I want to use a submersible pump that I bought in Canada 230 volts 60
hz with 2 wires (one red and one black) plus a green ground, in the
Philippines where the 220 volts is delivered with only one wire
(black). It should work, same voltage but how to connect?

On Wed, 08 Aug 2007 00:57:00 -0700, YN <noel4881@yahoo.com> wrote:

>I want to use a submersible pump that I bought in Canada 230 volts 60
>hz with 2 wires (one red and one black) plus a green ground, in the
>Philippines where the 220 volts is delivered with only one wire
>(black). It should work, same voltage but how to connect?


Now I ask, how can the Philipines 220V ac be supplied by a single
wire? Nowhere on earth would a single phase with earth return circuit
be allowed for ac mains supply voltages. There must be a LINE wire
(active phase) and a separate NEUTRAL return wire.

YN wrote:

> I want to use a submersible pump that I bought in Canada 230 volts 60
> hz with 2 wires (one red and one black) plus a green ground, in the
> Philippines where the 220 volts is delivered with only one wire
> (black). It should work, same voltage but how to connect?

I'd love to know how the Philipines have managed to deliver electricity down one
wire !

Can you elaborate slightly ?

Graham

On Wed, 08 Aug 2007 11:13:09 GMT, Ross Herbert
<rherber1@bigpond.net.au> wrote:

>On Wed, 08 Aug 2007 00:57:00 -0700, YN <noel4881@yahoo.com> wrote:
>
>>I want to use a submersible pump that I bought in Canada 230 volts 60
>>hz with 2 wires (one red and one black) plus a green ground, in the
>>Philippines where the 220 volts is delivered with only one wire
>>(black). It should work, same voltage but how to connect?
>
>
>Now I ask, how can the Philipines 220V ac be supplied by a single
>wire? Nowhere on earth would a single phase with earth return circuit
>be allowed for ac mains supply voltages. There must be a LINE wire
>(active phase) and a separate NEUTRAL return wire.

You kids have it so EASY. Why, when we were young, our AC power came
on just one wire!

--
Al in St. Lou

On Wed, 08 Aug 2007 12:42:05 +0100, Eeyore
<rabbitsfriendsandrelations@hotmail.com> wrote:

>
>
>YN wrote:
>
>> I want to use a submersible pump that I bought in Canada 230 volts 60
>> hz with 2 wires (one red and one black) plus a green ground, in the
>> Philippines where the 220 volts is delivered with only one wire
>> (black). It should work, same voltage but how to connect?
>
>I'd love to know how the Philipines have managed to deliver electricity down one
>wire !
>
>Can you elaborate slightly ?

I'm still wondering how they measure the voltage.

--
Al in St. Lou

On Thu, 09 Aug 2007 20:18:13 -0500, Al in Dallas
<alfargnoli@yahoo.com> wrote:

>On Wed, 08 Aug 2007 11:13:09 GMT, Ross Herbert
><rherber1@bigpond.net.au> wrote:
>
>>On Wed, 08 Aug 2007 00:57:00 -0700, YN <noel4881@yahoo.com> wrote:
>>
>>>I want to use a submersible pump that I bought in Canada 230 volts
60
>>>hz with 2 wires (one red and one black) plus a green ground, in the
>>>Philippines where the 220 volts is delivered with only one wire
>>>(black). It should work, same voltage but how to connect?
>>
>>
>>Now I ask, how can the Philipines 220V ac be supplied by a single
>>wire? Nowhere on earth would a single phase with earth return
circuit
>>be allowed for ac mains supply voltages. There must be a LINE wire
>>(active phase) and a separate NEUTRAL return wire.
>
>You kids have it so EASY. Why, when we were young, our AC power came
>on just one wire!

Yeah, don't we

I'm not what you would call a "kid" though - been around a while.

Of course, power companies do construct rural power distribution
systems using single wire earth return (SWER) to save on conductors.
Consumers are isolated from that system by a distribution transformer
which converts it to a 2 wire isolated supply.

