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Hi guys, just started rewiring my house, and noticed the sockets in the attic wired in radial instead of ring. Can I leave it in radial? There are only 2 sockets up there, unlikely there will ever be much load on it. I was thinking of wiring it 2,5mm2, (as it is now) on a 16A beaker. Any...
Hi all, just looking for advice prior to a potential upcoming project supply stables for horses.
The supply characteristics into the main house is TNCS and the stables are located approx 40m away from the building.
I am thinking of putting a 1w non-rcd protected consumer unit at supply end...
A customer has asked for a shaver socket to be installed in his bathroom.
The only issue is that there is no lighting circuit available (loft conversion above and no access to the eaves).
His idea was to come off a socket in a bedroom on the other side of a stud wall to the proposed...
Morning fellas. I know from regular visits to this website that we have some rather intuitive Sparkie’s on here so I thought I’d join in the fun.
I’ve got a rather basic question to start with but also where some of you can hopefully show your tips and tricks.
Im currently working on a...
18th Edition Training Course - Online with Offline Final Exam
Level 3 Award in the Requirements for Electrical Installations BS 7671: 2018
Online 18th Edition Course – Available From July 2018
This course has been developed with the aim of enabling the candidate to demonstrate that they are...
Hi...keen amateur here......don't crucify me for asking!! I understand Ohm's law and I understand the mechanics of measuring end to end on ring final and then joining incoming live to outgoing neutral etc, and I know that this configuration gives a figure of 8 (in fact can be straightened to...
Is it acceptable to wire a hand dryer from a ring final in to a 13 amp FCU. The ring main in question has 30MA RCD protection.
Or, is it best to wire a new radial circuit for it??
There is a socket I can spur off that is easy to get to.
Just looking for some reassurance on a job I've looked at today. My status is that I am trying to stay within the realms of 'Minor Works' until I get a bit of experience under my belt. Conscientious decision - but everywhere I go it seems that notifiable work is needed as well...
Why fuse is no longer use in Final Circuit Protection. Instead, Circuit breakers are used.
So far, I know that CB is more sensitive than fuse.
Can someone depicts any reason and their respective curves.
Hi all. Love the forum by the way.
I do have a question though...
I have just visited a house (on a Sunday!). Customer is asking for additional sockets onto 32amp ring final. Circuit is 30mA RCD protected. Wiring is 2.5mm/1.5mm tinned copper.
Thought I’d better do a live Zs test.
Zs = 1.29...
So with megger leads they are not too happy in a kewtech socket tester so what do you do when you want to do this use kewtech leads on the megger? The megger leads clearly do not fit into the kewtech. Just use the plug lead?
Just a question relating to SY cable and the use of SY cable. My boss his carrying out a EICR for a industrial premise and coming across a lot of SY cable. These cables are used for final circuits and distribution circuits. I know that BS7671 list SY cable as non - standard cables and...
I am planning to move a socket outlet. The CU is largely unlabelled so don't know which 32 MCB to switch off. There are 2 x 32a MCB. All other mcbs are for lights (6a) and a dedicated immersion (16a).
To isolate the circuit, I tried switching off the first of the two 32a mcb which isolated some...
After coming across countless faults in domestic premises regarding ring final circuits, I reckon they should scrap em...
Gets frustrating when you go to check
continuity and there is nothing between each leg. Or you get a call to check a burning smell from the C.U and once again a broken ring...
Testing a ring final circuit today. R1+R2 is fine, same as end to end r1 rn and r2.
However IR test is coming back 1.87M ohm. I split the circuit and located a section (one side of the ring is clear >999).
The customer doesn't want any walls or ceiling touched. As this is greater than 1M ohm...
Hope someone can help. When finding the cabling current capacity for a ring (wired in 2.5), would you use the data for 4mm in either/or table D5 of BYB or table 7.1 (11) in the OSG ? As the ring circuit is in effect 5mm !
Looking at the OSG ref methods; a 2.5 with ref method 101 says 17A...
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