General regulations on lighting of construction site

Update:22 Jun 2020

1. Lighting fixtures and devices must be well insulated […]

1. Lighting fixtures and devices must be well insulated and conform to the provisions of current national standards.
2 lighting lines shall be arranged in order and relatively fixed. The hanging height of fixed lighting fixtures installed indoors shall not be less than 2.5m, and that of outdoor lighting fixtures shall not be less than 3m. The lighting fixtures installed in the open workplace shall be waterproof lamp caps.
3 the lighting lines in the field office, dormitory and work shed, except for rubber sheathed flexible cable and plastic sheathed line, shall be fixed on the insulator and laid separately; when passing through the wall, insulation pipe shall be set.
4. The lighting power line shall not touch the wet ground, and shall not be close to the heat source and directly tied and hung on the metal frame. When installing temporary lighting on the scaffold, insulator shall be added on the bamboo and wood scaffold, and wooden cross arm and insulator shall be set on the metal scaffold.
5 lighting switch shall control phase line. When a screw socket is used, the phase line shall be connected to the central contact.
6 the following requirements shall be met when using the portable lamp:
1) The voltage shall not exceed 36V.
2) The voltage of portable lamps used in metal containers and metal pipes shall not exceed 12V.
3) The running light shall have a protective cover.
4) Handle of portable lamp shall be well insulated, heat-resistant and moisture-proof.
5) The power cord of the portable lamp shall be rubber sheathed flexible cable.
6) The portable lamp transformer must be double wound type. Fuse shall be installed at the primary and secondary sides of the portable lamp transformer; protective grounding or zero connection measures shall be taken for the metal shell.
7 it is strictly prohibited to bring the portable lamp transformer into the metal container or metal pipe for use.
8. Lamps shall not be installed directly above the distribution boards, cabinets and busbars in the substations (excluding enclosed busbars, enclosed distribution boards and cabinets).
9. A certain safety distance shall be kept between lighting lamps and combustibles. Ordinary lamps shall not be less than 300 mm. High heat lamps such as spotlights and iodine tungsten lamps shall not be less than 500 mm and shall not directly illuminate combustibles. When the space is not enough, thermal insulation measures shall be taken.