Select a suitable insulation test and understand what a high resistance reading cannot prove.
Insulation resistance assesses unwanted conductive paths between conductors. Polarity checks whether conductors and single-pole devices are connected in the intended places. A high insulation reading does not prove correct polarity.
Read the full Inspection & Testing note with Premium
You’re reading the free preview. PlumbRevise Premium unlocks the complete write-up, the worked detail for every Inspection & Testing note — plus timed tests on every module.
Plenty of modules are free to read in full.
Something wrong, unclear or out of date? Report an issue with this note.