On Fri, 10 Aug 2007 03:23:03 GMT, Ross Herbert
<rherber1@bigpond.net.au> wrote:

>On Thu, 09 Aug 2007 20:18:13 -0500, Al in Dallas
><alfargnoli@yahoo.com> wrote:
>
>>On Wed, 08 Aug 2007 11:13:09 GMT, Ross Herbert
>><rherber1@bigpond.net.au> wrote:
>>
>>>On Wed, 08 Aug 2007 00:57:00 -0700, YN <noel4881@yahoo.com> wrote:
>>>
>>>>I want to use a submersible pump that I bought in Canada 230 volts
>60
>>>>hz with 2 wires (one red and one black) plus a green ground, in the
>>>>Philippines where the 220 volts is delivered with only one wire
>>>>(black). It should work, same voltage but how to connect?
>>>
>>>
>>>Now I ask, how can the Philipines 220V ac be supplied by a single
>>>wire? Nowhere on earth would a single phase with earth return
>circuit
>>>be allowed for ac mains supply voltages. There must be a LINE wire
>>>(active phase) and a separate NEUTRAL return wire.
>>
>>You kids have it so EASY. Why, when we were young, our AC power came
>>on just one wire!
>
>Yeah, don't we
>
>I'm not what you would call a "kid" though - been around a while.
>
>Of course, power companies do construct rural power distribution
>systems using single wire earth return (SWER) to save on conductors.
>Consumers are isolated from that system by a distribution transformer
>which converts it to a 2 wire isolated supply.

Any idea how the feeders are set up at the substation? I would guess
the substations would only receive one phase, but do they stick the
neutral to ground?

--
Al in St. Lou

Sorry, I'm not a specialist. The electric company in the Philippines
provides with 2 wires, one black and one neutral. My pump from Canada
comes with 3 wires, one black, one red, and one green. The pump is 230
v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
phase. I think I should connect the green from the pump with the white
neutral. But what should i do with the black and red from the pump?
Connect only the black from the pump to the black line wire and no
connection to the red. Or connect the red and the black from the pump
to the single black line wire? Please help, I don't want to damage
this expensive pump. Thanks

On Sat, 11 Aug 2007 23:13:22 -0700, YN <noel4881@yahoo.com> wrote:

>Sorry, I'm not a specialist. The electric company in the Philippines
>provides with 2 wires, one black and one neutral. My pump from Canada
>comes with 3 wires, one black, one red, and one green. The pump is 230
>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>phase. I think I should connect the green from the pump with the white
>neutral. But what should i do with the black and red from the pump?
>Connect only the black from the pump to the black line wire and no
>connection to the red. Or connect the red and the black from the pump
>to the single black line wire? Please help, I don't want to damage
>this expensive pump. Thanks

In North America, green is used for ground AKA earth. When the two
non-ground wires are red and black, I believe black is neutral and red
is "hot." All this would mean that green should be connected to a good
ground, your pump's red wire to the electric company's black, and your
pump's black wire to the electric company's white. However, I think
you should look for more confirmation and not just go with my say-so,
especially as it's an expensive pump.

--
Al in St. Lou

On Sun, 12 Aug 2007 04:00:58 -0500, Al in Dallas wrote:

>>Sorry, I'm not a specialist. The electric company in the Philippines
>>provides with 2 wires, one black and one neutral. My pump from Canada
>>comes with 3 wires, one black, one red, and one green. The pump is 230
>>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>>phase. I think I should connect the green from the pump with the white
>>neutral. But what should i do with the black and red from the pump?
>>Connect only the black from the pump to the black line wire and no
>>connection to the red. Or connect the red and the black from the pump
>>to the single black line wire? Please help, I don't want to damage
>>this expensive pump. Thanks
>
> In North America, green is used for ground AKA earth. When the two
> non-ground wires are red and black, I believe black is neutral and red
> is "hot." All this would mean that green should be connected to a good
> ground, your pump's red wire to the electric company's black, and your
> pump's black wire to the electric company's white. However, I think
> you should look for more confirmation and not just go with my say-so,
> especially as it's an expensive pump.

So long as the voltage between the two wires is within the pump's
range of operating voltages, you won't damage the pump, but electrical
safety might be a issue.

The earth/ground connection is there to short the power in the event that
any exposed conductor becomes live. Even if the pump has no exposed metal,
the water in which it is submersed could become live if the pump were to
leak.

