Discuss What constitutes a new circuit? in the Electrical Forum area at ElectriciansForums.net

Reaction score
6
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 guys, any fellow electricians good with definitions know what exactly constitutes as a new circuit with references if possible.
I know changing an mcb requires an eic, but does that constitute as a new circuit?
Just want to specify it on my paperwork
 

loz2754

-
Esteemed
Arms
Reaction score
2,015
I'm not sure an EIC is necessary for a like for like MCB change.
However, if you're changing the characteristics of the circuit, by using a differently rated MCB and/or adding RCD protection, then yes probably do an EIC.

A new circuit is what it says it is - a new cable connected to the origin to a new protective device, supplying new electrical equipment. Based on the definition of a circuit in Part 2 of the regs.
 

Dustydazzler

-
Esteemed
Arms
Reaction score
4,208
A new circuit is everything has to be ‘brand new’ , new mcb / rcbo , new cabling , new accessories or switchgear etc

anything else is a modification / alterations
 

Dustydazzler

-
Esteemed
Arms
Reaction score
4,208
I should add if you even used 1m of the old cabling , then it’s not a new circuit imo

absolutely everything has to be brand new out the box
 
Reaction score
6
I should add if you even used 1m of the old cabling , then it’s not a new circuit imo

absolutely everything has to be brand new out the box
The issue i have is, im changing scheme providers, and they want me to test new circuits I've installed. One of the issues i have is, i literally focus on eicrs, and mainly do fault finding and replacing or altering existing circuits. Rarely go near rewires. Sometimes i do new circuits to the gardens, or something outdoor but have done none since covid and only focused on essential works.
 

timhoward

-
Esteemed
Arms
Reaction score
1,475
The issue i have is, im changing scheme providers, and they want me to test new circuits I've installed. One of the issues i have is, i literally focus on eicrs, and mainly do fault finding and replacing or altering existing circuits. Rarely go near rewires. Sometimes i do new circuits to the gardens, or something outdoor but have done none since covid and only focused on essential works.
Which scheme are you going to?
 

timhoward

-
Esteemed
Arms
Reaction score
1,475
I have just moved to them too. I'm assuming your question is about the initial assessment with them?
I know exactly what it says the initial assessment will entail and why you are concerned as I was a bit too.
But reality wasn't like that.
You'll get a phone call from the assessor in advance, and they are very aware of the limitations that covid had caused.
In my case I had a CU change I could show him, and he only wanted to see me do a ZDB and PSCC test.
For the first assessment they are more bothered about seeing insurance, calibration certificate of MFT, and evidence of qualifications you told them you have.
I'd say you are probably worrying a bit too much, they are human and want your money!
 

timhoward

-
Esteemed
Arms
Reaction score
1,475
This thread might be worth a read as I describe my NAPIT assessment in it.
 

Reply to What constitutes a new circuit? in the Electrical Forum area at ElectriciansForums.net

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