Maximum demand on EICR

It's been on EICs for ages ... presumably to demonstrate that the supply is suitable for the installation - I suppose it makes sense to re-validate that assumption on an EICR as extra loads may have been added over time?

   - Andy.

AJJewsbury said:

I suppose it makes sense to re-validate that assumption on an EICR as extra loads may have been added over time?

Surely determining MD for the installation is the purvey of the Designer?

During an EICR, especially for non-domestic or a complex installation, how can the MD actually be 're-validated' ?

AJJewsbury said:

as extra loads may have been added over time?

It's necessary for the designer to do this as part of additions and alterations.

In reality, does anyone do anything other than write down the rating of the supply fuse?

In reality, does anyone do anything other than write down the rating of the supply fuse?

I doubt it, but how do you know its rating without having a look?

Even if there is a 100 A fuse, the agreed after diversity maximum demand may well be lower than 23 kVA.