I strongly suggest asking someone familiar with the local electricity
system about grounding. If in doubt, add an isolating transformer and a
residual current device (RCD, aka ELCB, RCCB, GFCI, ALCI), i.e.:

+-------+
o-- || -------| |----o L (Red)
\ || / | |
/ || \ | |
\ || / | RCD |
/ || \ | |
\ || / | |
/ || \ | |
o-- || ---+---| |----o N (Black)
| +-------+
|
+----------------o E (Green)
|
|
-----
---
-

On Fri, 10 Aug 2007 23:39:07 -0500, Al in Dallas
<alfargnoli@yahoo.com> wrote:

>On Fri, 10 Aug 2007 03:23:03 GMT, Ross Herbert
><rherber1@bigpond.net.au> wrote:
>
>>On Thu, 09 Aug 2007 20:18:13 -0500, Al in Dallas
>><alfargnoli@yahoo.com> wrote:
>>
>>>On Wed, 08 Aug 2007 11:13:09 GMT, Ross Herbert
>>><rherber1@bigpond.net.au> wrote:
>>>
>>>>On Wed, 08 Aug 2007 00:57:00 -0700, YN <noel4881@yahoo.com> wrote:
>>>>
>>>>>I want to use a submersible pump that I bought in Canada 230
volts
>>60
>>>>>hz with 2 wires (one red and one black) plus a green ground, in
the
>>>>>Philippines where the 220 volts is delivered with only one wire
>>>>>(black). It should work, same voltage but how to connect?
>>>>
>>>>
>>>>Now I ask, how can the Philipines 220V ac be supplied by a single
>>>>wire? Nowhere on earth would a single phase with earth return
>>circuit
>>>>be allowed for ac mains supply voltages. There must be a LINE wire
>>>>(active phase) and a separate NEUTRAL return wire.
>>>
>>>You kids have it so EASY. Why, when we were young, our AC power
came
>>>on just one wire!
>>
>>Yeah, don't we
>>
>>I'm not what you would call a "kid" though - been around a while.
>>
>>Of course, power companies do construct rural power distribution
>>systems using single wire earth return (SWER) to save on conductors.
>>Consumers are isolated from that system by a distribution
transformer
>>which converts it to a 2 wire isolated supply.
>
>Any idea how the feeders are set up at the substation? I would guess
>the substations would only receive one phase, but do they stick the
>neutral to ground?

Has to be single phase - that's why it is called SWER, and yes, N is
earthed at substation.

On Sun, 12 Aug 2007 17:06:18 +0100, Nobody <nobody@nowhere.com> wrote:

>On Sun, 12 Aug 2007 04:00:58 -0500, Al in Dallas wrote:
>
>>>Sorry, I'm not a specialist. The electric company in the
Philippines
>>>provides with 2 wires, one black and one neutral. My pump from
Canada
>>>comes with 3 wires, one black, one red, and one green. The pump is
230
>>>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz,
1
>>>phase. I think I should connect the green from the pump with the
white
>>>neutral. But what should i do with the black and red from the pump?
>>>Connect only the black from the pump to the black line wire and no
>>>connection to the red. Or connect the red and the black from the
pump
>>>to the single black line wire? Please help, I don't want to damage
>>>this expensive pump. Thanks
>>
>> In North America, green is used for ground AKA earth. When the two
>> non-ground wires are red and black, I believe black is neutral and
red
>> is "hot." All this would mean that green should be connected to a
good
>> ground, your pump's red wire to the electric company's black, and
your
>> pump's black wire to the electric company's white. However, I think
>> you should look for more confirmation and not just go with my
say-so,
>> especially as it's an expensive pump.
>
>So long as the voltage between the two wires is within the pump's
>range of operating voltages, you won't damage the pump, but
electrical
>safety might be a issue.
>
>The earth/ground connection is there to short the power in the event
that
>any exposed conductor becomes live. Even if the pump has no exposed
metal,
>the water in which it is submersed could become live if the pump were
to
>leak.
>
>I strongly suggest asking someone familiar with the local electricity
>system about grounding. If in doubt, add an isolating transformer and
a
>residual current device (RCD, aka ELCB, RCCB, GFCI, ALCI), i.e.:
>
> +-------+
>o-- || -------| |----o L (Red)
> \ || / | |
> / || \ | |
> \ || / | RCD |
> / || \ | |
> \ || / | |
> / || \ | |
>o-- || ---+---| |----o N (Black)
> | +-------+
> |
> +----------------o E (Green)
> |
> |
> -----
> ---
> -
>

It is not usual to feed a submersible pump via an RCD. The pump should
be fed using a circuit breaker with adjustable current and thermal
overload tripping.

Here is a typical instruction manual for submersible pumps (both 3 ph
and 1 ph) as used in Australia on 240V MEN system.
http://www.southcross.com.au/__data/pag ... _Sheet.pdf

Note that the first wiring diagrams should be headed Three Phase and
not Single Phase (publisher oversight). The pdf contains tables for
current for various size motors so that you can select and set a
suitable circuit breaker.

