[Elecraft] KPA1500 AC Mains wire colours

[Jim Brown]

On 5/18/2019 4:28 PM, Clay Autery wrote:
> 230VAC on 3 wires?  Never knew they did 3 wire 220V....  I always 
> assumed it was still 2 hots and ground (plus an optional neutral).

Two hots (phases) and ground is three wires. Single-phase power normally 
comes into a building in North America as two phases and a neutral. We 
connect a 240V load between the two phases, and a 120V load between one 
phase and a neutral. It's not unusual to feed a sub-panel with both 
phases, neutral, and ground so that the panel can feed both 120V and 
240V loads. The key here is that loads must NEVER be connected between a 
phase and ground, ALWAYS between phases or between phase and neutral.

You probably know that EU runs on 230/240V, wired phase, neutral, and 
ground.

73, Jim K9YC