New consumer units between 1350mm to 1450mm above floor level.

Apr 05, 2016 7 Replies

As a boy I unscrewed sockets and light switches because human children are inquisitive. Nowadays I'd be protected by an RCD in the Consumer Unit But not if I open up the consumer unit!



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New changes to Part M in new homes could catch you out. For many years new dwellings have had to comply with minimum and maximum heights of light swit ches and power socket outlets. The new edition of the guidelines about acce ssibility now adds the consumer unit into that list of height-controlled fe atures to ensure that more people with physical disabilities will be able t o access the consumer unit to investigate and reset the circuit breakers.



The new requirement is that consumer units must be positioned so that the s witches are mounted between 1350mm to 1450mm above floor level. Many people have said how stringent this requirement is - there is not much room for m anoeuvre!



The consumer unit has often been positioned at a high level, in kitchen cup boards or above doors and coat pegs. The new requirement effectively outlaw s all these positions. It will be a design challenge to find a suitable pos ition for the unit.


As the article says and as per the rest of Part M, it will only apply to new builds and not modifications, rewiring or even change of use.

So at least most people here have nothing to worry about.

The new builds, the logical place to put it will be back to back with the meter cupboard on the outside wall.

Regarding you opening things up - BS7671 considers anything full of live parts that needs a tool to open, to be perfectly safe.

In my childhood, my great aunt's house still had light switches that you could unscrew the dome around the toggle by hand!

From a tiny bit of research that appears to be at the top end of what many wheelchair users can reasonably achieve - but that certainly depends on on whether it is straight ahead, or to the side. Of course, it also depends on the area itself being accessible!

Of course, that lowness also potentially makes them more accessible to the prying hands of children.

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New changes to Part M in new homes could catch you out.

So the new Part M catches up with the 2013 version of part P!

Well, that passed me by - anything I need to know WRT to a secondary CU? (The first was installed prior to all this).

So having just had my consumer unit replaced with an updated one and in a new location I might or might not be legal.

It's not a new build and so the heights do not apply.

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