Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 414

C. Hotworks shall not be attempted on a partition, wall, ceiling that has a
combustible covering or insulation, or on walls or partitions of
combustibles sandwich-type panel construction.
D. Hotworks that is performed on pipes or other metal that is in contact with
combustible walls, partitions, ceilings, roofs, or other combustibles shall not
be undertaken if the work is close enough to cause ignition by
conduction.
E. All hotworks operations in confined spaces shall be adequately ventilated
to prevent the accumulation of toxic materials or possible oxygen
deficiency.
SECTION 10.4.17.3
OPERATION
A. The designated working area shall be inspected at least once a day while
the hotworks permit is in effect to ensure that it is a fire-free area.
B. No device or attachment facilitating or permitting mixture of air or oxygen
with combustible gases shall be allowed unless approved for the purpose.
C. The user shall not transfer gases from one cylinder to another, or mix gases
in a cylinder.
D. When moving compressed gas cylinder by crane, suitable cradles shall be
used in order to reduce the possibility of dropping. Ordinary rope slings or
electro-magnets shall not be used.
E. Welding equipment shall be inspected daily. Inspection and testing of
equipment and components shall include regulators, torches, hoses and
connections, piping, oxygen cylinders and manifolds, acetylene cylinders
and manifolds, electrical wires for portable welding machines, fuses and
the portable welding machine.
F. Acetylene generators shall be of approved type and shall be plainly
marked with the rate in cubic meter of acetylene per hour for which they
are designed, the amount of weight of carbide necessary for a single
charge, the manufacturer’s name and address, and the name or number
of the type of generator.
G. Stationary generators shall be installed either in a well-ventilated one-
storey non-combustible outside generator house, or in a well-ventilated
room or compartment of ample size and of construction as outlined in
the succeeding paragraphs, either in a one- storey building or on the top
floor or roof of multi-storeys building. The storage of fuel gas cylinder in
such rooms or compartments shall not exceed a total volume of fifty-
seven cubic meters (57 m 3 ) or twelve (12) kilograms in case of liquefied
petroleum gas.
398