The need for splicing the telephone cable arises when it breaks (for example, during the renovation of an apartment), as well as if the telephone socket is rearranged to another place, and the cable must be lengthened. Every home master should be able to perform this operation.
It is necessary
- - nippers;
- - latex gloves;
- - electrical tape.
Instructions
Step 1
Pick up the handset on the parallel telephone, which, despite the cable break, remained connected to the network. This will prevent ringing voltage shock that could appear on the line in the event of an incoming call. If you have only one device, or the break happened in such a place that all the phones in the apartment turned off, you will have to work with rubber gloves.
Step 2
Locate the damaged cable. If it is not possible to find it visually, use a non-contact inductive damage detector. This device can be borrowed from a telephone operator for a while. In the absence of such a possibility, a piece of cable, the breakage point of which is unknown, is easier and faster to replace entirely.
Step 3
To splice a two-wire flat cable of the old design, split the noodles along each side with wire cutters so that the cut line is exactly in the middle. Carefully strip the ends. Remember that the insulation of the "noodle" is not made of PVC, but of polyethylene, therefore, when stripping, accurately calculate the force in order to remove only the insulation without damaging the core.
Step 4
Connect one of the wires of one end of the cable to any of the wires of the other end. It is not necessary to observe the polarity. Do the same with the remaining wire combination. Insulate the connections carefully from each other. Then make sure that those telephones that stopped working after the break are working again.
Step 5
Telephone cables of the new design have an outer sheath, inside which two or four stranded conductors are laid in one row, each of which has its own color insulation. The outer sheath is easily removable with almost no risk of damaging the conductor insulation.
Step 6
If the cable is two-wire, the splicing procedure is the same as for the noodles. The four-wire cable, which is much more common, should be repaired as follows: do not connect the outermost wires in the row anywhere and do not even strip them, since they are not involved, and splice the wires in the middle in the manner described above.
Step 7
If a special telephone is connected to the line, designed to work simultaneously with two lines (they are found, although rarely, in offices), the outermost wires may also be involved. Splice such a line by simply connecting conductors of the same color together.
Step 8
When you have finished working and making sure that all phones are connected to the line again, replace the handset on the device from which you picked it up before starting work.
