Another straight forward job today has turned out to be a right mess once again so I thought I'd get some thoughts on the following before I start !
So an old MK LN59 board, feed to garage sockets on a single 2.5mm t&e from a 15A mcb and also spurred to feed a boiler on S plan,
Next ring final...
Hi,
I am a newbie to this site, not an electrician but looking or advice. Please excuse any incorrect electrical language: I'll do my best to describe our strange electrical problem.
Sometimes when we are cooking, the fuses for downstairs & upstairs sockets (2 circuits) trip. It's when we use...
All domestic electrical installation undertaken.
Complete and part rewires
New Circuits, alteration and additions to existing circuits.
Outside equipment installed, sockets, lights and power to ponds, gardens and outhouses.
Installation of domestic appliances (cookers, ovens, hobs, heaters...
toast
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I am busy doing some work with a local contractor to get some up to date hands on experience.
whilst doing a EICR today i come across a CU with SPD in. The property is a recently built 5th floor flat about to be let on a new tenancy and meets the criteria for requiring a SPD. The whole set up is...
Graham Hyde
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Hi,
Got a Domestic TT system which needs a new 100ma S Type RCD. What are your thoughts on this being placed in an Insulated or metal enclosure?
It is not in an external meter cupboard so falls under 421.1.201 (within domestic).
Thanks,
saspm
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Did an EICR in a domestic property, earthing arrangement was a TN-S with a Ze of 0.51 ohms.
There are 2 ring final circuits protected by 32amp 60898 type B mcbs. Both circuits have additional protection from a 30mA RCD.
My Zs readings for the circuits are 1.63 ohms and 1.89 ohms.
My question...
just done a EICR. good installation, approx. 10 years old. 16th ed.split board, lighting circuits non-RCD, on TT earthing. my query is this:
the Zs readings are high, due to the high Ze, insofar as , e.g. lighting circuits on 6A MCB each have a Zs higher than the max. permissible . should I...
been to look at a job , customer needs sub mains and meter moving to the under stairs from main cut out from hallway a new 100 amp cu . 16mm twin earth do I need separate cpc for that according to table
54.7 16 mm cpc any thoughts on this .
Afternoon men (already bored of the football!)
for radials circuits that are to be installed as 100,101,102,103-table F6 is your friend!
but when it comes to ring circuits wired in 2x 2.5mm on a 32amp it always confused me a little!
-I know that 20amps per leg is the magic number- so the...
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