuses on two main industries: wind energy and electric apparatus. Huayi Electric Co., Ltd has created a complete marketing network to cover the business of State Grid Corporation, five power generation Groups, chemical, petroleum, railways, industries and manufacturing. It as well has established perfect worldwide marketing channels and after-sales service system in Europe, Asia, Africa, America, and Oceania.

Main Products List:
1. Wind Turbines 
2. Switchgear Panels
3. High Voltage Components
4. Instrument & Protection Systems
5. Instrument Transformers & Accessories
6. Outdoor Power Transmission & Distribution Systems

Sample & OEM & ODM is OK. 
More information pls kindly visit our website: 
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http://heag.en.china.cn/