I am reading through a HIPOT / Dielectric Strength requirement that states in no so many words: "withstand damage when 1KVac is applied between all mutually insulated circuits"
I search every where and it must be my English but, I am not sure I understand what is meant by mutually insulated circuits.
Let's say I have a connector with the following pins going outside an enclosed box:
- 120Vac Phase A
- 120Vac Phase B
- Chassis Ground
- Sensor 1 (0-5Vdc)
- Sensor 2 (0-5Vdc)
- 208Vac "Line" Load
- 208Vac "Return" Load
What would be considered mutually insulated circuits?
Since I have surge protection on sensor lines a 1KVac will trip those and fail the test. If I remove the protection a 1KVac it might kill the circuit, and perhaps that is OK as long as it doesn't fail short?