According to what standard are the engineering personnel of star-rated hotels configured?

Part of the project is weak current and strong current. The weak current is responsible for hotel conference facilities, background music, network, monitoring, door lock system and TV telephone system! Qiangdian is responsible for the maintenance and repair of all hotel facilities. Five 15 sound control maintenance and five two weaknesses can be combined. Don't separate them. At first, some people will gradually resign after being more stable. I used to do maintenance in a five-star hotel. Don't make the four stars so clear.