Sorry Teadamon, but I can't conceive that any quality engine manufacturer will not ensure that its product and ancillaries are entirely fit for purpose. Whilst I accept that you or any examiner must work to the specifications given, there are some incredibly stupid rules coming out of The BSS . For example, I feel happier with 12v electrics than I would with 240v 'shorepower' - but that is STILL only subject to 'advisories' - I think we both know why, don't we? And WHY is diesel and petrol treated the same? They certainly aren't the same risk....
They really should understand that at head office (now Milton Keynes I understand) shouldn't they? If they don't, I despair!