During routine maintenance of cables or in the event of something undergoing damage, one may need to either add length to the cable or make repairs to the damaged cable. To do this, one uses a splicing kit. This helps to undertake the jointing works with the help of a stainless sleeve or a PVC sleeve.
Parts of the splicing kit
One must do the cable splicing only when one has no other options. This is because the splice will not have the strength of the original cable and may not have the water resisting capacity either. The various parts of the cable splicing kit are as follows:
- Needle-nose pliers
- Wire cutters and strippers
- Soldering iron and solder
- Match or lighter
- Heat-shrink tubing or epoxy mold
- Epoxy resin (if you use epoxy mold)
Doing the splice
The first step to making the splice is to stagger the place of the splice of the wires sufficiently. This means you bare the wires of the conductor at different places when you place the two cables end to end. So, if the length of the splice is 15 cm, and you bare one of the conductors at 3 cm from one end, the corresponding wire on the other cable you will bare at 12 cm. The next wire you must make bare at 7 cm or 8 cm for each of the wires.
The idea behind such a move is to make the bulk of the jointed cable less. The other thing is that it helps prevent short-circuits. First, check if the wire has a jacket. This will cover the cable entirely. For practical use, you need strip only 2-3 inches of the jacket of both the cables.
Suppose you have two wires in each cable, and then bare the conductors as mentioned above. If you have a red wire, you bare them at 3 cm from the end for cable A and 12 cm from the open jacket end for the cable B. Now, suppose you have a blue wire, you will bare the conductors at 6 cm from the end for cable A and at 9 cm for cable B. In case you have another green wire, you will bare it at 9 cm distant for cable A and at 6 cm distance for cable B.
Use of solder
Many instances, where you need perfect contact you solder the wires that you joined before finishing the splice. However, this makes the wires hard and difficult to twist and accommodate in the splice. However, if you need this, you have to do this.
Use heat shrink tubing
Now to prepare the heat shrink tubing. You have many advantages with this over the tape or other methods. For one, the heat shrink has more permanence than ordinary tape. Second, it accommodates all shapes without any hassles. The entire thing is compact and looks neat. Third, it gives good strength at the joint.
You need two separate sizes for the heat shrink tubing. One is for the inner separate splices while the second is for the entire cable. Check that you have the shrink tubing on in the first place. Now, you have done your splice.