On 29/01/2018 13:05, jim wrote:

Does retrofitting mcbs into an older wylex "fuse wire" consumer
unit need notification?
--
Jim K


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Strictly speaking by replacing the fuses with mcb's you could be deemed
to be making changes to the consumer unit and its protective devices
which would require notification to building control.

It may depend on where the property is e.g Scotland but for England and
Wales a call to your local authority building control department would
conrirm if notification is required.

Alternatively unless you already have the mcb's it may be worth gtting
an estimate for the fitting from a local approved sparkie, it's only a
five minute job.

Bear in mind mcb's often trip when lamps blow so access to the 'fuse
box' may be needed more frequently.