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Old 09-17-2013, 08:24 AM   #1
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Daisy Chain Extension Cords to Flood Lights?


Hi Everyone.

I need to place some external flood lights approximately 100meters away from a mains outlet (240V plug socket in my shed).

The flood lights are 4x 500Watt lamps. Will it be ok to daisy chain 2 or 3 extension cords (made from 3 core 1.5mm flex)? It will be a temporary solution used for no longer than an hour at a time and only in fine weather.

I've heard of voltage drop off and over-heating etc but cannot find a definitive answer if will be safe to rigg up what ive suggested above.

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Old 09-17-2013, 09:16 AM   #2
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Daisy Chain Extension Cords to Flood Lights?


you're going to have voltage drop issues, more than 5%. this assumes copper conductors. if they are simple incandescent lamps, they will simply be dimmer than if you didn't have the drop. it isn't 'unsafe' per se but if you can get some bigger cord, go for it.

i wouldn't run motors or similar with that cord at that distance.

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Old 09-17-2013, 11:44 PM   #3
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Daisy Chain Extension Cords to Flood Lights?


Quote:
Originally Posted by MrPickers View Post
Hi Everyone.

I need to place some external flood lights approximately 100meters away from a mains outlet (240V plug socket in my shed).

The flood lights are 4x 500Watt lamps. Will it be ok to daisy chain 2 or 3 extension cords (made from 3 core 1.5mm flex)? It will be a temporary solution used for no longer than an hour at a time and only in fine weather.

I've heard of voltage drop off and over-heating etc but cannot find a definitive answer if will be safe to rigg up what ive suggested above.
I.5mm cable is usually good for 15a.
If your load is 2000w at 240v thats 8.8a,
Should be ok.
There will be a small loss of voltage,
but with incandesant lights they will still work ok.
most people would not even notice the difference.
But the thicker the cable the less loss.
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