Arotake Ngā Hua Whakamātautau
Tirohia ngā hua whakamātautau ine ki ngā rohe Section 8.
Reads Electricity (Safety) Regulations 2010, AS/NZS 3000:2018 and AS/NZS 3017:2022. Tables checked 26 Sept 2026.
Whakamātau mahi 6
Ka whakakī ia mahi i ngā uara tauira. Whakakapia ērā ki ō uara.
- Check the test results of a new circuitWhether the insulation, earth, Zs and RCD readings pass on a 16 A circuit.
- Check a low insulation readingWhether 0.5 MΩ passes on a final subcircuit.
- Check Zs on a 32 A circuitWhether 0.6 Ω passes on a 32 A C‑curve circuit.
- Check a slow RCDWhether a 30 mA RCD that trips in 45 ms passes.
- Check a five-second circuitThe Zs limit for a submain with a 5 s disconnection time.
- Check earth continuity on a lighting circuitWhether 0.9 Ω passes on 1.5 mm².
Ngā whakauru
He tauira mahi me ngā whakauru taunoa.
- Taputapu whakamarutanga
- Pōwhiri momo B
- Reiti taputapu
- 20 A
- Disconnection time
- 0.4 s
- Kaikawe active
- 2.5 mm²
- Tauira whakamātautau whakamaherehanga
- Ara iahiko whānui i te 500 V
- Tirohia te ātete whakamarumaru
- Āe
- Ārai whakamaherehanga i ine
- 50 MΩ
- Tirohia te tūturutanga whenua
- Āe
- Ārai i ine o te kaikawe whenua o te ara iti
- 0.3 Ω
- Tirohia te loop impedance
- Āe
- Zs i ine
- 1.2 Ω
- Tirohia te wā tārewa RCD
- Kāo
- Pōtaetanga kua whakamanahia
- Āe
Whakamanatanga
Angitu
- Aukati insulation
- Pāhi. 50 MΩ, iti rawa 1 MΩ
- Earth continuity, subcircuit earth conductor
- Pāhi. 0.3 Ω, nui rawa 0.9 Ω
- Earth fault loop impedance
- Pāhi. 1.2 Ω, nui rawa 2.9 Ω
He āwhina hoahoa tēnei hua. Manatokohia ki te paerewa o nāianei.
Ngā hīkoi tātaitanga
- Rohe ōkeroa insulation1MΩ
AS/NZS 3000:2018 Cl 8.3.6
- Voltage whakamātautau500V
AS/NZS 3000:2018 Cl 8.3.6
- Rohe tuku whenua, subcircuit earth conductor0.9Ω
AS/NZS 3000:2018 Table 8.2
- Ārai ara hapa whenua nui rawa2.9Ω
AS/NZS 3000:2018 Table 8.1
- Rphe nui rawa i te 80 ōrau o te au reiti1.8Ω
AS/NZS 3000:2018 Table 8.2
- Re nui rawa i te 80 ōrau o te au reiti0.9Ω
AS/NZS 3000:2018 Table 8.2
- Rohe ōkeroa insulation, AS/NZS 3017:20221MΩ
AS/NZS 3017:2022 Cl 4.5.4
- Rohe whenua matua me te here, AS/NZS 3017:20220.5Ω
AS/NZS 3017:2022 Cl 4.4.4
- Polarity me ngā hononga ara hikoKua whakamanahia
AS/NZS 3017:2022 Cl 4.6.4
- Kua whakatutuki ngā tirohanga3 of 3
Mō tēnei tātaitai
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.
- 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.
- 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.
- Loop impedance. It reads the maximum Zs for the device and disconnection time from Table 8.1.
- RCD trip time. It compares your measured time with the limit for the rated residual current.
- Polarity. You confirm polarity and connections. The tool does not measure them. It points at AS/NZS 3017:2022 Cl 4.6.4.
- 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.
Pātai
He āwhina hoahoa te hua. Manatokohia ki te paerewa o nāianei.
He aha te mahi a te taputapu Ngā Hua Whakamātautau?
