Emergency light common wiring
In daily supervision and inspection, it is found that the emergency lighting fixtures are not normally used due to incorrect wiring methods. Each emergency luminaire should be equipped with a dedicated line, and no switch is set in the middle. Two-wire and three-wire emergency luminaires can be unified on a dedicated power supply. The setting of each dedicated power supply should be combined with the corresponding fire protection code. The emergency power supply is rotated separately from the luminaire, and its electrical connection
Automatic emergency lights should be made of high temperature resistant wires to meet fire protection requirements.
This connection method is a common connection method for special emergency lighting. It is suitable for use in emergency lighting without lighting or 24 hours continuous lighting (CED marking light belongs to this category). After the power is cut off, the emergency light automatically lights up.
Two-wire system
The connection method is a commonly used connection method for emergency lights. It can control the on/off of the normal lighting state of the emergency light. When the power grid is cut off, no matter what state the switch is in, the emergency light immediately lights up. K is a usual lighting switch.
Three-wire system
Precautions
1. To accurately grasp the characteristics of various wiring methods, so as to avoid blind wiring, it should not play a role;
2. Emergency lighting If it is part of the usual lighting, a three-wire controllable connection method should be used.
3. For multi-storey public buildings, if there is no control center, the emergency lighting fixtures of each part can be connected with local switch control (single lamp single control or multi-lamp control) or three-wire connection with centralized control in the distribution box. .
4. There is a fire control center project, in order to meet the fire emergency lighting requirements of the fire control layer and related layers when the fire occurs.
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