Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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Product quality assurance is based on the continuous improvement of research, development, design and production process of products that meet all aspects of the quality system. The production plant has obtained the certification of ISO 9001.
The product has done type test in the national high voltage test centre with specified items. The basic parameters and technical specification is in accordance with the following standards:
IEC62271-200 AC metal-enclosed switchgear and control equipment for rated voltages above 1KV and below 52KV
GB/T 3906 AC metal-enclosed switchgear and control equipment for rated voltages above 3.6KV and below 40.5KV
DL/T 404 AC metal-enclosed switchgear and control equipment for rated voltages above 3.6KV and 40.5KV
GB/T 1984 HV AC Circuit breaker
GB/T 1985 HV AC Disconnector and earthing switch
Altitude: Not more than 3000m above the sea level.
Ambient temperature:Max :+40℃,Min:-40℃;
Relative humidity: Daily average is not more than 95%, monthly average is not more than 90％;
No apparent pollution of corrosive or combustible gas around;
No regular violent vibration, Seismic intensity is not more than eight
Note: if deviation of normal service conditions occurs, the customer can negotiate with the manufacturer.
Standard structure figure for outer cone cable outgoing, horizontal circuit breaker, lateral extended bus, rated voltage: 12-24KV, rated current: 630~1250A