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1952 Theatre Catalog, 10th Edition, Page 31 (xxxi)

1952 Theatre Catalog, 10th Edition
1952 Theatre Catalog
1952 Theatre Catalog, 10th Edition, Page 31
Page 31


1952 Theatre Catalog, 10th Edition, Page 31

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HG. .24-5 diagrammatic IaYOul oi the electrical panels and leader lines necessary to serve a theatre oi about 1200 to ISO!) seals. While existing lines may indicate variances for reasons 0! economy, this is the most efficient basic approach. Sketch assumes a 44mm. 3 phase, 120/208 volt. GU-cycle service.

her of the building, noise audible in the theatre may result, and this can be overcome only by properly insulating the members, or, in extreme cases, by removing the support or connection.

Fresh Air Intake

- Proper placing of the fresh air intake is occasionally difficult and expensive, and many intakes are consequently installed improperly in alleys or exit courts, close to the ground, or alongside a flue from an adjoining restaurant. Such installations will continue to be a source of annoyance, and will have to be changed at some time. The proper location for a fresh air intake is one where no large amounts of dirt, smoke from flues on adjoining buildings, or undesirable odors will be drawn into the SYstem, and this location will, of course, depend on the location of the theatre. Exhaust vents should be located Where they will not be a nuisance to the owners of adjoining property. , When air conditioning equipment is installed in cramped spaces, servicing and replacement of parts becomes difficult and expensive. Certain parts of the. apparatus will certainly wear out {luring the life of the equipment, and 1f Worn parts are too inaccessible to be Serviced, they will be neglected, and Serious trouble will develop.

1952 THEATRE CATALOG

WIRING

Estimating Cos-l

When the initial remodeling budget is drawn up, an electrical contractor should be called in to estimate the cost of all electrical work to be done, and an adequate portion of the budget should be set aside for this work.



While economy in many remodeling details may be desirable, when it comes to electrical wiring, nothing short of the best quality installation will sufj'ice. It is the unwise operator who tries to cut the cost of a wiring job and settles for a second-rate installation which is often a potential fire hazard as long as the thentre stands. Installed under experienced hands, a thoroughly safe wiring installation is a sound investment, regardless of how high the cost. If the wiring system has not been kept up to date through the years, the cost of updating it in compliance with local codes and underwritersl regulations will be high. Quite often, the lheatreman has no choice in the matter of modernizing his wiring system, for an authorized inspector may insist that the necessary changes be made as a condition of further operation.



While economy in the actual cost of installation should not be a major consideration, it is possible to recover the cost of the new work over a period of years through an efficient new lighting plan which can reduce the total wattage used under the existing system.

Checking the Rates

Even if no change in the wiring system is contemplated, it is recommended that the utility company servicing the theatre be consulted to determine whether the proper metering hookup is in effect, and whether bills for cone sumed electric current are being comu puted at the most economical rate. Each utility company has several different rates, one of which will he the most economical in a particular instance. When additional motors for air conditioning and ventilation are installed, for instance, the rate will definitely change.

The demand charge is a definite, fixed amount set by the utility company on the basis of the connected load or determined by the installation of a demand meter. While ramifications of the demand charge are perhaps too technical for further discussion here, the theatre management should be aware of the charge and have the metering checked by an electrical engineer, and act on his advice.

XXXI
1952 Theatre Catalog, 10th Edition, Page 31