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(Note—This specification will be found o, oo, applicable 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
vertical compound

non-condensing condensing

| 201. Engines.

| engine(s) especially

adapted for electric lighting service.

202. Fittings. | The

}#. € | 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 | oir |parts to develop this power for

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

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

Each | engine shall be provided with

foundation plate, | 8. | full height foundation box, foundation bolts and washers, sight feed cylinder lubricator, throttle valve, sight feed oil cups, full set of wrenches, governor pulley, driving pulley of proper dimensions for driving the dynamo selected (and all necessary pipes, valves, reducing motion and attachments for taking indicator cards.

Indicators to be furnished by the purchaser.)


direct driven by the engine(s) there should be added to the above specification the type or types of dynamo(s) which may be selected from; the method of connecting engine(s) and dynamo (S); and any special fittings such as extension to engine foundation box, extended shaft, out board bearing, spot for supporting fields, attachment for securing brush-holder, etc.)

(Note.—If the dynamos): are | to be

(As required.)

203, Painting.

204. Founda. The foundation(s) for the(se) engine(s)

tions. - contractor shall be built by the | purchaser | of—,

laid —, and shall be of sufficient length, width and depth to safely and firmly sus

- their tain | its

| weight and all strains to it is sary excavating or filling and the removal of all debris shall be done by the }. |The foundations shall be purchaser. of such height that the driving pulley(s)

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which they are | subjected. All neces

(Note.—Foundations for direct-connected outfits should extend under both engine and dynamo.)

(Character of the soil should also be specified, and the method of isolating and insulating the foundation if required.)

(Note.—If this contractor furnishes plant complete, this section can be put before final summary.)

When the o | | * | ready

for operation: they }shall be run for a

period of — days by competent engineers furnished by the contractor.

| #. Engineer, | oil, waste, etc.,
will be furnished by (the purchaser).
This contractor shall also give all neces-
sary instructions to the engineer of (the
purchaser) for the proper care, mainte-

engine(s), |

such instructions to be given during the trial period stipulated above.

nance, and operation of the |

s double leather, endless, solid ) & 4 6 o 66 per- | forated —- link | rubber | | cotton-leather lrope, etc., |

205. Starting Plant and lnstruction.


206 Belts.

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