Зображення сторінки

clear glass 72. Globes. full ground —-- half ground -globes. Opal colored, etc. |

— wire-gauze spark arresters, and *...*

• Nets. — wire globe nets. etS

sets of carbons, a set consisting 74. Carbons. of one upper and one lower carbon.

(See p. 51, sec. 25.) Énéo. Struction.

(See p. 51, sec. 26.) 7% oval

(See Note: p. 52, Sec. 27.) 77. Summary.

Each bidder shall fill out completely
the following summary:
Number of dynamos . . . . —
Trade number or designation . . —
Rating in volts . . . . . . —
Rating in amperes . . . . . —
Capacity in — c. p. lamps . . —
Series or shunt wound . , . . —
H. P. required to be delivered at
pulley at full load . . . —

78. Switchboard Complete. ,


This contractor shall furnish and erect the following apparatus and material:

One combination (material) switchboard with a capacity for circuits, and provided with the necessary sockets, plugs, main and transfer cables, testing connections, and a suitable and convenient device for holding cables not in use. It shall be so arranged and marked that any circuit or series of circuits may be quickly connected with or disconnected from any dynamo with the least possible danger of short-circuits or error. Sockets shall be so designed that it is practically impossible to short-circuit, ground or receive a shock from them. All connections with the dynamo leads shall be easily accessible. All wires used in making connections shall have — insulation. All plugs shall have well insulated wooden handles and the cables shall be covered with soft-rubber tubing

or equivalent as an extra precaution. All
cables shall be of stranded wire.
All joints shall be soldered. All con-
nections 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 set-
screws they shall be in plain sight and
easily accessible for tightening. Con-
necting 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 deliver at — the following number, sizes, and kinds of incandescent lamps:

79. Fixtures and Shades.

80. Lamps.

81. Sockets and Receptacles.

82. Meters.

Number. C. p. s Voltage. [Plain. - Amperage | Frosted. - Colored,etc.

etc. etc.


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.

This contractor shall furnish and deliver at — the following numbers and kinds of sockets and receptacles: Number. Kind. Finish.

etc. etc. etc.

This contractor shall furnish and

deliver at —
place in position

bers and sizes of the –

| the following num

Watt meter,
recording ampere meter,
Current COunter.

Number. Capacity in Two or three amperes. wire.

etc. etc. etc.

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