Is it dangerous a low reading such as 1Kohm for IR I know you need to seriously investigate but if a 3 phase submersible pump is installed correctly wouldn’t the breakers/ fuses blow before the equipment is unsafe.
The measurements were at the motor. What do you mean by two faults. Obviously it’s not good but the pump is out of reach but has metal work connected to it. My understanding was if it’s well earthed the voltage should be minimal due to the resistance of R1 plus the 1000kohm. But also confused as to if it was to become dangerous wouldn’t the fuses take care of that considering the ZS is correct. Thanks guys
The measurements were at the motor. What do you mean by two faults. Obviously it’s not good but the pump is out of reach but has metal work connected to it. My understanding was if it’s well earthed the voltage should be minimal due to the resistance of R1 plus the 1000kohm. But also confused as to if it was to become dangerous wouldn’t the fuses take care of that considering the ZS is correct. Thanks guys
