C.P.C in T&E as a live conductor

[leep82]

I know the thread title sounds bad but hear me out. I have wired an intermediate switch set up with feed at one switch, switch wire at another and twin and earth as my strappers between to an intermediate switch. My customer wishes to use lightwave switches for the three posistions mentioned where originally he didnt.

Im only a little familiar with the lightwave stuff having used it on other areas of the customers property. The problem that now seems to face me is that, how i understand it anyway, the three lightwave switches all need a permanent feed, a switch feed and a signal cable between them. This isnt a problem at two of the switch positions but at the third i only have one twin and earth ( strappers ) and my switch feed to the lights.

Reading up on the lightwave stuff it states that the signal cable between the three must not have mains voltage applied to it and operates on low voltage. With this in mind im wondering if i could get around the issue by using the cpc as the signal cable between two of the switches.

No accessories will be left without a c.p.c as there are other c.p.c’s present. I know its not ideal and im not fully comitted to the idea. If the signal cable required mains voltage i would NOT even consider this approach. Would appreciate any opinions

 

[littlespark]

Gen1 LightwaveRF?
Just use one main switch, only needs live and switchwire. The other switches could be battery powered slave switches paired with master switch.
All your extra cables could be made safe and left in the back of the boxes.

 

[Deuce]

As it's just an ELV signal, can't a length of lightweight signal cable be fed between the two somehow? even if it's a slightly obscure route.

Or just tell the customer it can't be done without re-decorating the room

 

[Deleted member 111934]

Follow the manufacturers instructions.
From whats been posted... Personally I wouldn’t do it.
Apart from the obvious with no cpc in the cable there is potential to damage the devices if a fault occurs (230v down the signal conductor).
Also what about possibility of stray voltage on the signal conductor having an adverse effect on operation.

I believe there is a product that will dim from multiple points by Zano by using 2 cores at each point.

 

[Toneyz]

As littlespark posted I think that Lightwave do a wireless switch (slave)

 

[professional]

Even if you insulate the cpc at both ends, a conductor must be suitably insulated along it's entire length. The sheath of t&e is not insulation, it is mechanical protection.

 

[ukiri]

Lightwave can be an arse to use, but they now have wireless 1 and 2 gang switches to make 2 way or intermediate switching.
Lightwave RF Dimmer Switches | Wireless Dimmers | Downlights.co.uk - https://www.downlights.co.uk/lightwave-rf-wall-switches.html

 

[mydigitalhome]

Scrap lightwave and use Rako instead more flexible and once installed wont get called back to fix it.