Been testing a modified circuit today.
Ze = o.20
R1 + R2 = 0.77
Zs = 1.77
So the reading is about 0.80 higher than I was expecting... Nothing on this (lighting) circuit switched on..... I was testing at the end of a smoke alarm addition.
I've read elsewhere, that its a good idea to do a Zs on...
Hello.
Can anyone point me to what it might be that requires a neutral generator when using a digital 3-phase converter outputting 400V?
If a machine has control equipment in its cabinet that wants single line and neutral supply at 230v, how come the supply neutral cannot be commandered for...
Hi
I have a very unusual problem that I need help with. I have a quarter scale model showmans traction engine, which is run by a 12v car wiper motor in the Dynamo housing. The power is supplied by what appears to be a home made transformer. This engine and unit are nearly 40 years old. It...
just a quick one...Whats peoples thoughts on wiring a intermediate lighting circuit with a neutral at each switch and what way would you wire it?? 2core and earth from db 3 core in between and 2 core and earth to light fitting from last switch???
Went to do some pre-work inspecting and testing for a small job on a lighting circuit I am undertaking next week. Relatively new dual split load consumer unit, 1 lighting circuit for upstairs and downstairs, 1 line wire, and seemingly 2 neutrals (one of which is a single). I initially thought...
HELLO ALL
i am changing over a cu.
i have conducted basic testing before deciding to change over to a dual RCD wylex 17th ed board.
The board's RCDs and main switch were prewired.
The neutral cable comes out of one rcd and into another and out again from the same terminal and directly back...
I'm working on a 3 bed semi that is being split into two flats. Ground floor is concrete so all the cables for ground floor sockets run through the ceiling. The client has resquested an additional socket but doesn't want the wall paper or walls damaged. Their suggestion is to break into the...
Hello folks got a quick couple of questions regarding some testing i have recently undertaken.
Im doing an EICR for a friend on a couple of new build flats where the electrics were done by an unqualified builder.
If the install should be done to current regs are things like missing earths at...
Hi All
i will be as quick as possible.
System six months old. 16 sharp 250 panels. 2 strings. 10 panels south. 6 panels east. aurora 3.6 power one.
Total generation for 6 months 720 units.
Purchased aurora communicator software. ran it and sent results to aurora. inverter fine.
dead dc test...
Hi
i was just painting my ceiling and unscrewed the ceiling rose to cut in and noticed that the wiring doesn't look quite right.
there are 3 cables so i assumed 1 in, 1 out and the switch. There are 3 reds in the centre block, 1 black in the 2 gang block with the neutral of the light, and 2...
sijaysee
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block
ceiling
ceiling rose wiring
connections
rose
unusual
wiring
Hi chaps,
Currently working as a self-emplyed sub-contractor. I'm registered as such with HMRC and recently I've been working for a single company and using their equipment and vans. I invoice them at the end of the month with my hours and rate and they transfer the cash.
This month the...
Hi Guys
I'm fresh to the EF had a bit of a bad day, replaced an old wylex Bs3036 consumer unit with a new enclosure with 8 Rcbo's (1 x 40, 4 x 32,1 x 20, 2 x 10 amp) all went in fine all continuity, end to end tests and insulation tests went well, until I started testing the rcbo's using the...
just a story i thought id share
was rewiring a burnout in wandsworth with my mate in january when on the second day was a knock on the door. It was the lady next doors handyman saying all power was down to oneside of her kitchen and asked if it could be anything to do with us, told him shouldnt...
Hi,
I've joined to pick the collective brains on here:wink5:
I've got a lighting set up bought from Habitat a few years ago.
It consists of a big drum transformer, it has two steel wires which span the room and five halogen bulb holders attach to this.
It appears the transformer died the other...
I was asked to add 3 extra sockets to a bedroom. It is a one ring supplying upstairs and downstairs with no RCD. Kitchen has a different ring.
When doing R1+R2 with cross joining Live & cpc at cu, I get a reading of 0.23 ohm upstairs and it keeps rising to 1.01 ohm downstairs.
Same problem...
Got a call out yesterday to look into a problem which has stumped me, and it seems many others before me.
Wylex 16th ed Box (installed 2005 by qualified registered spark who left good cert), 2 lighting, and door bell on main breaker together with a Hager bell transformer, shower sockets...
Hi, I m very new to this so please go easy...
Got called out to the local pub yesterday to a supply fault, the Landlord has informed me that every now again (usually a Saturday night when they are busy) the pub will loose all power. The Supplier is called out and usually replace the Fuse next...
Red Spot
Thread
advice
little
local
mains
new
phase
requires
supply
supply to
unusual
Hey everyone,
Came across a unusual type of cable today that i have never seen or heard of before & wondered if any light could be shed for me?
Its a mains feed from a meter position in a block of flats & on first glance looks like a 6 or 10 mm 3 core swa but is actually a outer sheaf & no...
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