Showing posts with label electrics. Show all posts
Showing posts with label electrics. Show all posts

Monday, 22 December 2008

Watts = Volts x Amps

I went round to the house today to take some more pictures; all the plastering in the upstairs bedrooms is finished as you can see from these pictures. The problem is, in this weather, it is taking a long time to dry out especially as there is no heating in the house at the moment.




In effort to speed the natural process up a bit the builder invested in a couple of cheap convection heaters. A first class idea except they were being run off an extension cable rated to a maximum of 10 amps.


The heaters (according to the box) are rated at 2Kw each. If I remember from my school days Watts = Volts x Amps so 4000 watts of heat from a 240 volts supply requires 16.6amps. That will probably account for why the heaters kept switching off!

Just as well we have RCD circuits everywhere.