Box 1, Folder 4, Document 12

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Box 1, Folder 4, Document 12

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CITY OF ATLANTA
OFFICE OF INSPECTOR OF BUILDINGS
s00 CITY HALL
TEL. JA. 2-4463 EXT. 321
ATLANTA, GEORGIA

June 10, 1969 \

The Honorable George Cotsakis,
150 Ottley Drive, N. E.
Atlanta, Georgia 30324

Dear Mr. Cotsakis:

We have made an investigation of the power failue which
recently occurred at the Grady Hospital Building and find that
the electrical installation including all of the apparatus and
equipment was properly installed and that there is no indication
of the equipment'’s being overloaded.

The power failure occurred at night and the peak load for
the building is during the middle of the day when air conditioning

equipment requires more power.

The inspection reveals that the main electrical distribution
panel in the building consists of two power circuit breakers and
two lighting circuit breakers. Of these four breakers one
lighting breaker and emergency lighting functioned properly throughout
the entire incident. It is the opinion of the electrical inspector,
after investigation and consultation with Mr. DeVain, Maintenance
Engineer, that the circuit breakers could have been turned off,

The entire electrical syatem is supplied from a transformer
vault lecated underground just outside the building.

During the emergency the standby generator kicked in and
operated successfully for approximately 30 minutes. The inspectors
and the maintenance engineer believe that the cause of the generator's
everheating was attributable te a defective solenoid valve in the
cooling system. This valve has since been replaced and the system
checked out and is new operating properly.

Very truly yours,

tty Ct Af ot ee

W. R. Wofford
GRW: at Building Official

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