Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 416

3. Portable generators shall be located at a safe distance from the
welding position so that they will not be exposed to sparks, slag, or
misdirection of the torch flame or overheating from hot materials or
processes.
4. Portable generators shall be cleaned and recharged and the air
mixture blown off outside buildings.
J. Oxygen-fuel gas welding, cutting and hotworks
1. Mixture of fuel gases and air or oxygen shall be guarded. No device
or attachment facilitating or permitting mixtures of air or oxygen with
flammable gases shall be allowed unless approved for the purpose.
2. Oxygen cylinders shall not be stored near highly combustible materials,
especially oil and grease; or near reserve stocks of carbide and
acetylene or other fuel-gas cylinders, or near any other substance
likely to cause or accelerate fire; or in an acetylene generator
compartment.
K. Piping of oxygen fuel gases
1. Except as provided in this Division, piping shall be of wrought iron,
steel, brass or copper pipe, or approved seamless copper, brass or
other approved gas tubing. Heavy duty piping and fittings may be
used for conveying gas or liquid with pressures up to ten and fifty
fourth-hundredths kilograms (10.54 kg) per square centimeters.
2. For pressures in excess of ten and fifty four-hundredths kilograms (10.54
kg) per square centimeter, extra heavy-duty pipe and fittings shall be
used.
3. Joints in steel or wrought iron pipe shall be welded or made up with
threaded or flanged fittings; or rolled, forged or cast steel, or
malleable iron fittings may be used.
4. Joints in brass or copper pipe may be welded or made up with
threaded or flanged fittings. Joints in approved seamless copper,
brass or other approved non-ferrous gas tubing shall be made by
means of approved fittings or, if of the socket type, with silver solder, or
similar high melting point material.
5. Cast-iron fittings shall be prohibited.
6. Threaded connections in oxygen piping shall be tinned or made up
with other suitable joint sealer applied to the thread of male coupling.
7. Acetylene piping shall be made of steel or wrought iron pipe only.
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