大禹城邦工程臨時供電方案.doc

臨時供電方案

一．    本工程包括地下一層，底框兩層，三層以上為磚混
由于落地面積大，需三臺吊車。
根據安全用電要求采用三相五線制即TN---S系統，實行三級配電、兩級保護。具體是總電源箱   分電源箱   開關箱。總電源箱和分電源箱作接地保護。分電源箱和開關箱設漏電保護器。漏電保護器應定期檢查是否處于漏電保護狀態。保護零線嚴禁通過任何開關；保護零線除了從總配電箱電源側的零線引出外，在任何地方不得與工作零線有電氣連接。
二．    總電源箱設在甲方給定電源處，分電源箱共三臺
在吊車附近，開關箱設在具體設備附近，實行一機、一閘、一漏、一箱、一鎖。嚴禁同一漏電保護器控制多臺設備。
三．    總電源箱內采用保護配電線路
Temporary power supply scheme

1. The project includes ground floor, the bottom frame two, three or more for the brick
As the landing area, take three cranes.
Under the safe use of electricity requires a three-phase five-wire system that TN --- S system, a three-level power distribution, two-stage protection. Specific points of the total power supply box box switch box. The total power supply box and the sub power supply box for ground protection. Sub-power box and switch box located leakage protection. Leakage protection devices should be regularly inspected for leakage protection in the state. Protection of the zero line and strictly prohibit any switch; protection from the zero line of the main distribution box in addition to the zero line leads to the power side of things, can not work anywhere there is electrical connection zero line.
2. The total power box located in the Party given the power supply, power supply box of three sub-
In the cable car near the switch box located in the vicinity of specific equipment, the implementation of a machine, a gate, a drain, a box, with a lock. The same non-leakage protection control multiple devices.
3. The total power supply box used to protect distribution line
 

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