R1 and r2

[Cj24]

How do you do r1 and r2 tests?

 

[Sintra]

The R1+R2 test sequence for radial final circuits
Securely isolate the supply.
Disconnect any bonding connections that could affect the test readings.
Make a temporary connection at the ccu between the phase and cpc of the circuit to be tested.
Using a low ohms continuity test meter measure the resistance between phase and cpc at each point on the circuit also confirming polarity.
The R1+R2 is the reading taken at the furthest point on the circuit.
Re-connect any bonding conductors disconnected for the test.
Remove the temporary connection at the ccu.

 

[Cj24]

Thank you

 

[nickblake]

Just mentioned that in your last post Disconnect the supply joint the live and cpc together locate the furthest point of the circuit and test between the live and earth or on a ring you have 2 lives and 2 earths and 2 neutarls if you join the oposit cpc's and lives together ie live of cable 1 to cpc of cable 2 and live of cable 2 to cpc of cable 1 then then test at each socket and move round the ring the readings will increase untill you get to the mid point of the ring then it will start to decrease the mid poit is where you take your R1 R2 readings from

 

[Guest123]

r1 and r2 or R1+R2

 

[Cj24]

R1 n R2