The Installation Height Of The High-voltage Disconnect Switch Should Maintain A Safe Distance From Live Parts.

Specifically, the installation location of high voltage isolator switch should be determined based on the voltage level of the equipment, the site environment, and technical specifications. For example, the distance from the handle fulcrum of the operating mechanism of a hv isolator indoor unit to the ground is typically 1.0m to 1.3m. Furthermore, the installation height of the hv isolator switch shaft to the ground is generally set within the range of 2.5m to 6m. In determining the installation height, the minimum insulation/clearance requirements between live parts and personnel/equipment should also be referenced in the "Electrical Safety Work Regulations (Substation Section)". For example, the operating mechanism of high-voltage equipment should be isolated using walls or metal plates.