1. Structural Features

l The cubicle is made of the imported alloy-coated steel sheet, and processed by the CNC machining and the multiple folding technology, and then assembled by the rivets and the high-strengthen bolts. With the application of the electrostatic spraying technology, the door has great impact and corrosion resistance capability, and high mechanical strength and elegant appearance. The main circuit breaker can select VS1 vacuum circuit breaker, ABB VD4 series devices and Schneider devices.  

l The handcart of the same type can be interchangeable reliably;

l It is provided with the reliable and simple mechanical interlocking between the circuit breaker and the disconnector, fully meeting the requirement of Fail Safe.

l There has sufficient linking and maintenance room in the cable chamber. The height of the cable linking is around 800mm which is high enough to connect several cables and easy for the maintenance.

l The cubicle is divided into four independent chambers, supporting overhead incoming and outgoing lines, incoming and outgoing cables and other functional schemes. After the permutation and the combination, it can form various power distribution devices.

2. Ambient conditions

l For the normal design, the altitude should be not more than 1,000m. If above 1,000m, it will design according to the altitude correction factor of the highland and manufacture as per the requirements suitable for the highland altitude.

l The ambient air temperature ranges -35℃~+40℃, and the average temperature within 24h ≤ +35℃. If exceeding the specified time, it has to reduce the capacity according to the actual condition;

l The relative humidity should not exceed 50% at +40℃, while at lower temperatures, larger relative humidity is acceptable, e.g. 90% at +20℃. Considering the change of temperature may sometime cause the condensation, the daily average should be less than 95% and the monthly average less than 90%;

l The water vapour average should be 2.2*10^-3Mpa or below while the monthly average not larger than 1.8*10^-3Mpa; 

l The gradient between installation surface and vertical plane is ≤  5°;

l The seismic intensity should be not more than 8 degree;

l Frequent severe violation is acceptable;

l No pollution is allowed to the ambient air, such as corrosive substance, flammable gas, vapour and so on.   

3. Technical parameters

4. Size specification