Discuss Am2 socket circuit help!! in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

Hi. I've got a resit for the Am2 in a month as I failed the socket circuit. The problem is, I'm not sure how ! I've drawn a quick diagram of the wiring they give you and how I would wire it.
The top drawing is the diagram they give you..

DSC_0013.JPG
 
CK Tools :) The professionals choice when it comes to Electrical Tools
This official sponsor may provide discounts for members
D

Deleted member 26818

RFC
1) DB to 11,
2) 11 to 13,
3) 13 to 14,
4) 14 to 12,
5) 12 to DB.
 
O

Octopus

Are we assuming this has to be a ring? With only 4 sockets, I would go with a radial .....
 
You seem to have changed the layout between what you were given, and what you wired? Might be as simple as taking spur from the wrong point, even if wiring was electrically sound?
 

Richard Burns

-
Mentor
Arms
Esteemed
If you wired the circuit differently from the diagram they had provided for you, then this would indicate that you could not follow a specified wiring diagram and would cause you to fail.
No 12 being different seems to indicate a fused connection unit so I assume they wanted the circuit wired in accordance with the below diagram however the diagram posted above seems to indicate a non fused spur and just an FCU as part of the ring, but not matching either of your diagrams.
Ring Final Circuit FCU with spur socket.jpg
 

gazdkw82

-
Trainee
Is that what they actually give you?

Was the writing below (DB-11 etc) part of what they gave you?

To me it looks like a small ting and a spur?
 

Wilko

-
Arms
Esteemed
Hi Adam, this description from a student begins with "read the instructions because they may change" but here it is :

IMG_1149.jpg
 

Strima

-
Arms
Esteemed
One of the tested areas, as pointed out earlier in this thread, is following the design criteria. If you don’t follow it you fail.
 

Rpa07

-
Arms
Esteemed
I watched that @Wilko - it did make me wonder about a couple of threads that have come in regarding heated and melted plug tops and socket outlets - could it be a fake fuse providing a ‘one bar fire’ in the circuit under a loaded condition - next time I tell you, next time!
I shall sacrifice one of every packet of fuses from now on to see if the silica sand pours out - if I’m careful I can put it back in an glue it together again!
 

Pete999

-
Arms
Esteemed
There is your 1st mistake it's not a Ring Main, it's a Ring Final circuit
Yes it is old Mate, but trainees need to understand circuit designation. things like calling a RFC a ring main, might be just enough to tip the balance in the examiners thought process, just saying.
 

ipf

-
Mentor
Arms
Esteemed
Yes it is old Mate, but trainees need to understand circuit designation. things like calling a RFC a ring main, might be just enough to tip the balance in the examiners thought process, just saying.
Yep, it counts.....just like the 240v brigade.
 
You failed as you haven't followed the diagram, they are given to you 1 to see if your competent and 2 to ensure you can follow diagrams, wiring diagrams and schedules etc as they also give you the wiring code ie 6242y so if you don't follow the instructions you fail.
 
Lad I did my AM2 with failed his install because he used 1mm not 1.5. Like people are saying,it’s because it’s specified on the drawing that 1.5 is to be used. Follow everything to the letter. No deviations.
 
Hi. I've got a resit for the Am2 in a month as I failed the socket circuit. The problem is, I'm not sure how ! I've drawn a quick diagram of the wiring they give you and how I would wire it.
The top drawing is the diagram they give you..

View attachment 43630
I did this today and wired it the same? Is that the diagram on the spec as I didn’t check either WHAT DID U ACTUALLY FAIL ON.
 

Pete999

-
Arms
Esteemed
The clue must be in the breaker they give you....if its a 32 then ring it, 20 or 16 then radial
Not if its wired in 4mm2 that will be a 32Amp Radial Appendix 15 BS7671
 

Strima

-
Arms
Esteemed
I did this today and wired it the same? Is that the diagram on the spec as I didn’t check either WHAT DID U ACTUALLY FAIL ON.
The exterior socket IIRC is fed from a SFCU so should be a radial spur protected by a 13 amp fuse. Also the RFC was wired in 2.5/1.5 singles?
 
Yeah that’s correct. Goes from dB to first socket then to the FCU then to the 3rd socket then returns to the DB load side of the spur is the outdoor socket
 

Pete999

-
Arms
Esteemed
It’s a 32A rcbo it’s defo a ring wired in 2.5mm
I was responding to the post Whereby the poster said it it's a 32 Amp mcb then it's a ring, Radials will be 20 or 16 Amps which is misleading. If it says wired in 2.5mm2 and the OCPD is 32A then you are right An RFC Ring Final Circuit.
 
B

Bobster

During the AM2 exam you will be presented with 3 already mounted sockets and a fused connection unit which will have to be wired in a ring circuit with the exemption of one of the sockets which will have to be wired as an un-fused spur from one of the other sockets.

To do this simply follow the diagram below.

You will be required to use 2.5mm2 single core cables which must be placed in to the middle part of the compartmental trunking.

The wiring is really simple. You will start in the CU with 3 lengths of single core cables (brown, blue, yellow-green) from the protection device to the nearest socket. From here you will continue to the next unit which is the fused connection unit. From here to the last socket and from there back to the protection device in the CU. After this you will have to connect another length of 3 single core cables from one of the sockets to the IP rated socket which will be your spurred socket.

Taken from: 13A Socket Outlet Ring Circuit (AM2 Exam) | -----------.co.uk - http://www.-----------.co.uk/AM2-Exam-13A-Ring-Circuit.php

An from what I remember is the same as when my apprentices did it a few years ago.

Cable size, is important. As it is in singles, they have specified 2.5mm for all three conductors.
 

Reply to Am2 socket circuit help!! in the Electrical Forum area at ElectriciansForums.net

uHeat Banner - Forum Discount Available
This official sponsor may provide discounts for members

Select the ways in which you gain online business

  • MyBuilder.com

  • Federation of Master Builders

  • CheckaTrade.com

  • RatedPeople.com

  • TrustaTrader.com

  • Which? (TrustedTraders.Which.co.uk)

  • MyJobQuote.co.uk

  • Yell.com

  • Google Paid Advertising

  • Own Website with Natural Ranking (SEO'd website)

  • Social Media (Facebook Twitter Instagram etc)

  • Word of Mouth Only for me


Results are only viewable after voting.

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
Top Bottom