Зображення сторінки
PDF

'n ,, ( riser ) , i .90. Mains (If

From the \ > cut-out boxes mains tape termi

( feeder ) nate In sceoii

1 under cleats, 1 uon imxes).

shall be carried \ on insulators, > to second

(in molding, etc., ) <

ary cut-out boxes where all tap lines shall centre. From j fee(jer I No. 1 shall be carried —— mains terminating at ;from

I feeder [ No. 2' etc.

(Note.—In certain cases it is advisable to 91. Taps, 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.)

(riser )

From the ,j feeder > cut-out boxes distribu( main )

ting 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, ~l

on insulators, \ in molding, } in such a

concealed under plaster, I concealed in walls and ceilings, J

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 absolutely 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.

niiifswHH (Note.—A complete description of the cabiciiuiiiets. nets 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 specif}'' and describe.)

The terminals of all Udders \ 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 switches, add:

the terminals of the j fee(jere r mains and

taps shall be brought into these cabinets in such a way as to permit the easy and convenient insertion and connection of the cutouts and switches specified.)

A cut-out shall be provided for each branch 94. Cut-outs, circuit. All cut-outs shall be double-pole, mounted on incombustible bases, and with connections of such size and shape as to afford ample contact surface for both conductors and fuses.

No fuses shall be put in the cut.outs except 95. Fuses; by special order, but a complete supply, consisting of not less than sets for each cutout, shall be provided. These fuses shall be of the plug type or furnished with metal tips, and shall have their capacity plainly marked upon them.

For the number and capacity of switches 96. switches, see the attached schedule.

All switches shall be double-pole, mounted on incombustible bases, with automatic make and break, the switch being merely set at the point of making and breaking by the operator, and with sliding contacts. The capacity of each switch shall be plainly marked upon

it and shall not be less than per c. p.

lamp controlled.

All switches located on brick or stone walls shall be mounted on wooden blocks of suitable size secured to the wall in such a manner that they shall not become loosened with the continued use of the switch.

97. Fixture Supports.

98. Meter Outlets.

99. Elevator Lights.

Where no fixture support is provided, this

contractor shall .furnish for all j ^fjng [

outlets a suitable support consisting of
f a wooden block firmly fastened to the wall)
flush with the plaster, and of sufficient di-
mensions to securely hold the fixture.
A piece of gas-pipe securely anchored by
means of an iron plate thick and

square set into the j c^fimgj | the

end of the gas pipe to extend beyond

[ the surface of the plaster.
(Specify approximate number required.)

At the places located in the schedule and on the plans, meter outlets shall be run (and a support for each meter provided consisting of securely fastened to the wall).

Each elevator is to be provided with ,

c. p. lamp(s). Each elevator shall be on

its own cut-out and circuit, which shall be run from the distribution box at (location). The wiring shall ipclude the wiring of the elevator car, all necessary cables, and the connection with its outlet. The cables shall be well insulated, flexible, and properly protected from abrasion.

Ioo. Molding. The molding used in the places specified

above shall be of ——, and finished .

On all outside walls, bare brick or stone walls, etc., it shall consist of a backing and capping.

While the schedule is intended to represent iw,Additions

r and Dedue

very closely the number of lights and outlets to »'<»">' be wired to, yet, as some changes may become necessary during the process of construction, each bidder shall name in his proposal a price to be added to or deducted from the contract price for each light or outlet wired for in excess of the number specified, or which shall be cancelled, provided such addition or cancellation involves no change in the work already completed, and shall be along the lines of existing circuits:

(Note.—It may be desirable that the pur- 102,H^TM0' chaser furnish one man to work under the contractor, in order that he may have a man thoroughly familiar with all the details of the construction; the contractor to give such instruction as will enable him to acquire a thorough and intelligent knowledge of methods, appliances, location of circuits, etc.)

(Note.—To be inserted if this contractor is 10j?. HmiirinK

v ot fixtures.

to complete the wiring, including the attachment of lamps and sockets). .

This contractor shall hang all fixtures, including the assembling and wiring of the fixtures (unless provided for under Fixtures), the attaching of sockets, lamps, and shades, and the connection with the ends of the taps.

Insulating joints will be furnished, where required, by the fixture contractor, but this contractor shall furnish and connect a suita

« НазадПродовжити »