Recent content by Sparkless

To answer Q1 What would the current be if the load were purely resistive? The difference between this and the stated current is due to reactance in the load. Comparing the 2 currents using a vector diagram will give you the power factor.

While we're at it ... a 6-foot post is not 6 foot long it's 6 feet long

Please add Module 7 - How to express yourself in plain English Not using "like", "y'know" & "whatever" Avoiding using "incredible" & "incredibly" to describe things that are readily believable Not starting to answer every question with "So, ..." To be fair, it's not just youngsters who...

Where shall I hang my jacket?

The immersion heater will not draw 3kW for as long as it is on. It will not use energy (whether from solar or grid) once it is up to temperature and the thermostat operates. If it "never" draws power from the grid then when there's no solar excess there's no hot water unless there's another...

Yep

Nonsense. Using more energy-efficient services will result in greater savings as energy prices increase. Simple logic. And the environmental benefits should be considered too.

Mm. Looks like the IET got it wrong then

"Arctic cable" is rated for 110V not 230V see https://electrical.theiet.org/media/1592/the-use-of-arctic-cable.pdf

Yes, the CPC may be extended to another fitting that does need a cpc connection. It is better to use best practice than to say "the regs don't require it"

This could be done but is it required by a regulation? The cable has already been installed.

A business customer has objected to the use of tri-rated cables within cabinets in a technical equipment room as "it doesn't comply with the wiring regs because the cables have only a single layer of insulation" I say that BS7671 applies to the "fixed wiring" of a building and not to equipment...

Looks good, thanks

Thanks, but I need multiple switch connections

The one you spotted looks like it's Al. The others are Cu. What do you advise please? Looks good, thanks