The role of fire alarm ceiling speaker is much greater than we imagined. In addition to the general broadcast information release, in dangerous emergencies, such as when a fire occurs, the effective information provided by ceiling speakers can often save many lives. Therefore, after the installation of the ceiling speaker, it should not be just a decoration, but should be fully utilized, pay attention to maintenance and repair, in order to play a role at a critical moment.
1. Wiring is very important for the installation of ceiling speakers. It is best to do the wiring together with the wiring of the electrician. Since the speaker wire is weak current, it should not be too close to the strong current (AC220V) of the electrician. If you wear a PVC pipe, the distance should be 20 cm. That's ok, because of factors such as installation and interference, it should be done, but the general wiring should follow the strong or weak circuit lines arranged by the electrician as much as possible, so that it is not messy, and it is also convenient for maintenance in the future, because the electrician wiring is generally There will be an inspection port, and the speaker wire should be different from other lines. Don't know which one is the speaker wire when it is overhauled in the future.
The PVC pipe of the horn circuit can be fixed on the hanging bars of the ceiling. Another point that needs to be coordinated with the electrician is that the position of the horn point needs to be considered in the actual construction process. Air vents, as well as the shape of the ceiling capping, etc., if your speaker installation position is the same as the lamp position, or it is designed in the air outlet of the air conditioner, it is not good, and it will affect the appearance.
The speaker wire is passed through the PVC pipe. We require the PVC pipe not to use elbows, but to use springs to bend it to ensure that the wires in each pipe can be freely twitched from the junction box, mainly to ensure future maintenance, wire replacement, and threading. .
2. Precautions for the opening of ceiling speakers, use a special hole opener, and do not damage the ceiling, especially the ceiling with gypsum ceiling.
The diameter of the opening is in accordance with the opening size specified by each speaker. In actual construction, it can be slightly larger, which makes installation and removal easier, especially for gypsum ceilings. If the speaker is installed tightly, it is easy to destroy the gypsum when it is removed. plate.
3. For the installation of ceiling speakers, it is best to wait for the painter to finish the painting, and then install it carefully. Usually, the electrician also installs various lamps at this time.