Distribution room refers to the indoor distribution place with low-voltage load, which mainly distributes electric energy for low-voltage users, and is equipped with medium-voltage incoming lines (with a small number of outgoing lines), distribution transformers and low-voltage distribution devices. 10kV and below voltage equipment and facilities, divided into high voltage distribution room and low voltage distribution room. The high-voltage distribution room generally refers to the 6 kV- 10 kV high-voltage switch room; Low-voltage transformer room generally refers to the 400V transformer room of 10kV or 35kV substation. This item introduces the composition, design specification and safety system of the distribution room.
Extended data:
The locations of substations and distribution stations shall conform to the basic principles of power supply, construction and safety. From the point of view of power supply, the substation should be close to the load center to reduce the consumption of non-ferrous metals and electric energy; Incoming and outgoing lines of transformers and distribution stations shall be convenient. From the production point of view, substations and distribution stations should not hinder the production and transportation in the factory; Substation should be located in the windward side of the enterprise, not in the place where dust and fibers are easy to deposit; Substations and distribution stations should not be located in crowded places.
The site selection and construction of substation should also consider the requirements of fire protection, anti-corrosion, anti-pollution, waterproof, rainproof, shockproof and preventing small animals from entering. The fire resistance rating of high-voltage distribution room should not be lower than Grade II; The fire resistance rating of the low-voltage distribution room should not be lower than Grade III; The fire resistance rating of oil-immersed power transformer room should be Grade I; For areas where steel grate cement is not easy to obtain, independent single-storey buildings can be used, and the fire resistance rating is Grade III.