टेस्ट परिणाम चेकर

How this is calculated#

The tool compares your measured test values with the limits for the circuit. Tick the tests you did. The tool checks only those.

1. Insulation resistance. The tool reads the minimum and the test voltage from AS/NZS 3000 Cl 8.3.6. It also reads the AS/NZS 3017:2022 figure from Cl 4.5.4.
2. Earth continuity. It reads the limit for the earth conductor size from Table 8.2. It also reads the limit at 80 % of the rated current. AS/NZS 3017:2022 Cl 4.4.4 gives the main earth and bonding limit.
3. Loop impedance. It reads the maximum Zs for the device and disconnection time from Table 8.1.
4. RCD trip time. It compares your measured time with the limit for the rated residual current.
5. Polarity. You confirm polarity and connections. The tool does not measure them. It points at AS/NZS 3017:2022 Cl 4.6.4.
6. Verdict. The result passes only when every test you ticked passes.

Worked example#

• Lighting circuit, 2.5 mm² on a 20 A B curve breaker. Insulation is 50 MΩ against a 1 MΩ minimum. Earth continuity is 0.3 Ω against a 0.9 Ω maximum. Zs is 1.2 Ω against a 2.9 Ω maximum. The verification passes.

Limits#

The tool does not take your readings. It does not correct a loop reading for temperature. A pass here is not a certificate. A competent person signs the verification. Use the loop impedance calculator to predict Zs before the test.

See also: Testing to Section 8, Earth fault loop impedance and maximum Zs and Table 8.1 maximum Zs explained.