I am looking to have 6 down lights installed in a first floor hall way ceiling. The necessitates drilling 80mm holes where the joists are to facilitate the running of cables. Two different contractors have different ideas as to how the cables should be run through the joists:
(i) would notch out a small grove in the joists and fit the cable in this, so the cable would be sitting on top of the plaster ceiling.
(ii) would drill small holes for the cable to go through the joist, some 25 mm above the height of the ceiling.
Is there a right or wrong way give the above examples?
(i) would notch out a small grove in the joists and fit the cable in this, so the cable would be sitting on top of the plaster ceiling.
(ii) would drill small holes for the cable to go through the joist, some 25 mm above the height of the ceiling.
Is there a right or wrong way give the above examples?