Suggestions For A Time-Switch

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Stoneman

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Hi,

I look after a stable yard - I was asked recently to fit 'timer switches' to paddock and stable front lighting... apparently they keep being 'left on' when weren't needed.

I fitted 2 pneumatic push timers (with rubber shrouds to make the splash proof - not cheap)... they didn't like'em...

What can you suggest to replace a 1G switch with something that will remain closed for approx 10 mins then open?.. and be IP rated?... without going to daft expense with timed relays etc..

I can't seem to find much.

Cheers...

Cheers

 
Be careful with the time setting.......

If my wife was riding in the paddock and the lights went off after 10 minutes somebody would be very upset at my wife's level of vitriol!

New orifices would be ripped.

Also,consider lights outside stables going out, spilled water on the floor which has frozen. Poor little Jessica Fonleroy-feckwit slips on the ice and injures her cheque writing hand. Daddy is a Barrister and .....well you can guess the rest

Just saying

 
Coin meter has suggested by the owner much to 'the girls' horror... funny though!

The push timers seem really sticky and take a good 'click' to activate - loading is minumul... I've fitted lots in the past with no probs,

Btw, the splashproof shroud is as much as the switch (£12ish...)

 
I thought PIR but the horses and rats would keep setting them off.

Horsey people are such a nuisance.

 
We fitted one of these to cover the fans leaving the ground after a match:

Timeguard DS3HD IP65 Boostmaster Time Delay Switch

Not cheap but worked well. We had it set for the longest delay but it was adjustable via dip switches.

 
First off, Horsey people are a nightmare, but, if you do not like them that much, why keep on taking their money..... you cannot have it both ways....

Secondly, a light that goes off after 10 minutes is a perfectly insane idea.. As Kerching says, one accident and you can kiss the entire place goodbye, ..... and probably STILL be in debt..

Do like Prodave says, and fit the low energy floods... You could have 5 x 100 watt ones and leave them on for a week day and night for less then £15.... If the stables finances cannot cover that, time to re-visit the business plan.....

john...

 
I "think" that there is an issue with certain types of lighting and animals wrt to the acoustic emissions generated?

Down to the switching frequency of the power supplies?

Not audible to humans.

Also the flicker frequency do to the reduced latency in the eyes of animals in comparison to humans.

Again due to the switching frequency.

Any animal experts?...

 
I "think" that there is an issue with certain types of lighting and animals wrt to the acoustic emissions generated?

Down to the switching frequency of the power supplies?

Not audible to humans.

Also the flicker frequency do to the reduced latency in the eyes of animals in comparison to humans.

Again due to the switching frequency.

Any animal experts?...
You do get some high frequency noise off cheapo LED drivers which might upset uhu?

Also on a slightly different note but...... http://www.telegraph.co.uk/news/science/science-news/10693256/Riddle-of-why-animals-fear-pylons-finally-solved.html

:)

 
Anyway,

Back to the horses [and I hate the things by the way]… The trouble with horse yard owners, is they are all complete nutters and want it both ways. If you think horses and their owners are a nuisance, simple answer; DO NOT HAVE THEM THERE…. They all seem to forget that they are paying customers…

Anyway, a horse is a "prey" animal, this is why it has eyes on the sides of its head, the better for spotting something that may want to come up and eat it. Compare this to a cat for example, that has both eyes on the front of its head, the better for "target acquisition"

Anyway, a horse has funny eyes that take a lot longer to re-adjust to the dark after being in the light, so, you suddenly switch off the lights, and the thing is liable to freak out as it presumes that this is part of a plot to bring about its undoing; This is not good…

Now remember what I said about if there is an accident you can kiss your yard goodbye?? Well, best you read this then……

Liability

Engineers have a  criminal liability under the Health and Safety at Work Act 1974. Particularly important are two clauses in the legislation:

Clause 3: General duties of employers and self-employed to persons other than their employees.

[SIZE=12.5pt](1)   [/SIZE][SIZE=12.5pt]It shall be the duty of every employer to conduct his undertaking[/SIZE][SIZE=12.5pt] in such a way as to ensure, so far as is reasonably practicable, that persons not in his employment who may be affected thereby are not thereby exposed to risks to their health or safety. [/SIZE]

Clause 40: Onus of proving limits of what is practicable etc.

[SIZE=12.5pt]In any proceedings for an offence under any of the relevant statutory provisions consisting of a failure to comply with a duty or requirement[/SIZE]

[SIZE=12.5pt]to do something... so far as is reasonably practicable ... it shall be for the accused to prove ... that it was... not reasonably practicable to [/SIZE]

[SIZE=12.5pt]do more than was in fact done to satisfy the duty or requirement.... [/SIZE]

[SIZE=12.5pt]There is also a civil liability in contract where the designer has a design obligation to exercise ‘reasonable skill and care’. Finally, the engineer has a civil liability in negligence – a common law concept of the scope and the duty owed by one party to another.[/SIZE]

Now, as it is "reasonable foreseeable" that there will be dangerous consequences in the event of the lights suddenly going out, you are going to be hung out to dry by the courts if there IS an accident.

Read up on the Ramsgate ferry disaster. The port of Ramsgate commissioned a new walkway. They paid a firm a huge amount of money to design it, another firm a huge amount of money to make it, then they paid Lloyds of London to inspect and certify it, and then it all fell down. Even though the port of Ramsgate had employed specialists in the field of this sort of thing to make it, and then had it tested and certified, they STILL got fined £200,000 How is that fair?????? But this is what happens [The fine for all of them came to £1,700,000]

So, install lights that are designed to go out suddenly, and I hope you got good insurers……[and a better legal team]

[SIZE=12pt]john……[/SIZE]

 
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Yard owners, eh!

Pain in the backside....

Luckily, I suppose, we are very good friends with wife's Yard Owners. Regularly go out on the lash with them, New Years Eve Parties etc BUT....on the Yard it is ALL ONE WAY traffic. All take take take never give give give.

Dozy daughter has just bought a dachsund puppy, yard owners dog got hit by a car and needed mending. Big bills all around...so the Livery Fees went up yet again!

Tight as a Ducks cloacca!

Just warning

 
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