OT Electric supply

Here are some:-

Mark Rand (usual disclaimers) RTFM

In message , Jonathan Barnes writes

Absolutely correct - but there is a finite limit on installed generating capacity and at times, that limit is reached. The power generators like to have a bit in hand, it saves them all sorts of bother.

Thanks, these are really good prices. I think I'll order some & give them a try.

Regards

Kevin

In message , Boo writes

No argument about distribution voltage being as high as possible.

Agreed.

What they don't like is to be caught flat-footed with demand outstripping supply and total available installed generating capacity is a very close match indeed to total demand. In order to keep a little 'headroom' they won't sell every watt they can make, only every watt scheduled to be made. They have to keep a 'spinning reserve' in case there's a sudden unexpected event that causes overall consumption to rise. The alternative is to lower supply voltage and ultimately shed load. The total available power in the system is finite and fixed at any given time and the only parameter that can be varied relatively quickly is voltage (without load shedding). So, they do try to sell all the power they can but what they can't do is sell power they haven't actually got available.

On a cold winter's night, what will happen if a couple of 500MW sets have a boiler tube failure? Will some unlucky souls get their power turned off or will the grid as a whole see a slightly reduced voltage? My money's on the second possibility. In an ideal world, the spinning reserve would take up the slack, but I'm not sure just how much of that is left these days.

Ikea only does screw fit bulbs AFAIK

Regards, Tony

They certainly have BC (we're using some), not so sure about SBC though. Certainly worth a look if you're unfortunate enough to be in one of their stores

It's true that a good proportion of the fittings they sell have screw fittings, & screw fitting lamps were pretty rare here until IKEA arrived.

Cheers Tim. Dutton Dry-Dock Traditional & Modern canal craft repairs Vintage diesel engine service

Hi Tim, the best value in IKEA is to go in at 9am & get your breakfast for £1. Unlimited free coffee until the store opens at 9.30. I then go straight to the till & buy a load of AA batteries for my cameras. They are the best value you can get.

-- Dave Croft Warrington England

Thanks for the tip, Dave. Going *straight* to the till requires a fair degree of planning/ingenuity/prior knwledge, though

Cheers Tim Dutton Dry-Dock Traditional & Modern canal craft repairs Vintage diesel engine service

Managing it without something you didn't really want following you home is the big problem

Regards, Tony

OK - will look out for them next time.

Regards, Tony

I blame Ilea for all this. We never had a problem with over voltage or for that matter over anything when we were using Lucas lamps. Just select the correct illumination from the three position switch, off, glimmer and flicker and you are away.

For the EE's on the list perhaps you can answer this one?

Given that light travels at 156,000 miles a second or minute ?[ bloody quick anyway ] how was it possible to run over the main beam on my

Apparently Lucas petitioned Parliament in 1949 to get Ohms Law repealed but had to drop the action as there was too much resistance.

I blame Ikea for all this. We never had a problem with over voltage or for that matter over anything when we were using Lucas lamps. Just select the correct illumination from the three position switch, off, glimmer and flicker and you are away.

For the EE's on the list perhaps you can answer this one?

Given that light travels at 156,000 miles a second or minute ?[ bloody quick anyway ] how was it possible to run over the main beam on my

Apparently Lucas petitioned Parliament in 1949 to get Ohms Law repealed but had to drop the action as there was too much resistance.

-- Regards,

John Stevenson Nottingham, England.

Visit the new Model Engineering adverts page at:-

More to the point, how was it possible to get a 1954 BSA to do 70 MPH?? The photons in the main beam were probably so gobsmacked they slowed down to take a look...

Joke told on Radio 4 yesterday morning:

Atom 1: "I think I've lost an electron!"

Atom 2: "Are you sure?"

Atom 3: "Yes I'm positive!"

Regards, Tony

What has an ageing Wimbledon star got to do with anything?

Regards, Tony

They weren't the ACME of authorities.

I care not one WHIT what they were WORTH.

low energy candle bulbs small bayonet

GB-6514 3W £ 4.99 GB-6519 7W £ 5.99

Gentlemen,

I an curious as to how such a mundane subject can get so long, does your hobbies not bring you enough light into your lives :-))

Mart> This is a little OT, but I'm sure someone here will have some input.

Screwfix do low energy candle bulbs with SBC fitting. See

--=20 astro