my friendly electrician did that for me and it's only the grey which is bad. I didn't want to make him feel uncomfortable with these sorts of questions so thought i'd rely on the anonymity of a forum instead...
i could run a new cable - but it would mean cutting a section of the ceiing out and then running again in the same holes (the cable runs perpendicular to the joists). probably my only option if we want a fan to run without being a stupid risk.
my friendly electrician did that for me and it's only the grey which is bad. I didn't want to make him feel uncomfortable with these sorts of questions so thought i'd rely on the anonymity of a forum instead...
i could run a new cable - but it would mean cutting a section of the ceiing out and then running again in the same holes (the cable runs perpendicular to the joists). probably my only option if we want a fan to run without being a stupid risk.