INTERIOR WIRING. Alternating or Direct Current, Two-Wire The building shall be wired to 83. Outlets and Lights. lamp outlets, 84. System. in Pressure. switch outlets, (and meter outlets) for the equivalent of ampere, volt lamps. The wiring shall be (to outlets only) (except for cut-outs and switches: cut-outs and switches shall be furnished and installed complete). At each outlet the loose wire shall be neatly coiled and the ends carefully taped. All wiring shall be for the parallel two-wire system of distribution. 85. Variation The fall of potential between the switchboard (centre of distribution) and the (farthest lamp) shall not exceed at All wire used throughout the installa- 86. Insulation. tion shall be insulated with Each riser, feeder, main, and tap shall $7. Insulation test out with an insulation resistance of Resistance. From the switchboard (or centre of dis- 88. Subdivi sion of Risers Feeders 89. Location cation), riser group No. 2 shall feed, etc. feeder From the switchboard (or centre of dis tribution) the risers under cleats, shall be carried 90. Mains (If taps terminate in secondary distribution boxes). on insulators, in moulding, upward in (channels, wooden conduits, elevator shaft, air shaft, etc., with location) to their respective cut-out boxes. shall be carried secondary cut-out boxes where all tap {resder } No. 1 mains terminating at lines shall centre. From 91. Taps. (Note. In certain cases it is advisable to run the circuits in such a manner that no room shall be dependent on one circuit only; if so desired it should be added under this heading.) tributing circuits shall be run to the various outlets as specified in the schedule and located on the plans. The wires shall be run under cleats, on insulators, in molding, in conduit, etc., in such a manner that the highest possible insulation shall be maintained under all circumstances. Except in case of single outlets for a group of lamps and circuits specifically mentioned no distributing circuit shall carry over amperes. Distributing circuits shall be of one size of wire throughout their entire length. Throughout the installation joints shall 92. Joints. be avoided where possible; where abso 93. Cut-Out and Switch Cabinets. lutely necessary they must be made mechanically strong and secure, carefully soldered, wiped free from any moisture and excess of flux and so taped and compounded that the insulation of the joints. shall be equal to the original insulation; the solder shall be relied on 'only to give. a good electrical connection. (Note.-A complete description of the cabinets should be given covering material, doors, hinges, locks, finish, etc.; also stating what parts, if any, will be furnished by other contractors, specifying what switches are to be placed in the cabinets, and locating and describing cabinets for switches alone if such are to be provided; if name plates are to be furnished so specify and describe.) The terminals of all risers, mains and taps shall be brought together in cabinets at the points designated in this specification and on the plans. (If wiring contractor does not furnish cut-outs and |