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Old 12-22-2010, 09:05 AM   #1
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Outside Arena Lighting


I help out an organization that does theraputic care for the physically disabled by using Horses. They have an outside arena that they use in the summer and now that its winter, time to do some changes.

My question, they have 4 poles with 110v lighting and if i remember all the lights are on there own circuit and they have come across some new lights that were donated but are 220v. Whats the best way to change the output of the wiring for this circuit so we could use them? I am not sure if 220/240v is being supplied but will find out.

Thanks
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Old 12-22-2010, 09:44 AM   #2
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That depends on the wiring and space in the panel.
If each light is on it's own circuit, then ithis may be easy to do.

You need 2 pole breakers in the panel.

We need more info on the current wiring to give the best advice.
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Old 12-22-2010, 09:51 AM   #3
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Thanks,
I plan on going out in about an hour or so and will look at the panel and take some pictures and do up a bit of a diagram on how the lights and wiring are run.
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Old 12-22-2010, 10:44 PM   #4
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It may able change from 120 to 240 volts depending on few condtions on the exsting luminaire circuit.

What type of exsting luminaire wattage it is ?

How far is from the breaker box ?

What the wattage of the " new " luminaire it have on now ?

once the basic question answered then we can able give you a guideline what it need to be done.

Merci.
Marc
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Old 12-23-2010, 07:40 AM   #5
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If you converted the 110 volt circuits to 220 (240) volts, you can run the same number of amperes which means twice the number of watts of lighting compared with before.

Now if the old lighting system suffered noticeable voltage drop because of the distance, you will get the same number of volts of voltage drop if you drew the same number of amperes at 220 volts. (half the percentage voltage drop compared with 110 volts). If this is unacceptable, you would have to use fewer amperes.

With just some fixtures that use 220 volts, you will probably want to use them on the poles farthest from the power supply because of voltage drop behavior.

A combination 110/220 volt circuit requires three current carrying wires, one white, plus a ground wire which can be bare.

Cables with one white and one black wire may be used for 220 volts in which case the white wires should have a band of black or red tape put at both ends.
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Last edited by AllanJ; 12-23-2010 at 07:46 AM.
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