Daniel: Gardens are a special area, and in the view of the "professional" electricians, you shouldn't even turn on a torch out there.
The irony of the Part P regs is that you can plug in anything you want to a socket, without contravening the regs. As a result we are going to see a large increase in daisy-chained extension leads, overloaded sockets, garden lights plugged into non-rcd protected sockets etc.
Deaths caused by badly installed fixed wiring are very low; many more are caused by extension leads and other unfixed installations. As a result, the imposition of Part P is likely to increase deaths in homes (not to mention D&SI caused by people tripping over cables - does that count as caused by a faulty electricla installation?
Sorry sparkies, this is just a means of creating jobs for the boys and a way of putting prices up.
The following is taken from another forum, so I am not guaranteeing the facts stated, but I am sure the evidence can be found if anyone wants to look:
You're right to be concerned - there is evidence that shows that if you make it too onerous for people to use professionals, or prevent them DIYing, then a transfer of problems from fixed wiring to extension leads is exactly what happens.
A comparison of Australia and New Zealand shows this. These two countries are a reasonable example, as they use the same connectors, same voltages, same earthing methods and have the same basic regulations.
In Australia all fixed wiring has to be done by a registered installer, while in New Zealand most DIY acts are allowed, but newly installed circuits must be inspected by a qualified sparks prior to connection. In 8 out of 10 of the 10 years to 2003, New Zealand has had the lower overall fatality rate from electricity in the home, although accidents from fixed installations are slightly fewer in Australia.
So regulation has worked in one way, Australia's FIXED wiring is indeed safer, but on average between 3 and 4 times more people are dying each year from flexible cables and portable appliances, than in NZ, thus completely outweighing the benefits.
In the UK already between 5 and 10 times more deaths occur from extension leads and flexes than from fixed wiring, and I expect a similar transfer of accidents off one list onto another could occur here.