Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 427

from one or more causes, such as open flames and hot surfaces,
electrical arcs, sparks, or chemical reactions, shall be covered by the
abovementioned manuals and shall comply with the applicable
provisions of this IRR and/or in applicable cases by therein adopted Code
of Practices prescribed by the manufacturer or internationally accepted
standards.
C. To address control and/or reduce the potential for ignition within
plant, the following measures are prescribed:
the
1. All entry sites within a plant, collection system, manholes, pumping
stations and other facilities shall be properly protected from
unauthorized entries. It shall be provided with appropriate security
system and protection, by or in combination of security fencing,
lockable gates/doors, at least two (2) hours fire rated
compartmentation, posting of guards and/or installation of electronic
video camera monitoring system as applicable, and made accessible
only to authorized personnel and/or persons in authority.
2. Introduction of ignition sources at these sites as well as other parts of
the plant shall be limited and regulated by an accepted life and
safety procedural guidelines, supervised by a certified safety
practitioner. As a general rule, introduction of ignition sources in these
sites or areas shall be limited and adequate ventilation shall always be
provided. Provided further, in cases where hotworkss or repair,
rehabilitation, maintenance and other related activities that may
introduce ignition are carried in a water or waste water treatment
plant, an appropriate Fire Safety Clearance shall first be secured from
City/Municipal Fire Marshal having jurisdiction.
3. Application of removal by vacuum or coverage with foam shall be
necessary in event that a foreign combustible material enters the
sewer system.
4. Chemicals and fuels shall always be stored in accordance with
applicable provisions of this IRR and/or manufacturer’s instructions or
international acceptable standards as adopted in the plant. Reactive
chemicals shall always be stored separately with the foregoing
reference to safety standards. In cases of having two or more degrees
of safety, the most stringent degree of requirement shall prevail.
SECTION 10.5.1.5
VENTILATION
A. Ventilation rates for enclosed spaces containing used water or waste
water exposed to the atmosphere shall be based on the calculated
vaporization rate of the most volatile liquid anticipated to be present in
the plant.
B. In considering ventilation requirements, the designer shall base his
calculations upon the surface area of channels, tanks, or other vessels
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