Verify that all incoming line voltage (power) and low voltage (control) circuits are de-energized and locked out before installing cables or making connections in the junction box or in the unit. Equipment inspection and startup must be performed only by trained personnel. The equipment and power department of the distribution box shall number, register and file each low-voltage distribution box, manage at different levels. Low-voltage power distr ibution facilities refer to the infrastructure that delivers electrical power from a power supply room to end-user equipment, typically including distribution cabinets, cables, and wiring. To ensure the normal operation of these facilities and guarantee user safety and power. In daily life, the use of distribution boxes is indispensable, so what about the distribution box wiring specifications and precautions? Substation Electrical Switchgear Manufacturer will briefly introduce the method for everyone, hoping to help everyone. Develop a detailed. The consulting engineer, installer, and/or end user is responsible for compliance with all applicable laws and regulations relation to the application, installation, and operation of this product. To complete the maintenance with the least power.