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Electricians & Electrical Forum - wiring stadium floodlights through relays
wiring stadium floodlights through relaysDiscuss wiring stadium floodlights through relays in the Electrical Forum: General Electrical Forum at Tilers Forum; hello all, need help. i have been asked to give a quote on a job involving installing floodlights in a local stadium. i have looked at the original wiring and ...
- 18-03-2011 #1
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- Nov 2010
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wiring stadium floodlights through relays
hello all, need help.
i have been asked to give a quote on a job involving installing floodlights in a local stadium. i have looked at the original wiring and it seems a bit of a mess. it seems the original contractor has installed relays between the supply and the switches for the floodlights independantly (6 in total). the supplys have been taken out of the relays and the board. but an unapproved electrician has had a go lately and has independantly fed the floods from the board to an isolator then swa to the fittings easy 100m away each. this has took up half of the d.b and doesnt comply with the regs as the lights should have a switch (isolators are not made to operate under load).
anyway they want it all ripping out and installed the way it used to be, this means installing relays to operate the floods through attractive 5a switches. to be honest i dont know how to wire up the switches to operate the relays from the db. could anyone give me any ideas as to how to wire these things up efficiently? do the switches need an independant supply via a 6a breaker and the lights fed from a seperate high amp breaker?
any diagrams or advice on your own personal approach to the job would be helpfull, thank you
- 18-03-2011 #2
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- Aug 2010
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Re: wiring stadium floodlights through relays
Hope this helps. It was for a 3 phase system. But I’m sure you can modify it.
When you say he’s fitted an isolator, where? At the supply point or on the lights? Wherever I’ve worked each tower had a lockable isolator at the base for maintenance although the contactor could be 100’s of yards away. One large contactor fed a sub board feeding various towers around the site.
I’ve had some pretty hairy times climbing them. One collapsed 3 months after I’d been up it.
BTW the drawing isn’t for this system
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