I don't know if that exact case can be found, but it's a fairly obvious generalisation of the general principle. that if failure to repair in a timely way a fau

I don't know if that exact case can be found, but it's a fairly obvious generalisation of the general principle. that if failure to repair in a timely way a fault or delapidation can result in reasonably forseeable further damage, insurers will be very reluctant to write policies cover the further damage; because it would result in moral hazard in the purchaser of insurance. So I would personally not like to rely on it being covered (apart from the obvious risk to the person of the house burning down). That's not to say that the original electrical fault wouldn't be insured - that depends on other terms. Your policy does seem to be more lenient than mine in that it allows "resulting loss from " ... "inadequacy or unsoundness in" ... "maintenance". I wonder what the scope of that is in reality.