How do you test r1 r2 on a ring?
The Ring Circuit Test sequence:
- Within the distribution board, remove the Line, the Neutral and the Earth conductors from its terminals.
- Measure between Line to Line to get the reading for “r1”
- Measure between Neutral to Neutral to get the reading for “rn”
- Measure between Earth and Earth to get the reading for “r2”
What is an acceptable r1 r2 reading?
The R1 + R2 reading when the dimmer is bypassed, is a reasonable 1.7 ohms, which is protected by a 6A Type B circuit breaker. If your client intends to continue to use the dimmer switch, it may be acceptable to fit a suitably rated RCD to provide automatic disconnection.
What does r1 and r2 prove?
The R1+R2 test proves that the phase and earth connections in the circuit are sound. Its merits lie in it being a very low current dc test. If the connections are suspect and there is (for example) a layer of oxide formed over the terminations, it will give you a true high resistance.
What does R1 R2 mean?
For each outlet on a circuit, the resistance of both the live and earth conductors together (R1+R2) is measured back to the source. It also sometimes identifies socket outlets where a high resistance has built up in the socket itself, for example where a bad connection has blackened or damaged a terminal.
Is R1 R2 a live test?
For each outlet on a circuit, the resistance of both the live and earth conductors together (R1+R2) is measured back to the source. This test is usually repeated for the resistance of both the live and neutral conductors together (R1+Rn), although the result is generally not recorded on testing forms.
How I1 ir2 R1 R2?
there are two resistances. R1 and R2 connected in paralle. There is a battery of potential V connected in parallel with both resistances. If the two resistance are in series, I1 = I2 = I.
What does R1 stand for?
|R1||Region 1 (DVD region releases)|
|R1||Research1 (designates a top research university)|
Does R1 R2 confirm polarity?
The R1+R2 method can also be used to check the polarity of each circuit. When testing R1+R2 at each point it is also necessary to operate the switch in order to confirm an open circuit condition when the switch is in the off position, thereby confirming polarity.