Bill,
I said;
"but when someone mistakes a white for a hot"
but it should have said;
but when someone mistakes a white for not being hot
Best,
Will
*********** REPLY SEPARATOR ***********
On 10/2/05 at 5:10 PM Will Matney wrote:
>Bill,
>
>I can tell you that the NEC sure does frown on using white as a hot.
>There's only one permissible way they allow it and that is for the switch
>leg on a wall controlling an overhead lamp. There you run the hot to the
>white of the switch and bring it's black back to the black of the lamp.
>Using white for a hot in a power cord is the same as using the green as
>laid out by the NEC. Most pigtails have no color code like the grey ones
>but mark the outside with some ridges for the neutral. Then when using
>them your supposed to ad an external ground wire from the chassis to
>ground. That's not the way I spell it out but the way the NEC does. The
>wire don't know what color it is, but when someone mistakes a white for a
>hot, it could cause harm if they didn't know it was tied to hot.
>
>Best,
>
>Will
>
>
>*********** REPLY SEPARATOR ***********
>
>On 10/2/05 at 4:53 PM Bill Coleman N2BC wrote:
>
>>It is quite OK to use the white on one of the phases in a 240V hookup.
>>It
>>is never OK to use green to anything other than ground.
>>
>>Most modern amps have no need for neutral when wired for 240V. If
>neutral
>>is indeed needed for something inside that is 120V only then the only way
>>is
>>to use a 4-wire cord.
>>
>>Bill N2BC
>>----- Original Message -----
>>From: "Will Matney" <craxd1@verizon.net>
>>To: <amps@contesting.com>
>>Sent: Sunday, October 02, 2005 3:58 PM
>>Subject: Re: [Amps] Power cord to use when converting AL-80B to 240 volts?
>>
>>
>>> Colin,
>>>
>>> That's true as long as the cable is rated for 220 Vac, and you don't
>>want
>>> to add a ground with the neutral. To do it right, I'd want a three wire
>>> with ground cord. Most 120 Vac cords only have three wires. To use a
>120
>>> Vac cord on 220, you'd have to use the ground wire for the neutral
>which
>>> most of the time is a green wire. That is if you intend on using
>>anything
>>> on the 120 Vac line. Plus your using a white wire as a hot. The correct
>>> way is have a black and red wire as hot, white as the neutral, and
>green
>>> to ground.
>>>
>>> Best,
>>>
>>> Will
>>>
>>> *********** REPLY SEPARATOR ***********
>>>
>>> On 10/2/05 at 12:47 PM k7fm wrote:
>>>
>>>>If the mains cable for the amp is designed for 120 volts, it will handle
>>>>240
>>>>volts. The current is 1/2 at 240 volts, so you could actually make the
>>>>cable smaller.
>>>>
>>>>Regarding voltage rating, each wire is 120 volts to ground, so the
>>>>insulation need be no higher than for 120 volts (insulation between
>wires
>>>>is
>>>>doubled because both wires are insulated.
>>>>
>>>>Colin K7FM
>>>>
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>>>>http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
>>>
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>>>
>
>
>
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