Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 379

SECTION 10.4.7.5
AUTOMOBILE UNDERCOATING
A. Operation
1. When approved by the City/Municipal Fire Marshal having jurisdiction,
automobile undercoating spray operations conducted in areas having
adequate natural or mechanical ventilation may be exempted from
the requirements pertaining to spray finishing operations when using
undercoating materials which are not more hazardous than kerosene
(as listed by underwriters’ laboratories in respect to fire hazard rating
30-40), undercoating materials using only solvents having a flash point
in excess of thirty seven and eight-tenths degrees Celsius (37.8°C), or
no flames are within six thousand one hundred millimeters (6100 mm)
while such operations are conducted.
2. Undercoating spray operations not conforming to this provision are
subject to all applicable provisions of this IRR.
SECTION 10.4.7.6
POWDER COATING
A. Construction
1. Electrical equipment and other sources of ignition shall conform to the
requirements of the Philippine Electrical Code.
2. Exhaust ventilation shall be sufficient to maintain the atmosphere
below the lowest explosive limits for the material being applied. All
non-deposited air-suspended powders shall be safely removed via
exhaust ducts to the powder recovery cyclone or receptacle.
Powders shall not be released to the outside atmosphere.
3. The provisions of internationally recognized standards for ovens and
furnaces shall apply.
4. Electrostatic fluidized beds and associated equipment shall be of
approved types. The maximum surface temperature of this equipment
in the coating area shall not exceed sixty-five and six-tenths degrees
Celsius (65.6°C). High voltage circuits shall be designed so as not to
produce a spark of sufficient intensity to ignite any powder-air mixture
nor result in shock hazard upon coming in contact with a grounded
object under normal operating conditions.
5. Transformers, power packs, control apparatus and all other electrical
portions of the equipment, with the exception of the charging
electrodes and their connections to power, shall be located outside of
the power coating area or shall otherwise conform to the requirements
of this IRR.
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