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Cat. No. No. Shade- Cat. No. Finish.
Number of Cat. No. of holders. 1 val

Remarks.

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STORAGE BATTERY. This contractor shall furnish and erect, complete in all its details, the following storage battery plant. The cells shall be of the

15 shall be of the type. 193. Type. The capacity of the battery shall be at 194. Capacity. least equal to a steady discharge at the rate of — amperes for - consecutive hours and it shall be capable of withstanding a maximum discharge at the rate of — amperes for — consecutive hours without injury. The total number of cells shall be 196 celinumber

- They shall be arranged in series of — cells each and so connected that they can be discharged at a practically uniform potential of — volts.

(Note. Describe method of erecting.) 196. Erection.

(Note.-Specify and describe connec- 197. Connections for charging and discharging; switches for throwing entire battery or single cells in and out; devices for keeping the potential constant on discharging circuits; connections for testing; and any special devices and apparatuses desired.)

Each bidder shall incorporate in his 198. Guaran.

195. Number of Cells and Voltage.

tions.

tees.

proposal such guarantees as he desires to make as to efficiency, life and cost of

maintenance and repairs. 199. Summary. Each bidder shall fill out completely

the following summary:
Number of cells .

.
Number of series ......-
Dimensions of each cell . . . .
Weight of each cell complete.
Rated capacity in ampere-hours .
Normal voltage each cell. . .
Normal discharging rate ..
Maximum safe discharging rate.
Normal charging rate .....
Maximum safe charging rate . ..

STEAM PLANT.

tion for Steam

Plant.

(Note.--This specification will be found 200. Specificaapplicable to many central station plants up to 200 h. p. or 300 h. p., and for isolated plants where the conditions imposed by municipal and insurance regulations, considerations of the utilization of exhaust steam, or of combining a heating and power plant, and questions of a similar nature do not require special attention.

The forms of Warning, Preamble, and General Specification are, with but slight changes, also adapted to this specification.)

This contractor shall furnish and erect, complete in all its details, the following steam plant:

horizontal single cylinder lo

201. Engines.

| vertical compound | non-condensing ļ engine(s) especially 7 condensing 5 ongue adapted for electric lighting service.

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This 3 These engine(s) shall be capable of developing — indicated horse-power with — pounds initial steam pressure at the throttle, — pounds back pressure, - cut-off and — revolutions per minute, and must be designed in all { their ļ parts to develop this power for 7 its parts indefinite periods.

The variation in speed from no load to full load shall not exceed - per cent.

All material and workmanship shall be of the highest grade; all parts accurately made to standard gauge; all moving parts carefully balanced; all valves and pack. ing free from leakage.

They { shall operate noiselessly and

It without vibration when set on (a) suitable foundation(s) and properly piped.

Each engine shall be provided with 202. Fittings. The se

| foundation plate, a

foundafull height foundation box, )

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