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Andrew Johnston18/06/2016 16:33:25
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7061 forum posts
719 photos
Posted by Circlip on 18/06/2016 13:20:58:

All that glisters is not Golddisgust

Iron pyrite?

Andrew

SillyOldDuffer18/06/2016 19:53:27
10668 forum posts
2415 photos

Posted by Muzzer on 18/06/2016 14:59:23:

...

I'll get off my hobby horse in a moment but here's an example of the preposterous advertising they get away with in the US (and Canada). A vacuum that is fitted with a 12A plug (running from a 15A MCB) may just about manage 1800W if it takes the full, allowable 15A short term load. As an engineer, it seems to me that this would amount to a shade under 2.5HP according to conventional practice. But these boys have decided there is a measure called "peak HP" that appears to be more than twice that number. 6HP would be 4.5kW or almost 40A draw. Even a slow MCB would prevent that condition persisting long enough for it to be of any use to the user. It's such a fantastic wheeze that other manufacturers have started to use it for food processors, mixers etc as well as vacuums. Only in America (and Canada)....

Murray

The link reveals this peculiar statement: "Peak Horsepower represents a level at or below the maximum horsepower output of an electric motor tested in a laboratory using a dynamometer".

Presumably it means that they got 6HP out of the motor by overloading it with lots of volts and amps.

Without saying how long the motor lasted at an output of 6HP, it's pretty meaningless. If the motor ran for an hour at 6HP I'd be impressed. More likely something melted in short order.

Has anyone here boosted a standard car engine or model engine with nitrous oxide or similar? How much extra oomph did you get and how long did the engine last?

Cheers,

Dave

 

 

Edited By SillyOldDuffer on 18/06/2016 19:54:32

daveb18/06/2016 20:01:06
631 forum posts
14 photos
Posted by Neil Wyatt on 18/06/2016 15:19:46:
Posted by Andrew Johnston on 18/06/2016 11:57:53:
Posted by Peter Krogh on 17/06/2016 23:22:02:

Nomenclature between industries is a mess. And when you have many industries/trades/professions represented as we do here......

At least the use of the term condenser has died out in the world of electronics. It saves you wondering why there is a large tank full of copper tubes sitting on the circuit board. crook

Andrew

You mean one of these?

Neil

Any chokes in there?

fizzy18/06/2016 20:26:07
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1860 forum posts
121 photos

Isnt that just a cooling device? It mustnt be switched on as I cant see any valves either!

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