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How do you test r1 r2 on a ring?

How do you test r1 r2 on a ring?

The Ring Circuit Test sequence:

1. Within the distribution board, remove the Line, the Neutral and the Earth conductors from its terminals.
2. Measure between Line to Line to get the reading for “r1”
3. Measure between Neutral to Neutral to get the reading for “rn”
4. 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?

Acronym Definition
R1 Release 1
R1 Region 1 (DVD region releases)