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INTERIOB WIRING.

Alternating or Direct Current, Two-Wire
System.

83. outlets The building shall be wired to

and Lights.

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 carefully taped.

8*. system. ^ll wiring shall be for the parallel two-wire system of distribution.

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: | feeders } per cent" mains

per cent., taps per cent.

All wire used throughout the installa- 86- insulation, tion shall be insulated with .

Each j feeder, [main' and taP sha1l test out with an insulation resistance of at least ohms.

From the switchboard (or centre of dis- »s. subdivi

v sion of

(risers, > ) {&}

tribution) groups of risers, V

(feeders, )

shall be carried to the following points:

;Riser ) ( riser )

Group VNo. 1 to group [-No. 2
Feeder ) ( feeder )

to , etc.

iRiser )
Group VNo. 1 shall feed all lights (lo-
Feeder )

{riser )
group [-No. 2 shall feed, etc.
feeder )'

89. Location From the switchboard (or centre of dis

(Risers \ . . .

iFeeder,! tribution) ^ j HBOT^ | ^ be

'under cleats, )
on insulators, , A

"in moulding, ftoand thence

in conduit, etc.,

upward in (channels, wooden conduits, elevator shaft, air shaft, etc., with location) to their respective cut-out boxes.

90. Mains (If ( riapv ) , .

nMrond- From the feeder cut-out boxes mams

ary distribu- ''

tionboxes). c un^er cleats,

shal! be carried

in conduit, etc., secondary cut-out boxes where all tap

lines shall centre. From j f^fer | No. 1

shall be carried mains terminating at

;fromj feeder [ No. 2, etc.

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.)

From the 1 feeder V cut-out boxes dis(main )

tributing circuits shall be run to the various outlets as specified in the schedule and located on the plans. The

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 specificallymentioned 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 02- Jolntsbe avoided where possible; where abso

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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.

Mds^itch (Note.—A complete description of the cabinets, ggjjjj^fjs 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 fur. nished so specify and describe.)

The terminals of all j f^l^8 [ 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

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