Change the strong current to copper wire and change the weak current

Switch from strong electricity to copper wire

The indoor power line is generally called strong power, which mainly has two parts: lighting and socket circuit; in the second decoration, the transformation of the circuit is necessary for each residence. If the original residential circuit uses aluminum wire, it must be replaced with copper wire. Because aluminum wire has a low melting point and high resistance, there are hidden safety risks, and the country has explicitly eliminated it. It is recommended that several socket boxes should be opened before the renovation to check the nozzles of the originally installed wire tubes. If the wire tubes have been corroded, the original wire tubes can no longer be used and should be discarded. If the wire and tube are well preserved, you can simply replace the wire in the tube. If the copper wire in the tube is in accordance with the standard, you can continue to use it.

In order to save the cost of decoration, the original lines can be used without being removed, but the newly added power sockets and lighting circuits are best routed separately from the distribution box. Do not save time and directly branch from the original circuit or directly from the socket Lead wires, because all the original circuits are calculated and distributed according to the electrical load of each circuit branch during installation, any wiring or adding sockets and lighting fixtures to the original circuit will cause a single circuit to be overloaded, which is easy to cause Tripping or burning out the main power switch can even cause a fire.

Many old houses should consider replacing the indoor main power box during the second decoration, because the original power box is generally not loaded enough, and there is no leakage protection device installed. In addition, in old residences, the original socket circuit may not have a ground wire (generally, sockets with only two holes lack grounding), which does not meet the electrical safety standards and must be replaced. One method is to replace the main power box of the residence, and set the grounding in the power box; another method is to find the electricity management personnel of the property to negotiate the installation position and connection method of the grounding wire, and never set up the grounding wire by yourself.

Change the weak current and pay attention to protection

Telephone lines, network cables, video cables and other weak current projects must be protected first when they are renovated, and it is best to close them in advance. The alteration of the pipeline must be started after the household interface box is completed. Never cut the household line, otherwise it will be very difficult to recover. After the installation of the indoor weak current line, please ask Netcom and other professional companies or property companies to check, and the professionals will connect the new indoor weak wire and the home interface box to ensure that there will be no problems and failures in future use. In general, the electricians of home improvement companies have low-voltage electrician operation certificates, which can be assured of the construction specifications of strong electricity, but the construction of weak electricity is not professional.

Before the decoration, you should consider the installation location of various weak current sockets in advance. According to people's living habits, it is best to leave weak current sockets in the main function rooms (such as living room, bedroom, etc.), and the bathroom must consider telephone sockets. To facilitate future life. As for the building intercom system, it is better to ask the property department to dismantle it before renovation and reinstall it after completion. If it cannot be dismantled, it must be bandaged or protected in advance to avoid damage during construction.

It should be noted that all weak wires must be laid through the pipe, and the weak current pipelines and sockets should be separated from the strong current pipelines and sockets by more than 300? To avoid the interference of strong currents on weak currents.