BS 1363 13 A plug tops

AJJewsbury: 
 

How do you P.A. test appliances if they are connected in parallel? They need testing separately

I don't see a problem - there are plenty of appliances that have one supply lead feeding two boxes (think some fancy clothes irons with a base unit/steam generator and a separate hand-held iron just for one example). Test as you would with a centre-fed radial circuit - i.e. test both and record the worst.

 

   - Andy.

Yes, but your example is for one integrated appliance.

Separate appliances should be tested separately, and the results recorded separately.

Z.

Yes, but your example is for one integrated appliance.

Separate appliances should be tested separately, and the results recorded separately.

 

Z.

 

But by hard-wiring the two together into a single plug, don't they effectively become a single appliance?

   - Andy.

AJJewsbury: 

But by hard-wiring the two together into a single plug, don't they effectively become a single appliance?

   - Andy.

I don't think that's how the the relevant legislation for products would see it, e.g. Electrical Equipment (Safety) Regulations and the Electromagnetic Compatibility Regulations.

So perhaps … if you want to take responsibility for the safety, EMC, etc., of the whole new appliance.

However, I'm struggling to see what the issue is with regard to safety testing all the same … except where the pair of appliances together show a “fail” on any of the tests.

Sure, it can be considered dangerous … for example, two appliances each with 3.4 mA protective conductor current would lead to 6.8 mA protective conductor current, and if some product standards are followed, that's no longer “Pluggable Type A” equipment … but the same thing would occur if I separately plug those appliances into a multi-way extension lead !