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A simplified guide to backup power sources.
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PS_RalphW



Joined: 24 Nov 2005
Posts: 5267
Location: Cambridge

PostPosted: Wed Jul 13, 2016 11:37 am    Post subject: Reply with quote

I once spent 2 hours in Jaguar 5.3litre XPS with automatic air con and a broken thermostat on a hot July day. It was putting everything it had into heating the cabin. I hate to think how much sweat soaked into the seat fabric.

Embarassed
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kenneal - lagger
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Joined: 20 Sep 2006
Posts: 9822
Location: Newbury, Berkshire

PostPosted: Wed Jul 13, 2016 2:23 pm    Post subject: Reply with quote

PS_RalphW wrote:
I once spent 2 hours in Jaguar 5.3litre XPS with automatic air con and a broken thermostat on a hot July day. It was putting everything it had into heating the cabin. I hate to think how much sweat soaked into the seat fabric.

Embarassed


Don't you mean seat LEATHER!!
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"When the last tree is cut down, and the last river has been poisoned, and the last fish has been caught, Only then will you find out that you cannot eat money". --The Cree Indians
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woodburner



Joined: 06 Apr 2009
Posts: 3384

PostPosted: Wed Jul 13, 2016 3:57 pm    Post subject: Reply with quote

This was the Jaguar 5.3 XPS Popular (with cloth seats and optional heater. Wink ).
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If you think the economy is more important than the environment, try holding your breath while you count your money.
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adam2
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Joined: 02 Jul 2007
Posts: 6219
Location: North Somerset

PostPosted: Sun Jul 17, 2016 8:29 pm    Post subject: Reply with quote

My advice has been sought in the last few days by no less than three friends or neighbours regarding the viability of standby generators for home or business use.

Case 1, domestic plus a home office. Initial request was for "connecting up" a secondhand 15KW/21KVA diesel generator. On hold at present as is going to be a lot more expensive than they expected.

Case 2, fair size farm, mainly poultry that free range* in vast sheds, plus a certain amount of market gardening under glass. A load study is under way to ascertain what size generator is needed.
In the region of 250KW/ 300KVA as the existing 3 phase 315 amp mains supply is consistently fully loaded.

Case 3, a light industrial factory and workshop, and retail shop. Looks hugely complex as they at present have no less than 5 electricity supplies to different parts of the premises, some single phase and others 3 phase. And they own certain parts of the premises but rent other parts which complicates things further.

I suspect that only the second one will actually be done. But the sudden interest in generators is interesting is it not ?

*poultry welfare notes, the birds are described as free range and have ample access during daylight to the open air. They seem to prefer the controlled environment of the sheds though. Only in mild, cloudy and dry weather do many of the birds risk the great outdoors.
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cubes



Joined: 10 Jun 2008
Posts: 565
Location: Norfolk

PostPosted: Sun Jul 17, 2016 10:01 pm    Post subject: Reply with quote

Yup. However, 90% will be put off by the cost of doing it properly, 3% will do it properly and 7% will bodge it and cross their fingers.
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vtsnowedin



Joined: 07 Jan 2011
Posts: 4281
Location: New England ,Chelsea Vermont

PostPosted: Mon Jul 18, 2016 1:55 am    Post subject: Reply with quote

adam2 wrote:

*poultry welfare notes, the birds are described as free range and have ample access during daylight to the open air. They seem to prefer the controlled environment of the sheds though. Only in mild, cloudy and dry weather do many of the birds risk the great outdoors.

Regardless of the facts the birds inherited instincts tell them that the great out doors has foxes and eagles in it and they tend to stay in a group and close to an over hanging shelter.
The fact that they get to make the choice is the free range of it. Smile
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kenneal - lagger
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Joined: 20 Sep 2006
Posts: 9822
Location: Newbury, Berkshire

PostPosted: Tue Jul 19, 2016 11:51 am    Post subject: Reply with quote

It's complicated by the size of the sheds as the birds that live in the middle of the shed tend not to go out because they have to move through the territories of other birds to get there and that means hassle. they have all the food and water that they need to tend to stay put.

The best systems have long narrow sheds and plenty of shade outside so that these normally forest dwelling birds can get out easily and have the shelter that VT mentioned when they get out.
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