A friend of mine used to know an "old crusty" electrician who would use the quick-dab-with-a-finger to distinguish between 240V and 415V.
What's the educational value in showing students where to put lightbulbs? Surely every student who can find his way to the college and back home without a map has already learnt about changing bulbs in the context of general life skills?our lecturer got a shock when he showed the students were you put the lightbulb
About 1966 or 67. Memory fading now…is it time for my walk?…Not to put too fine a point on it, TTC, but what year was this?
That is, of course, the situation with 'switchgear' (including Main Switches, MCBs, RCDs and RCBOs in CUs), even in the UK.Slightly off topic, but it's always seemed more sensible to me that switches should be on in the up position and off in the down, as is the case in some countries I believe.
Indeed.To be honest when I was ordering a couple online I noticed the mk shuttered holders were about a pound more, so I thought "given that choice only an idiot would buy the un shuttered one". However since then when buying locally, and buying more decorative fittings, there's never been a choice.
And is the case in the UK - two way switchingSlightly off topic, but it's always seemed more sensible to me that switches should be on in the up position and off in the down, as is the case in some countries I believe.
That is arguably even more 'dangerous' a situation, since 'off' can be EITHER 'up' OR 'down', depending on the position of other switch(es).And is the case in the UK - two way switching
Well by that logic, I don't "demand" it, unless there's another way to demand them. This kind of safety equipment it's not something demanded by any kind of tranditional market, that's what regulation is for.Indeed.
Despite my surprise (given everything else which has happened) that it has not been 'forced' on us, there clearly is very little demand, as witness the very limited availability to which you refer.
Kind Regards, John
Indeed, that's largely true (although it's not unknown for a significant proportion of 'a market' to favour products which exceed some minimum standard imposed by regulation).Well by that logic, I don't "demand" it, unless there's another way to demand them. This kind of safety equipment it's not something demanded by any kind of tranditional market, that's what regulation is for.
But have they become worthwhile from an efficiency POV in that same period, or are there still vast numbers of them which hardly, or never, get into condensing mode?For example although I remember all the moaning when condensing boilers became mandatory about how they cost 500 quid extra and are unreliable, it didn't take long for them to be as good as the old one and as cheap.
Which side of the answer are you on?But have they become worthwhile from an efficiency POV in that same period, or are there still vast numbers of them which hardly, or never, get into condensing mode?
I very much doubt that any condensing boiler will ever be as 'reliable' as my ancient non-condensing one, which has no electronics and very few components which can go wrong (just a gas valve, burner, thermocouple and water container).For example although I remember all the moaning when condensing boilers became mandatory about how they cost 500 quid extra and are unreliable, it didn't take long for them to be as good as the old one and as cheap.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local