Penny dropping

Consensus politics is a contradiction in terms. To lefties, it just means that you have to agree with them.

almost certainly :-(

En el artículo , The Natural Philosopher escribió:

I noticed that too.

True enough for those without a UPS/generator of some sort but if you cut the gas off you have to go around all the affected properties and make sure everything is turned off. Purge the mains and re-pressurise. Then go around switching everything back on again. You really don't want an unlit pilot light spewing gas into a closed up space...

If the lights saty on that is spin they will put on it. I really hope the lights don't stay on, with wind currently flat out...

This evenings "crisis" seems to have passed without incident, no oil or OCGT that I have spotted. Were their any system warnings, demand reductions, disconnections?

On Saturday 23 March 2013 15:44 mogga wrote in uk.d-i-y:

That's not the point. Well, it is because you'll get cold.

The actualy point was, you cannot cut domestic gas off as the pipes get full of air which is a bit dangerous - so they have ot bleed all the pipes to all the connected properties.

So they cut industrial users off instead, where they can issue clear instructions to shut valves etc and pilot lights are not an issue.

Unfortunately one class of industrial user is the gas fired power stations!

Somebody did on Question time the other week and all the politicians dodged it and answered as to what was the point of politicians and proceed to tell us what a terribly good job they all did.

But then they'll just say we should have had more wind.

That wouldn't happen. That's why we have thermocouples.

Older gas cookers could be a problem.

Or is it just a load of made up crap fed out to you lot? Clearly not worth watching

yes, and I'd have to spend half an hour or more purging the air out my gas supply. Pull the other one.

Why? The gas valve would close on flame failure. As I said old style manually lit gas cookers could cause a problem. All your automatic ignition stuff closes down on flame failure. This is in case anyone shuts off the valve by their gas meter.

Yes.

absolutely right - but who is going to purge the air out of the pipe from the road to my boiler?

Operative words "in theory". As the gas operator you don't *know* that there isn't a faulty appliance out there.

Not convinced, we used to have a gas cooker with pilots for each ring, no flame failure device for those. You could smell gas within an hour of one of them blowing out.

I have a suspicion that large-scale de-pressurising followed by re-pressurising would be likely to reveal a number of hitherto unnoticed leaks...

An extreme government makes a country ripe for a revolution.

Quite possibly and another reason for going round every property and turning the gas off at the meter. When they repressrise the mains they can watch the pressure for a bit and see if it falls...