Bob Minchin wrote:
Paul G wrote:
My garage is attached to the house with a 3-way lighting circuit.
Sometimes the family leave these lights on and this is only discovered
when someone goes outside and notices the fact. One of the light
switches is inside the house (next to an internal door into the garage)
while the remainder are at either ends of the garage. I'd like to add an
indicator to the indoor switch to show when the lights are on. Because
it's a 3-way circuit, I think I need a new cable from the lights to this
switch. It's a single gang box but I am struggling to find a switch with
neon indicator that is fed separately. I'm sure this is all achievable
using a modular faceplate but frankly I'm hoping to avoid the expense
(of modular).

I am hoping someone can confirm I need to add a new cable for this, and
suggestions for a switch+(separate) neon indicator faceplate ?

Thanks Paul

Find a miniature mains transformer - secondary voltage irrelevant. Wind
a turn or so of insulated wire through the odd gaps in the core and use
this as a current transformer with a neon across the 240v winding.
You might have to play with the number of turns but the neon will strike
when the lighting circuit draws current.


I'll tip my hat to a solution that I
(a) hadn't thought of and
(b) seems an entirely simple and elegant way of doing it!

--
Ineptocracy

(in-ep-toc-ra-cy) €“ a system of government where the least capable to
lead are elected by the least capable of producing, and where the
members of society least likely to sustain themselves or succeed, are
rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.