Ka whakataurite te taputapu i ngā uara ā-ruri i tangohia e koe i te wāhi ki ngā rohe whakaetanga o AS/NZS 3000 Section 8. Ka tirotiro i te aukati insulation, te earth continuity, te loop impedance me te wā trip RCD. Ka pūrongo ia tirotiro i te pass, i te fail rānei. Ko te whakatau kātoa he pass, he fail, he kāore i whakamātauria.
He aha te aukati insulation iti rawa?
Ka hoatu a Clause 8.3.6.3 i te 1 megohm i te 500 V tōtika. Ko tētahi whakarākau wera sheath he 0.01 megohm, ā, ko tētahi hononga whenua mahi RCD he 0.05 megohm. Ina tūturu te taputapu aukati pīkiki, te taputapu hiko, ka taea te whakaiti i te voltage whakamātau ki te 250 V.
Ko tēhea tepe loop impedance e whakamahia ana e ia?
Ko te Zs nui rawa tūtohi mai i AS/NZS 3000:2018 Table 8.1 mō te momo taputapu, te reiti me te wā disconnection. Ka whakaatu anō te taputapu i te Table 8.2 Rphe nui rawa me te Re i te 80 ōrau o te iahiko rating, ā, he whai hua ēnei ina whakamātau kāore he uta.
He aha te kī a te taputapu he Not verified?
Kāore i taea te mahi i te whakamātautau i tono ai koe. Kāore he rārangi a Table 8.1 mō te reiti taputapu, kāore rānei tētahi whakamātautau i kōwhiria. Kāore e kī te taputapu i te pass mō tētahi arotake kāore i mahia e ia. Whakarerekētia te reiti, kia whakamahia rānei te taputapu loop impedance.
Kei hea te urunga o AS/NZS 3017:2022?
Ka hoatu e AS/NZS 3017:2022 ngā tikanga mō ia whakamātautau manatoko. Ko āna rohe insulation me te whakawhenua matua e rite ana ki Section 8, nā reira ka whakahua te taputapu i ngā mea e rua. Ka whakapōtaki tōna ripanga loop impedance ki te tekau tōrua, nā reira ka pupuri te taputapu i Table 8.1 mō te Zs.
Ngā tauira mahi
- A test sheet for a house boardA test sheet for a six-circuit New Zealand house board, with the tests in the AS/NZS 3017 order and the limit for each reading, then the Australian sheet.
- Reading the wiring in an older houseA 1970s New Zealand house with yellow actives, a green earth and a black neutral. What each colour can be, what may stay, and how to sleeve new terminations.
Kōrero o muri
- The order of verification testsWhy AS/NZS 3017 tests earth continuity before insulation and loop impedance before RCDs, which circuits take which test, and where each limit comes from.
- Testing to Section 8: what each test provesThe Section 8 test sequence, what each test shows, and how a calculated earth fault loop impedance compares with the value a tester reads on site.
Ngā Clause me ngā Table e pānuitia ana e tēnei taputapu
- AS/NZS 3000:2018 Cl 8.3Verification testing
- AS/NZS 3000:2018 Cl 8.3.6Insulation resistance test
- AS/NZS 3017:2022 Cl 4.4.4Earth continuity results
- AS/NZS 3017:2022 Cl 4.5.4Insulation resistance results
- AS/NZS 3017:2022 Cl 4.6.4Polarity and circuit connection results
- AS/NZS 3000:2018 Table 8.1Maximum earth fault-loop impedance for the total circuit
- AS/NZS 3000:2018 Table 8.2Maximum resistance of final subcircuits at 80 % rated current
- Cl 8.3.5.2 and 8.3.6.3Insulation resistance and earth continuity verification limits
Ia Clause me Table, me te pēhea i manatokotia ai ia tētahi
Ngā tūtohi i arotakehia whakamutunga i te 26 Sept 2026.
Ngā taputapu hononga
- Tātaitai earth fault loop impedanceCheck earth fault loop impedance against the maximum Zs.AS/NZS 3008.1.2AS/NZS 3008.1.1AS/NZS 3000
- Rārangi whakamātautau mō tētahi papa hikoPrint a board test sheet with the limit for each test.AS/NZS 3017AS/NZS 3000Electricity (Safety) Regulations 2010
- Kaiwhakarerekē rahi taura imperialFind the device rating for an old imperial cable.AS/NZS 3000
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