first of all, we need to know our electricity consumption. generally, the electricity consumption of merchants is 381V, and of course, there are few 221V. The first step in our renovation is to budget our own electricity consumption in advance. For example, brother Qiang received a catering renovation, and only one steamer had 12KW, and the total electricity consumption of the whole store together reached more than 31KW, mainly concentrated in the kitchen. All kinds of large-scale cooking equipment, at this time, we have to consider the carrying capacity of the entrance line. The tenants of the entrance line of the merchants can't change it without authorization, and they have to report it to the management office for modification. The main line of the general merchants has basically reached 16 square meters, and the entrance line can't be less than 11 square meters. The single kitchen in brother Qiang uses a 6 square main line, with 4 square sockets, 2.5 square meters of lighting and 11 square meters of entrance line. The theory of 4-square wire can carry up to 11 kilowatts, but that's the theory, and it can also bear 8-9 kilowatts peak normally, so the 6-square wire is adopted. Every loop reaches 11 kilowatts, a separate loop is made, and the kitchen is made as a separate control box and controlled by the main box at the door, so that the main power supply of the kitchen can be cut off at the door if there is any problem.

in general, the places where shops can be seen are trunking, and the ceilings are lined with conduit. There are many specifications of trunking. We usually use 24 and 39 trunking, because only 24 and 39 trunking interfaces are reserved. Why does smallpox use a conduit? Because there are many parallel heads in the ceiling, it is necessary to install an exposed box at the parallel head, and then allocate a hose to reserve the line to the ceiling lamp, which protects the line well. If the line slot is used and the parallel head is in the line slot, the later maintenance is very inconvenient. The trunking is also divided into Class A and Class B. The Class A trunking is as shown in the above figure, with a compact appearance and glossy material, while the Class B trunking is relatively thin and has poor elasticity. Store decoration water and electricity are suggested to be concealed as much as possible. If you need to be exposed, you should pay attention to the following details.

It is not right for many construction teams to nail the groove directly with steel nails or nail guns, because the steel nails can't be nailed firmly when they meet the cracks in brick walls, and they can't be nailed in when they meet the shear walls, so the steel nails can't be completely nailed in place, and the cable cover plate will easily break the line in the later period, and the nail gun is even worse. The nail head of the nail gun itself is not flat, even if it is nailed to the groove, it will fall off. The best way is to self-tap on the hole, so that the wire slot is firm without worrying that the nail head will break the wire skin.