On Mon, 13 Aug 2007 02:39:09 GMT, Ross Herbert
<rherber1@bigpond.net.au> wrote:

>
>Note that the first wiring diagrams should be headed Three Phase and
>not Single Phase (publisher oversight). The pdf contains tables for
>current for various size motors so that you can select and set a
>suitable circuit breaker.


Boo-boo........

P.4 shows 3 wire single phase pumps. The additional wires are to
connect the start capacitor in the motor control unit.

In article <dnitb3pd1f9ic3mdqap8m3tvsfi5nrj60t@4ax.com>, Al in Dallas <alfargnoli@yahoo.com> wrote:
>On Sat, 11 Aug 2007 23:13:22 -0700, YN <noel4881@yahoo.com> wrote:
>
>>Sorry, I'm not a specialist. The electric company in the Philippines
>>provides with 2 wires, one black and one neutral. My pump from Canada
>>comes with 3 wires, one black, one red, and one green. The pump is 230
>>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>>phase. I think I should connect the green from the pump with the white
>>neutral. But what should i do with the black and red from the pump?
>>Connect only the black from the pump to the black line wire and no
>>connection to the red. Or connect the red and the black from the pump
>>to the single black line wire? Please help, I don't want to damage
>>this expensive pump. Thanks
>
>In North America, green is used for ground AKA earth. When the two
>non-ground wires are red and black, I believe black is neutral and red
>is "hot."

You believe. Perhaps you shouldn't answer questions relating to 240V
electricity until you *know*. Especially when what you believe is totally
incorrect, and dangerously so.

In North American power wiring, black is *never* neutral. It is *always* hot.
Neutral is *always* either white or gray. When black and red wires are
present, typically they are *both* hot with a 240V potential between them.

>All this would mean that green should be connected to a good
>ground, your pump's red wire to the electric company's black, and your
>pump's black wire to the electric company's white. However, I think
>you should look for more confirmation and not just go with my say-so,
>especially as it's an expensive pump.

Especially as you don't know what you're talking about.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

In article <1186899202.332335.324530@x40g2000prg.googlegroups.com>, YN <noel4881@yahoo.com> wrote:
>Sorry, I'm not a specialist. The electric company in the Philippines
>provides with 2 wires, one black and one neutral. My pump from Canada
>comes with 3 wires, one black, one red, and one green. The pump is 230
>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>phase. I think I should connect the green from the pump with the white
>neutral.

No. The green wire should be connected to earth ground.

> But what should i do with the black and red from the pump?

Connect one to black and the other to white. Doesn't matter which way.

Your Canadian pump has two hots (black and red), a ground (green), and no
neutral. In North American power distribution - same is true in Canada, U.S.,
and (to the best of my knowledge) Mexico - uses a three-wire system in
which 240V is supplied from a transformer with a center tap which is strapped
to ground. The two hot conductors have a 240V potential between them - the
black and red wired to your pump - and a 120V potential to neutral and to
earth ground.

Power distribution in the Phillipines - from your description; better consult
a local electrician to be sure - is evidently distributed as 240V over two
wires: one neutral which is/should be tied to earth ground, and one hot with a
240V potential to neutral.

As long as the two power supply conductors that you're hooking the pump up to
have a 240V potential between them, the pump should be fine.

>Connect only the black from the pump to the black line wire and no
>connection to the red.

Pump won't run, since there's no completed circuit.

>Or connect the red and the black from the pump
>to the single black line wire?

Pump won't run, since there's no completed circuit.

>Please help, I don't want to damage
>this expensive pump. Thanks

Since the pump was designed to be operated at 240V anyway, that shouldn't be a
concern.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

On Mon, 13 Aug 2007 12:06:46 GMT, spambait@milmac.com (Doug Miller)
wrote:

