PAT Testers question.

[Rampage]

If you were testing a Class 2 (double insulated) appliance and line and neutral were reversed in the plug, would you swap them round?
If so, why? Just to avoid any possible argument with the customer?

 

[Spazz]

Yes because it is wrong!
You have to confirm that the plug is wired up correctly and if L&N are swapped then it is not wired up correctly - it would have to fail

 

[Silly Sausage]

The appliance could be internally fused (on the Line of course)
Fuse blows, appliance doesn't work, but all the internals are still live.

 

[Engineer54]

There is always a switch on appliances, well 9 times out of 10 anyway, so what would you rather have, the switch controlling the line conductor or controlling the neutral conductor??

One of the reasons why the German unpolarised outlets are protected by DP breakers

 

[ruston]

132.14.1. Protective switches and devices. A single pole fuse, switch or circuit -breaker shall be inserted in the line conductor only. 132.14.2 in a PME system.

 

[Rampage]

Fair enough.
What about appliances that use a shaver style plug that pushes in an adaptor plug? You don't know which way round is which!
Denon DVD players and amplifiers for example.

 

[Silly Sausage]

They usually have moulded plugs, so the question doesn't arise.

 

[ruston]

There is a reg that says all plugs must comply with the BS numbers -and another reg about shavers. Have a look at the 553 group of regs.

 

[Rampage]

They usually have moulded plugs, so the question doesn't arise.

On this style a screw holds the two pin plug in place, the plug can be pushed either way into the 3 pin adaptor.
Sorry this is what I was getting at in the OP but somehow managed not to mention it at all!

 

[Swicade]

Any sparks who had just been woken up after a night out on the town and had got totaly hammered, hadn't had thier morning cuppa to try and wake up and shake off that hangover...still being half asleep and not totaly with the world yet....would still remember the importance of having the right Polarity......