Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
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title: Electrical Acceptance Testing
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### The testing organization shall be a NETA Accredited Company (NAC), or an owner-furnished in-house testing group meeting the same accreditation, instrument calibration, and technician certification requirements.
−### A specification that requires only a "NETA-compliant" testing firm allows non-accredited contractors to claim compliance. Accreditation shall be stated explicitly as a NETA Accredited Company, not as general compliance. {note}
+### A specification that requires only a "NETA-compliant" testing firm allows non-accredited contractors to claim compliance. Accreditation shall be stated explicitly as a NETA Accredited Company, not as general compliance.
```datasheet
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## Coordination with commissioning {toc}
−### Acceptance testing verifies equipment integrity (insulation, timing, contact resistance, settings) before energization. Commissioning functional testing verifies that energized systems perform their intended function. The two are sequential and complementary; treating them as one scope causes scheduling disputes with the commissioning agent. The boundary shall be documented so neither program assumes the other will perform a given test. {note}
+### Acceptance testing verifies equipment integrity (insulation, timing, contact resistance, settings) before energization. Commissioning functional testing verifies that energized systems perform their intended function. The two are sequential and complementary; treating them as one scope causes scheduling disputes with the commissioning agent. The boundary shall be documented so neither program assumes the other will perform a given test.
### Acceptance testing shall be completed and the results accepted before the affected equipment is released to the commissioning agent for functional performance testing under [[sync/commissioning]].
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## A specification that omits an explicit equipment inclusion list invites scope disputes: the testing organization tests the obvious major equipment, and panelboards, transfer switches, or drives are quietly energized without testing. The equipment list is the single most important thing the specifier controls, because everything not listed tends not to get tested. {note}
−## The default acceptance test scope is 100% of installed distribution equipment. Selective sampling shall be used only where the Engineer of Record has specifically authorized it and shall be defined by an explicit inclusion and exclusion list by equipment type and voltage class. {note}
+## The default acceptance test scope is 100% of installed distribution equipment. Selective sampling shall be used only where the Engineer of Record has specifically authorized it and shall be defined by an explicit inclusion and exclusion list by equipment type and voltage class.
## Equipment to be acceptance-tested shall be selected from the list below; any equipment present on the project and not selected shall be explicitly identified as excluded with the reason recorded.
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# Acceptance Criteria {toc}
−## Where both a manufacturer published tolerance and a NETA table value exist for the same test, the specification must state which governs and which takes precedence on conflict; otherwise the testing organization decides case by case and results are inconsistent across the project. {note}
+## Where both a manufacturer published tolerance and a NETA table value exist for the same test, the specification must state which governs and which takes precedence on conflict; otherwise the testing organization decides case by case and results are inconsistent across the project.
## The source of acceptance criteria shall be stated below. Where the selected source is silent on a given test, the other source shall apply.
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## Test voltage selection {toc}
−### The DC test voltage shall be selected from NETA ATS Table 100.1 according to the rated voltage of the equipment under test. {note}
+### The DC test voltage shall be selected from NETA ATS Table 100.1 according to the rated voltage of the equipment under test.
### Insulation resistance test voltage shall be selected per the following equipment voltage classes.
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### Insulation resistance on 600 V equipment shall be measured at 1000 V DC for a 1-minute reading, with a minimum acceptable value of 1 MΩ per kV of rated voltage.
−### New 600 V equipment in sound condition typically reads between 100 MΩ and 1000 MΩ; any reading below 1 MΩ is rejectable and shall be investigated before energization. {note}
+### New 600 V equipment in sound condition typically reads between 100 MΩ and 1000 MΩ; any reading below 1 MΩ is rejectable and shall be investigated before energization.
```datasheet
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## Relay test scope {toc}
−### The protective relay test scope shall be selected below. A functional trip test confirms the relay trips its breaker; characteristic verification confirms the timing curve; injection testing with a calibrated relay test set is required to confirm settings match the study. {note}
+### The protective relay test scope shall be selected below. A functional trip test confirms the relay trips its breaker; characteristic verification confirms the timing curve; injection testing with a calibrated relay test set is required to confirm settings match the study.
```datasheet
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## Test instruments and reference equipment shall be transported and stored so that their calibration is not disturbed, and any instrument subjected to physical shock shall be re-verified before use.
−## Equipment awaiting acceptance testing shall be protected from construction moisture and contamination; space heaters in switchgear and transformers shall be energized where provided, since damp insulation will fail insulation resistance and power factor tests that the equipment would otherwise pass. {note}
+## Equipment awaiting acceptance testing shall be protected from construction moisture and contamination; space heaters in switchgear and transformers shall be energized where provided, since damp insulation will fail insulation resistance and power factor tests that the equipment would otherwise pass.
# Warranty {toc}
## The testing organization shall warrant that all testing was performed in accordance with the specified acceptance testing specification and that the reported results accurately represent the as-found and as-left condition of the equipment.
−## Acceptance testing does not extend or alter the equipment manufacturer warranties; defects revealed by testing shall be corrected under the applicable equipment or installation warranty. {note}
+## Acceptance testing does not extend or alter the equipment manufacturer warranties; defects revealed by testing shall be corrected under the applicable equipment or installation warranty.