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or equivalent as an extra precaution. All cables shall be of stranded wire.

All joints shall be soldered. All connections to switches, cut-outs, etc., shall be soldered or made with an approved form of lug or set-screw, in all cases care being taken to secure good and sufficient contact to prevent heating and insure permanency; when made with lugs or setscrews they shall be in plain sight and easily accessible for tightening. Connecting wires shall be so run and secured that crosses or grounds are impossible in the normal operation of the plant.


(Note.—No set specification can be made for fixtures and shades; their character must be determined wholly from individual requirements. See schedule, p. 136).

This contractor shall furnish and de- so. Lamps.

liver at the following number, sizes,

and kinds of incandescent lamps:

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stating, also, their make and the make of the socket for which they are adapted. Lamps shall be guaranteed to have an

average life of not less than hours if

burned at their normal voltage. They shall burn with a white light and shall not blacken under proper use. All lamps giving out or proving defective during the trial period of days under normal and proper use shall be replaced without charge.

81. Sockets and Receptacles.

This contractor shall furnish and deliver at the following numbers and

kinds of sockets and receptacles:
Number. Kind. Finish.

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82. Meters. This contractor shall furnish and

j deliver at —
j place in positio

bers and sizes of the

n j-the following numwatt meter,

recording ampere meter, current counter.

Number. Capacity in Two or three amperes. wire.

etc. etc. etc.


Alternating or Direct Current, Two-Wire

and lights

Ontlets 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 carefully taped.

84. system. All wiring shall be for the parallel two-wire system of distribution.

85. variation The fau 0f potential between the

in Pressure. .

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 instaila- 86- insulation, tion shall be insulated with .

87. Insulation Resistance.

Each | Yqqiqt I main, and tap shall

test out with an insulation resistance of at leasts ohms.

From the switchboard (or centre of dis- ss. subaivi

x slon of

(risers, )

tribution) -I groups of risers, V

(feeders, )

shall be carried to the following points:

{Riser ) (riser )

Group VNo. 1 to .-(group VNo. 2
Feeder ) ( feeder )

to , etc.

{Riser )
Group >• No. 1 shall feed all lights (lo-
Feeder )

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