Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 364

exhaust ducts, shall be of non-combustible material and readily
removable or accessible on both sides for cleaning. Such plates shall
not be located in the exhaust ducts.
8. Each spray booth having a frontal area larger than one square meter
(1 m 2 ) shall have a metal deflector or curtain not less than eleven and
four tenths centimeter (11.4 cm) deep installed at the upper outer
edges of the booth over the opening.
9. Each spray booth shall be separated from other operations by not less
than ninety one and five tenths centimeters (91.5 cm), or by a greater
distance, or by such partition, wall, or floor/ceiling assembly having a
minimum fire resistance of one (1) hour to reduce the danger of
juxtaposition of hazardous operations as the City/Municipal Fire
Marshal having jurisdiction may require, except for spray enclosures
used for drying at elevated temperature.
10. Spray booths shall be installed that all portions are readily accessible
for cleaning. A clear space of not less than ninety-one and five tenths
centimeters (91.5 cm) on sides shall be kept clear of any storage or
combustible materials.
11. When spraying areas are illuminated through glass panels or other
transparent materials, only fixed lighting units shall be used as a source
of illumination. Panels shall effectively isolate the spraying area from
the area in which the lighting unit is located, and shall be of non-
combustible material of such a nature or so protected that breakage
will be unlikely. Panels shall be arranged so that normal accumulations
of residue on the exposed surface of the panel will not be raised to a
dangerous temperature by radiation or conduction from the source of
illumination.
B. Operation
1. Spraying operations, except electrostatic spraying operations, shall be
designed, installed and maintained that the average air velocity from
the spray impeller over the open face of the booth (or booth cross
section spraying operations) shall not be less than thirty meters (30 m)
per minute.
Dry spray booths equipped with a filter roll that
automatically advances when the air velocity is reduced to that
specified in this paragraph shall be arranged to cause shutdown of
spraying operations if the filter roll fails to advance automatically.
Visible gauges or audible alarm devices shall be installed to indicate
that the required air velocity is maintained.
2. Electrostatic spraying operations may be conducted with an air
velocity over the open face of the booth of not less than eighteen
meters (18 m) per minute or more depending on the volume of the
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