Cleaning and Painting

2.3.2

Both the inside and outside surfaces of an enclosure, including means for

fastening, shall be protected against corrosion by enameling, galvanizing,

plating, powder coating, or other equivalent means. Protection is not

required for metal parts that are inherently resistant to corrosion,

bearings, sliding surfaces of hinges, or other parts where such protection

is impractical. Finish shall be manufacturer's standard material, process,

and color and shall be free from runs, sags, peeling, or other defects. An

enclosure marked Type 1, 3R, 4 or 12 shall be acceptable if there is no

visible rust at the conclusion of a salt spray (fog) test using the test

method in ASTM B 117, employing a 5 percent by weight, salt solution for 24

hours. Type 4X enclosures are acceptable following performance of the

above test with an exposure time of 200 hours.

2.4

TESTING

2.4.1

Factory Testing

A prototype of specified ATS shall be factory tested in accordance with UL

1008. In addition, factory tests shall be performed on each ATS as follows:

a.

Insulation resistance test to ensure integrity and continuity of

entire system.

b.

Main switch contact resistance test.

c.

Visual inspection to verify that each ATS is as specified.

d.

Mechanical test to verify that ATS sections are free of mechanical

hindrances.

e.

Electrical tests to verify complete system electrical operation

and to set up time delays and voltage sensing settings.

2.4.2

Factory Test Reports

Manufacturer shall provide three certified copies of factory test reports.

2.5

FACTORY TESTING (MEDICAL FACILITIES)

**************************************************************************

NOTE: The factory tests sequence listed below is

required for Medical Facilities only.

**************************************************************************

The factory tests for ATS and By-Pass/Isolation switches used in medical

facilities shall be conducted in the following sequence:

a.

General

b.

Normal

c.

Overvoltage

d.

Undervoltage

e.

Overload

f.

Endurance

g.

Temperature Rise

h.

Dielectric Voltage-Withstand

i.

Contact Opening

SECTION 16410A

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