[Amps] 220V wiring: Was Question about safety ground connection

[Peter Chadwick]

Rich said:

>Bonding the enclosure to the neutral wire insures that the enclosure 
can not become a shock hazard if the safety-ground wire is severed by 
an anomaly.<
But an open neutral in such a case leaves the enclosure at some undetermined voltage above ground. Depending on how good the neutral grounding is at the service entrance, an open neutral in the feed to the property can float enclosures above ground. It comes down to the probability of opening a safety ground or a neutral, and if they run together, the probability is that severing one severs both.
73

Peter SM/G3RZP