Aico Carbon Monoxide Detectors
This official sponsor may provide discounts for members

Discuss Expected circuit length (R1+R2) in the Electrical Forum area at ElectriciansForums.net

Zdb

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

Came across this table from on old thread: Is there a table of expected R1+R2 results in BS7671? - https://www.electriciansforums.net/threads/is-there-a-table-of-expected-r1-r2-results-in-bs7671.103412/

e432b9e278d09c539438896dbd0daa01.jpg

I'm just wondering if anyone has the original or a more detailed version that they wouldn't mind sharing?

TIA
 
Electrical2Go - Online Electrical Supplier
This official sponsor may provide discounts for members

Midwest

-
Arms
Esteemed
Doesn’t the OSG have some tables?

I had an NIC initial testing course book, with tables for R1+R2, including ones for RFC’s.
 

telectrix

-
Mentor
Arms
Esteemed
i have a pdf with that and other useful info. pm me your email and i'll send you it.
 

Paignton pete

-
Arms
Esteemed
Doesn’t the OSG have some tables?

I had an NIC initial testing course book, with tables for R1+R2, including ones for RFC’s.
I think of the top of my head it’s table I1.
 

Paignton pete

-
Arms
Esteemed
Yes it’s I1,
but it only gives miliohms per meter for line conductors of various sizes.

You can work out the total for whatever length from that.
 

Zdb

-
  • Thread Starter Thread Starter
  • #9
Thanks, Tel for the seful info.

I have attached a clearer image of the tables below for anyone else who might find it useful.

Screenshot_20190721-093935_Drive.jpg
 
Wetroom Store - Network Wetroom Suppliers
This official sponsor may provide discounts for members

Reply to Expected circuit length (R1+R2) in the Electrical Forum area at ElectriciansForums.net

Aico Carbon Monoxide Detectors
This official sponsor may provide discounts for members
Top Bottom