Connection method:
1, the wiring will be concentrated in the middle as far as possible, and the exposed lights will be installed in the way of extending around, which is convenient for connecting buses, and at the same time, it can ensure the normal work of other lines when one line is burned out.
2. The lamp tail is connected in series, which can not only stabilize the current, but also reduce the possibility of burning out the exposed lamp because of the stability of the current.
3. The total power of the exposed lamp should be controlled below 80% of the total power of the transformer. After all, the installation position of exposed characters is generally dangerous and difficult to maintain, which can better protect the transformer.
Extended data:
In the construction of power wiring, the following matters should be paid attention to.
1, general circuit equipment, with power supply and load signs on it. In the actual wiring process, just follow the above signs, and don't connect the two backwards.
2. The control switch or protection wire shall not pass through the current transformer. When using three-phase five-wire system or single-phase three-wire system, the protection line must be connected to the protection trunk line at the incoming end of the leakage circuit breaker. If it is a single-phase lighting line, three-phase four-wire distribution line and other lines or equipment that use working zero line, the zero line must pass through the current transformer.
3. In the system where the neutral point of the transformer is directly grounded, once the leakage circuit breaker is installed, the working zero line can only be used as the working zero line after passing through the current transformer, and it cannot be grounded repeatedly, nor can it be connected with the working zero line of other lines. Electrical equipment can only be connected to the load side of the leakage circuit breaker, and it is not allowed to connect one end to the load side and the other end to the power side.