[Elecraft] KPA1500 AC Mains wire colours

[Fred Jensen]

Jim is using the NEC terminology of "phase" meaning any hot conductor, 
not that two of the three phases are brought into service entrance.

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 5/20/2019 8:41 AM, Chris Cox, N0UK wrote:
> Sorry, I'm not being pedantic but standard US home supply is NOT two phaes
> plus ground, it is still single phase 120-0-120 Vac with the 0 volt being
> grounded and tied to the neutral line for each of the two anti-phase hot
> lines.
>
> The power is distributed around the area as three phase and each of those
> three phases is then typically split between three properties at the
> outdoor powerpole.
>
> --
> 73 Chris Cox, N0UK, G4JEC
> chrisc at chris.org
>
> On Sat, 18 May 2019, Jim Brown wrote:
>
>> 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
>>
>>