How to splice 10mm² cables? How to make the correct insulation in 10mm² cable splices? This is the subject of this article, and this process that we are going to show serves for splicing cables with a section more significant than 6mm²; that is, this splice can be used for cables of 10mm², but it can also be used in wires larger as 16mm² or 25mm² per example.
Split bolt terminal, what is it?
A common question is the correct way to splice cables with a more extensive section. We will use a split bolt-type terminal for this process to be done most effectively and safely. This terminal consists of a thread that has a slot in the centre and a tightening nut. Usually, this terminal is made of bronze or aluminium, and it guarantees excellent mechanical tightness for the splice.
This type of splice is widely used in junction boxes between the meter and the installation of the house. Still, it can be used in any splice between two cables with a large section, even in cases where it is necessary to splice rigid cables with flexible cables and cables of different sections. , such as a 10mm² cable with a 16mm² cable.
10mm² cables, how to splice?
Before continuing, let’s recap some essential points. The cables always have a more extensive section at the entrance of electrical installations. In lines with a section more significant than 6mm², terminals and connectors must be used to splice the cables. Never forget this when connecting the meter cables to the QDC input in the junction box.
With that understanding, let’s explain how to make a splice using this split bolt terminal! An extension splice or a derivation splice can be made using this connector. The first step is to strip the cables, then open the terminal by completely removing the nut to press the wires, and then you must fit the wires into the terminal slot.
It is worth remembering that the choice between an extension splice or a derivation splice is up to you; it depends greatly on the space you have available in the junction box. The next step is to fit the nut and tighten it using a hex wrench.
Splicing is a critical point, but with this connector, you can ensure proper mechanical tightening for cable splicing.
