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Anonymous users2024-01-24Take the ordinary rocker switch (up and down action) as an example.
Single-pole single-control switch: down--on; On - breaking.
Double-pole single-control switch: two independent "single-pole single-control switches" are installed together;
Three-pole single-control switch: (analogy).
Single-pole dual-control switch: down--on-line 1; on--connect line 2;
Double-pole dual-control switch: Two independent "single-pole dual-control switches" are installed together.
Three-pole dual-control switch: (analogy).
Note: The dual control switch is used to control the lamps of the same circuit in 2 places, such as controlling the same stair lamp in 2 places up and down the stairs.
That is, you can control this socket 2 times.
The electrical socket is blocked, which is very inconvenient to use and unsafe. It is recommended that you go to an experienced electrician to pull the root line from that socket, and then install an open socket to solve the problem, please adopt.
First of all, according to the size of the type of electric water heater you choose (storage type, instant heating type, quick heating type), reserve the appropriate height and the location of the hot and cold water pipes, and it is recommended to design it before decoration. Among them, the pipeline treatment is also divided into hidden and exposed, and it is best to reserve it when walking the toilet pipe. Some electric water heaters are semi-hidden, so the ceiling should be reserved in advance before such installation.
The inlet and outlet are 75-80 cm down and 10 cm in the middle of the electric top down to about 65 on the right side of the water heater and the bottom edge of the water heater is the best.
Under normal circumstances, the installation of electric water heaters is directly responsible for the manufacturer, but if you are more worried, then pay attention to the following points: >>>More
First of all, consider the two types of water heaters that are more suitable for your home >>>More