by kbrownie »
Thu Aug 10, 2017 11:19 am
As above, just to clarify.
The cables that link across the common terminals do so to supply a live connection to each gang. The live connection comes for one of the thicker cables, which is permanently live from the supply. This perm live is the thicker cable that is connected up with the link cables, in your second picture.
Once you have connected all the above up, you will be left with a switch line to each light on the switch. These are then terminated individually at L1 of each gang.
The positioning of these L1 cables, will switch that particular light to that switch on the front of the plate. So depending which light you want at which gang would determine where they are terminated.
Without the link across the commons, only one switch gang will work, that being the one with the perm live connected to it.
Remember safely isolate before work is carried out, and keep all earth cables connected together in the backbox.