Lighting circuit problem in WA

[eddie]

what transformer are you connected to?

"John G" <Greentest@ozemail.com.au> wrote in message
news:4657cbfd$0$18001$5a62ac22@per-qv1-newsreader-01.iinet.net.au...

"Franc Zabkar" <fzabkar@iinternode.on.net> wrote in message
news:t0f1u29t9h9ju9rdtfulki612gdc2lt6le@4ax.com...
On 22 Feb 2007 04:24:39 -0800, nick_hobbs@hotmail.com put finger to
keyboard and composed:

Just wondering if anyone can help here.

Just had a new house built and we are getting a problem with the
lights flickering. The builder's electricians have changed the circuit
breakers, changed the RCD protecting the lights and have swapped the
circuit to a different phase (we are on 3 phase). No joy.

In a 10 minute period all ceiling lights might flicker for, say 10
seconds or so but it isn't predictable and doesn't appear to be
associated to any particular pattern of power usage. The flicker isn't
major, just enough to be noticeable and irritating. The light fittings
are mixed inluding dichroic, 10w halogen and 60 incandescent.

Western power have been out to check the dome, pole, local transformer
and board saying all were OK. They put a voltage recorder on for 36
hours and didn't detect any sags or spikes outside of the 240-250V
range.

Understandably, the electricians don't want a bar of it but I'm
obviously at a loss.

I'm guessing at
a: Loose connection in one of the fittings or in the roof space

I'd take Don's advice to determine whether or not the problem is
confined to your lighting circuit. If it is, I'd then find out which
light is closest to the breaker and leave this one on while switching
the others off. If the first light doesn't flicker, then keep
switching on more lights until the problem shows up. A high resistance
connection in the circuit should not be a problem until you try to
pass current through it.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.


Australian Rules.
Just had this very problem in a 2 switch plate supplying 2 lights.
At first glance all looked OK but with the power off it turned out the 3
wires in the LOOP terminal on one switch were a bit loose.
Tightened the screw and all is well.

--
John G.