Hi All,
I'm looking at installing an induction hob in my kitchen (upgrade from gas) and I gather that it can be added to the cooker circuit if there's enough capacity.
In the fuse box and at the cooker end, the cooker circuit is wired in with 6sqmm cable, but only has a 16A MCB which I gather...
I just finished a garden room supply. The customer already had a CPN garage consumer unit that the last sparks left there, brand new in box, and with some misgivings I agreed to use it.
It came to testing.
Zs@DB of 0.3 ohms in garden room.
CPN RCD main switch tripped x1 at 21ms
The lighting...
Hi guys
Have a circuit its OCPD is a C type 80A 10ka 60898 MCB with a pfc of 1.11ka. On the log log graph for this device I’m struggling to understand the time for it. It only goes to 800a?
I’ve spoken to the NICEIC who say it would operate withing 0.1 seconds but I’m struggling to see how...
Hi
I'm supervising maintaining a building powered by a 1250 Amps and i had a total blackout twice within a week.
Checking the MCB and it's healthy and checking the REF is also fine and it has been reset normally.
What would make such MCB trip?
Sorry but no photos are allowed to post by the...
For example the house today had two lighting T&E in the same MCB. I know it's fine, but as I test both 'radials' where and how do we enter them on an EIC/EICR form on the NICEIC online certification thing?
I can make extra lines on the circuit chart, but do we write them down as MCB-8a MCB-8b...
Hi, I recently discovered at my brother in laws that he has a circuit which feeds a outbuilding, but we also discovered that it’s attached to a small part of the downstairs sockets towards the rear of the house! The concern is this outbuilding then goes on to feed another small shed.. is this...
Good evening,
I wondered how the MCB between RCD and the Main switch is wired while watching this video. Photo attached.
I assume a busbar link is connected to the main switch and mcb. Do the line conductors and the busbar connected at the same terminal and then go to the RCDSs?
Link to the...
I have by mistake used 6amps C grad MCB on a 2000-watt dishwasher. though I was asked to put 10 amps. but it is running properly.
how it is possible and is it safe?
thanking you.
Can i just check something. If a rat decides to chew a cable will it trip the MCB or RCD ?
I ask because I had one house recently that had a randomly tripping MCB and it turned out to be a chewed cable. I was surprised as i would have thought it would trip the RCD but it never did. A chewed...
Does this matter? I've fitted a Fusebox consumer unit and I didn't have enough 32A MCB's but too many 6A's. The SPD is fed from a 32A one, what's the deal with swapping them around. They are voltage operated not current operated so should be fine right?
Just reading through my Student's Guide and wondering about nominal amperage.
If guaranteed trip is 5x nominal amperage, what's to stop 2.5mm cable on a 20a radial circuit from running at 70a or something and completely destroying the cable/potentially your house?
Hello
I have moved into a new house and the electric meter and consumer unit are under the stairs. What i want to do is put a door there so can use for storage. The problem i have there is no lighting there. So i want to install a ceiling pendant, the easiest way i can see doing it is running...
Hi Everyone, I got some Power Module damaged cause by Voltage Surge. My device protected by 25A MCB and Fuse. Why my device still damage although its already have the protection? Any other way to prevent this from happening again?
Long shot but thought I’d try, have a lighting circuit that trips the RCD as soon as the neutral touches the neutral bar for said RCD. Bypass that and it works fine just on an MCB so would think earth-neutral fault, but doing an IR test between N and E shows as a pass (>99M ohm). So unsure of...
The hottub is 8.1kw so will be 35A max output , I’m going to put it on 6mm 3core swa to an isolator then to the hottub. Would a 40a b type be sufficient for this ? Or would it be better to put it on a 40a c type mcb? Thanks
I am doing a campervan conversion and have a 16A/250V shore power connection coming into a consumer unit which has two breakers - one for the AC input into a Victron Multiplus inverter and the other to go to a plug socket for non inverter loads. I would like to know how to size the MCB for the...
I have a 40amp RCD downstream of a 50a MCB (10mm csa cable) should the MCB be lowered to protect the RCD from overload?
If so why does this not apply to RCD devices in Split Load boards
Evening , got to wire in a smeg 19.5kw
TR4110IGR
Using diversity I work it out to :
Total load 84.7
Diversity: 10amp
30% of 74.7= 25amp
Total = 36
I would fit 40-45amp breaker on 10mm clipped direct. No insulation and no cooler socket ?
Am I missing something with Smeg and why they want 53...
I'm following a spark who used an existing Panel Heater circuit, for new gas boiler circuit 6 months ago. The panel heaters were removed, so it's now a dedicated boiler circuit. I'm doing an EICR.
I've found a number of faults;
1. No grommet in Consumer unit knock out, used for gas bonding (It's...
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