well i had my NICEIC QS assesment last week and this was EXACTLY one of the questions. i started to say C3, but then thought about it, its a no code as there is no immediate danger or potential danger under fault conditions and if working safely the board would be isolated so still no risk, and the EICR is actually for the user not the next electrician to come along, which explains why no ID sleeving on switch wires is also NOT codeable
bloody niceic. they seem to have a different version of BS7671 to everyone else. they make their own rules and each of them interprets them differently.