1. Overview of KYN high-voltage switchgear

Switchgear (also known as complete switch or complete set of power distribution device): It is an electrical equipment based on circuit breakers; it refers to the manufacturer, according to the requirements of the electrical primary wiring diagram, the relevant high and low voltage electrical appliances (including control electrical appliances, protection Electric appliances, measuring appliances) and busbars, current-carrying conductors, insulators, etc. are assembled in closed or open metal cabinets as devices for receiving and distributing electrical energy in the power system.

2. Normal use conditions

Ambient temperature: the ambient air temperature does not exceed 40 °C (upper limit), -5 °C (lower limit) in general areas, and -15 °C in severe cold areas. If the ambient temperature is too high, the conductivity of the metal will decrease, the resistance will increase, and the surface oxidation will be intensified. If it is too low, internal stress will be generated in the insulating parts, which will eventually lead to the destruction of the insulating parts.

Altitude: generally not more than 1000 meters. For equipment installed at an altitude higher than 1000 meters, the insulation level of the outer insulation should be multiplied by the required insulation withstand voltage by the correction factor Ka[ka=1÷(1.1-H× 10-4)] to decide. Due to the thin air in high-altitude areas, the external insulation of electrical appliances is easy to break down, so use reinforced insulation electrical appliances, increase the air insulation distance, or increase insulation protection measures in the switch cabinet.

Ambient humidity: The daily average is not more than 95%, and the monthly average is not more than 90%.
Earthquake intensity: not more than 8 degrees.
Other conditions: place without fire, explosion hazard, serious pollution, chemical corrosion and severe vibration.