Ans. A baseboard is next installed as in [fig. 1,003] to have a secure hold for the screws used in fastening the fixtures. Two holes are then bored diagonally with a 11/16 inch bit inserting the bit in the small hole bored in the ceiling as in [fig. 1,001]. The outlet wires are then tied around the knobs and the upper ends being bared and tapped on to the main wire. A piece of loom is slipped on each outlet wire after which it is thrust through the outlet as in [fig. 1,003].
Fig. 1,005.—Plan showing one floor of a dwelling house wired with conduits. The numbers on the various outlets indicate the number of lamps supplied. The wiring is carried out on the loop system, and it will be noticed that no branches are taken off between outlets. Four circuits are used in order that there may not be more than ten lamps on any one circuit.
Ques. How are the mains secured to the knobs?
Ans. By taking a turn around the intermediate knobs and a dead end hitch at the end knobs, or they may be hitched at each knob. The main may be secured also by use of a tie wire.
Ques. What is the difference between a splice and a tap?
Ans. A splice is the joining of two wires at their ends; a tap is the joining of the end of one wire with an intermediate point of another wire.