You have to estimate the length of cable needed for one room. If you want to measure the length of the old cable, use a nylon plastic strap that is usually used to tie used newspapers. Then, cut the rope for about 3 meters so it’s not too much trouble when taking measurements. Make several (4 – 5) threads of the same length. Apart from that, you can also call the electrical services singapore if you’re uncertain whether you can install cables at home alone or not https://www.localservice.sg/electrical-services/.
When making measurements, add about 20 cm (one inch of palm) to meet each connection point between wires, socket points, light switch points and light fixtures (fittings). Then, make a knot on the rope according to the size of the cable length. Use a new rope if the length of the measured cable is shorter.
Try to make as little as possible or enough cable connections to the parts that need it.
If a new cable is available, use a nylon plastic strap that was previously used to measure the length of the old cable. Cut the new cable according to the distance of the node that was made.
In this way, the length of the new cable that must be cut will be close to the size of the old cable. After the new cable is cut and will be juxtaposed with the old cable, you should use another cable to tie the new cable to the old one so that it does not fall apart. Follow all lines and connections between existing cables. Work step by step in accordance with the available budget and time, until the entire old cable network is compatible with the new cable.
Peel each end of the new cable that will be connected to the socket point, the light switch and the light point. This will make it easier and faster to work when electricity is moved from the old cable installation to the new one.
The biggest difficulty I found is when I wanted to replace the cable for the socket line and the light switch embedded in the wall. Generally, cable lines installed in the wall are inserted into PVC pipes which are provided specifically for cable lines