MEXICOWANDERER wrote:
Having an AV pacemaker, I am careful about circuitry. Most non contact voltage sensors will alert around 30 volts. This is a very quick and easy way to detect and then stop alerting when efforts and being made to null the improper voltage.
Looks like we need to read the small print.
The run of the mill non contact voltage sensor appears to detect a Magnetic Field.
Seems the non contact voltage sensor that detects an Electric Field is not so common.
Non-contact Voltage Measurement Based on Electric-Field
EffectOn Edit: If it only detects a magnetic field, there needs to be current in the wire.
Where as, an electric field is present any time the wire is hot, current or not.
