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83. Outlets and Lights.
Alternating or Direct Current, Two-Wire
The building shall be wired to — lamp outlets, – 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 care
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
— load — per cent. of the initial pressure; this difference to be divided as
follows: | Hors |– per cent., mains
— per cent., taps — per cent.
All wire used throughout the installa- 86. Insulation. tion shall be insulated with —.
riser - 87. Insulati Each) fee der, | main, and tap shall ote.”
test out with an insulation resistance of at least — ohms.
feeders, shall be carried to the following points: Riser riser Group - No. 1 to —, 3 group - No. 2 Feeder feeder to —, etc.
riser cation), X group - No. 2 shall feed, etc. feeder
* * From the switchboard (or centre of disRisers
upward in (channels, wooden conduits, elevator shaft, air shaft, etc., with location) to their respective cut-out boxes.
to —, and thence
- riser . . termi- no.a. From the feeder | cut outboxes mains ary distribution boxes. under cleats, - - lators hall I'I’l on insul 3. t shall be carried: i. molding, O in conduit, etc.,
secondary cut-out boxes where all tap
lines shall centre. From | riser |NO. 1.
feeder shall be carried — mains terminating at - riser —, from: feeder |No. 2, etc.
91. Taps. (Note.—In certain cases it is advisable
to run the circuits in such a manner that
- on insulators wires shal - - 5 l be run in molding, 1I].
in conduit, etc., 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 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.)
- risers, The terminals of all | feeders, | Isla IIlS
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