>In article <dnitb3pd1f9ic3mdqap8m3tvsfi5nrj60t@4ax.com>, Al in Dallas <alfargnoli@yahoo.com> wrote:
>>On Sat, 11 Aug 2007 23:13:22 -0700, YN <noel4881@yahoo.com> wrote:
>>
>>>Sorry, I'm not a specialist. The electric company in the Philippines
>>>provides with 2 wires, one black and one neutral. My pump from Canada
>>>comes with 3 wires, one black, one red, and one green. The pump is 230
>>>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>>>phase. I think I should connect the green from the pump with the white
>>>neutral. But what should i do with the black and red from the pump?
>>>Connect only the black from the pump to the black line wire and no
>>>connection to the red. Or connect the red and the black from the pump
>>>to the single black line wire? Please help, I don't want to damage
>>>this expensive pump. Thanks
>>
>>In North America, green is used for ground AKA earth. When the two
>>non-ground wires are red and black, I believe black is neutral and red
>>is "hot."
>
>You believe. Perhaps you shouldn't answer questions relating to 240V
>electricity until you *know*. Especially when what you believe is totally
>incorrect, and dangerously so.
>
>In North American power wiring, black is *never* neutral. It is *always* hot.
>Neutral is *always* either white or gray. When black and red wires are
>present, typically they are *both* hot with a 240V potential between them.

If the red and black (wires on the pump) are supposed to have 230VAC
across them, then my instructions were correct. What makes you think
the Philippines is supplying split-phase power? More importantly, why
do you think it makes a difference?

[snip]

--
Al in St. Lou

On Mon, 13 Aug 2007 12:15:40 GMT, spambait@milmac.com (Doug Miller)
wrote:

>In article <1186899202.332335.324530@x40g2000prg.googlegroups.com>, YN <noel4881@yahoo.com> wrote:
>>Sorry, I'm not a specialist. The electric company in the Philippines
>>provides with 2 wires, one black and one neutral. My pump from Canada
>>comes with 3 wires, one black, one red, and one green. The pump is 230
>>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>>phase. I think I should connect the green from the pump with the white
>>neutral.
>
>No. The green wire should be connected to earth ground.
>
>> But what should i do with the black and red from the pump?
>
>Connect one to black and the other to white. Doesn't matter which way.

Boy, that advice sounds familiar!

[snip]

--
Al in St. Lou

In article <u322c3dbpfribl8og6gntacmr9sia7ttva@4ax.com>, Al in Dallas <alfargnoli@yahoo.com> wrote:
>On Mon, 13 Aug 2007 12:06:46 GMT, spambait@milmac.com (Doug Miller)
>wrote:
>
>>In article <dnitb3pd1f9ic3mdqap8m3tvsfi5nrj60t@4ax.com>, Al in Dallas
> <alfargnoli@yahoo.com> wrote:
>>>On Sat, 11 Aug 2007 23:13:22 -0700, YN <noel4881@yahoo.com> wrote:
>>>
>>>>Sorry, I'm not a specialist. The electric company in the Philippines
>>>>provides with 2 wires, one black and one neutral. My pump from Canada
>>>>comes with 3 wires, one black, one red, and one green. The pump is 230
>>>>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>>>>phase. I think I should connect the green from the pump with the white
>>>>neutral. But what should i do with the black and red from the pump?
>>>>Connect only the black from the pump to the black line wire and no
>>>>connection to the red. Or connect the red and the black from the pump
>>>>to the single black line wire? Please help, I don't want to damage
>>>>this expensive pump. Thanks
>>>
>>>In North America, green is used for ground AKA earth. When the two
>>>non-ground wires are red and black, I believe black is neutral and red
>>>is "hot."
>>
>>You believe. Perhaps you shouldn't answer questions relating to 240V
>>electricity until you *know*. Especially when what you believe is totally
>>incorrect, and dangerously so.
>>
>>In North American power wiring, black is *never* neutral. It is *always* hot.
>>Neutral is *always* either white or gray. When black and red wires are
>>present, typically they are *both* hot with a 240V potential between them.
>
>If the red and black (wires on the pump) are supposed to have 230VAC
>across them, then my instructions were correct. What makes you think
>the Philippines is supplying split-phase power? More importantly, why
>do you think it makes a difference?

Back up and re-read. I was correcting your erroneous and dangerous statement
that black is neutral in North American power wiring. It's not. Ever.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

On Tue, 14 Aug 2007 11:14:07 GMT, spambait@milmac.com (Doug Miller)
wrote:

