What knowledge should a hotel electrician master?

It depends on the common electrical equipment system in this hotel. Usually, in normal business, it is necessary to ensure the normal and safe use of electricity, replace the damaged switch socket in the room, check and replace the incoming line of the room, and simply troubleshoot the electrical appliances. It is also simple to say, but if you want to do it well, you must first have a set of electrical tools, then have the hotel circuit diagram, electrical maintenance instructions, and be aware of the types and specifications of electronic components.