On 08/07/2017 07:07 PM, John Andersen wrote:
But more to the point there are differences in grounding practices in some parts of the world: https://en.wikipedia.org/wiki/Ground_and_neutral#Grounding_systems TN-C and TN-S.
Quoting above....
In the TN-C system, a common conductor provides both the neutral and protective grounding. The neutral conductor is connected to earth ground at the point of supply, and equipment cases are connected to the neutral. The danger exists that a broken neutral connection will allow all the equipment cases to rise to a dangerous voltage if any leakage or insulation fault exists in any equipment. This can be mitigated with special cables but the cost is then higher. https://en.wikipedia.org/wiki/Earthing_system#IEC_terminology
North America would be TN-C-S, with separate neutral and ground wires, joined only at the power entrance inside, but the power is delivered to the building with a ground wire and hot wires, but no separate neutral. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org