R1 + R2 methods (r1 r2 link) | on ElectriciansForums

Discuss R1 + R2 methods (r1 r2 link) in the Electrical Testing & PAT Testing Forum area at ElectriciansForums.net

Joined
Jan 5, 2020
Messages
5
Reaction score
0
Location
UK
Hello,

Hoping to get some advice on R1 + R2 radial testing and best practise.
When doing R1 R2 instead of taking cables from mcbs/rcbos and the earths out the terminal or placing any temporary links in the board.
Iv seen the R1 R2 link online that comes with a croc clip one end and a PZ2 the other end, so instead of taking the board apart using these seem a good option.
How does this work with parallel paths?
Are these a good option instead of disconnecting cables from the board?
 
Hello,

Hoping to get some advice on R1 + R2 radial testing and best practise.
When doing R1 R2 instead of taking cables from mcbs/rcbos and the earths out the terminal or placing any temporary links in the board.
Iv seen the R1 R2 link online that comes with a croc clip one end and a PZ2 the other end, so instead of taking the board apart using these seem a good option.
How does this work with parallel paths?
Are these a good option instead of disconnecting cables from the board?
I know the link kits you are describing, the PZ2 end is magnetic so it sticks to ferrous terminal screws.
I haven't used them myself, have heard mixed reviews, some are of poor quality by the sounds of it.

So if the purpose of the links is to avoid dismantling entirely, you will not elimate any parallel paths.

Attempting to remove parallel paths will always involve dismantling and attempting to isolate those paths where you consider relevant.

The parallel paths will depend on the type of installation and wiring system of course, and may include:

Metallic conduit or trunking systems
Cable armourings in SWA (depending on whether you intentionally want to include or exclude the armour as the protective conductor for design/verification calculation purposes)
Metal clad accesories serving different circuits which are joined with couplers etc.
Metal back boxes with multiple circuits present - e.g. light switch positions serving multiple circuits
Metallic pipework connected to items of fixed equipment such as water pipes, gas pipes
Main and supplementary protective bonding conductors
Structural steel to which containment or equipment is mounted
Any unseen/unknown fortuitous paths to earth

For this reason, if I have the time, and it is safe to do so (due to working light, accessibility etc.) I will remove both the line and cpc and join them together. Earth connections to boilers, water heaters etc. on the circuit under test can be temporarily disconnected, as can main or supplementary bonding if the installation is switched off and isolated.
 

Reply to R1 + R2 methods (r1 r2 link) in the Electrical Testing & PAT Testing Forum area at ElectriciansForums.net

News and Offers from Sponsors

  • Article
Join us at electronica 2024 in Munich! Since 1964, electronica has been the premier event for technology enthusiasts and industry professionals...
    • Like
Replies
0
Views
625
  • Sticky
  • Article
Good to know thanks, one can never have enough places to source parts from!
Replies
4
Views
1K
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
2K

Similar threads

Thanks all for your comments, advice and suggestions. The following is probably pretty boring for most, and is simply a summary of how the job...
Replies
8
Views
961

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top