>In article <u322c3dbpfribl8og6gntacmr9sia7ttva@4ax.com>, Al in Dallas <alfargnoli@yahoo.com> wrote:
>>On Mon, 13 Aug 2007 12:06:46 GMT, spambait@milmac.com (Doug Miller)
>>wrote:
>>
>>>In article <dnitb3pd1f9ic3mdqap8m3tvsfi5nrj60t@4ax.com>, Al in Dallas
>> <alfargnoli@yahoo.com> wrote:
>>>>On Sat, 11 Aug 2007 23:13:22 -0700, YN <noel4881@yahoo.com> wrote:
>>>>
>>>>>Sorry, I'm not a specialist. The electric company in the Philippines
>>>>>provides with 2 wires, one black and one neutral. My pump from Canada
>>>>>comes with 3 wires, one black, one red, and one green. The pump is 230
>>>>>v, 60 hz, 1 ph. On my meter in the Philippines it is 220 v, 60 hz, 1
>>>>>phase. I think I should connect the green from the pump with the white
>>>>>neutral. But what should i do with the black and red from the pump?
>>>>>Connect only the black from the pump to the black line wire and no
>>>>>connection to the red. Or connect the red and the black from the pump
>>>>>to the single black line wire? Please help, I don't want to damage
>>>>>this expensive pump. Thanks
>>>>
>>>>In North America, green is used for ground AKA earth. When the two
>>>>non-ground wires are red and black, I believe black is neutral and red
>>>>is "hot."
>>>
>>>You believe. Perhaps you shouldn't answer questions relating to 240V
>>>electricity until you *know*. Especially when what you believe is totally
>>>incorrect, and dangerously so.
>>>
>>>In North American power wiring, black is *never* neutral. It is *always* hot.
>>>Neutral is *always* either white or gray. When black and red wires are
>>>present, typically they are *both* hot with a 240V potential between them.
>>
>>If the red and black (wires on the pump) are supposed to have 230VAC
>>across them, then my instructions were correct. What makes you think
>>the Philippines is supplying split-phase power? More importantly, why
>>do you think it makes a difference?
>
>Back up and re-read. I was correcting your erroneous and dangerous statement
>that black is neutral in North American power wiring. It's not. Ever.

I was giving advice to a guy in the Philippines, and I'd qualified my
remark about red vs. black. My remark may have been technically wrong,
but your advice to the guy I was advising was IDENTICAL.

Thanks for the info about NA power wiring, though. Any idea whether
gray, pink, or flourescent orange should be phase A, B, or C?

--
Al in St. Lou

In article <kt47c3tqn6cc4gk4u96pel8vrmh07ju736@4ax.com>, Al in Dallas <alfargnoli@yahoo.com> wrote:
>On Tue, 14 Aug 2007 11:14:07 GMT, spambait@milmac.com (Doug Miller)
>wrote:
>>
>>Back up and re-read. I was correcting your erroneous and dangerous statement
>>that black is neutral in North American power wiring. It's not. Ever.
>
>I was giving advice to a guy in the Philippines, and I'd qualified my
>remark about red vs. black. My remark may have been technically wrong,

Not just "technically wrong" but potentially deadly. That's why I said
something.

>but your advice to the guy I was advising was IDENTICAL.
>
>Thanks for the info about NA power wiring, though. Any idea whether
>gray, pink, or flourescent orange should be phase A, B, or C?

In North America, gray is not permitted to be anything but neutral, ever.

With regard to the others, I have no idea. I've never worked with three-phase
power. All I can tell you there is that the Code does not specify color codes
for the different phases. I believe the trade has adopted informal
conventions, but I do not know what they are. Google is probably your friend.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

Thanks everybody for your help. I learned something here. I will
install the pump next week. The black with the black for "power", the
red with the white for "return" and the ground with the ground for
safety. I hope it will work because the pump will be 170 feet down,
and I have no idea how to test it before installing it at the bottom
of the well. Quite sure it will work. Thanks.

In article <1187514270.480023.323570@i38g2000prf.googlegroups.com>, YN <noel4881@yahoo.com> wrote:
>Thanks everybody for your help. I learned something here. I will
>install the pump next week. The black with the black for "power", the
>red with the white for "return" and the ground with the ground for
>safety. I hope it will work because the pump will be 170 feet down,
>and I have no idea how to test it before installing it at the bottom
>of the well. Quite sure it will work. Thanks.

You could test it in a swimming pool, or a lake.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

On Sun, 19 Aug 2007 02:04:30 -0700, YN wrote:

> and I have no idea how to test it before installing it at the bottom
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> of the well. Quite sure it will work. Thanks.
^^^^^^^^^^^

How big is this pump? Wire it to a suicide cord, put it in a tank of
water, and turn it on! If it's one of those tall skinny end-if-the-pipe
ones, then, use one of those tall recycling bins. If it's too tall for
that, find a swimming pool or hot tub you can use.

Cheers!
Rich