Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 312

Philippine Electrical Code. Suitable means shall be taken to
protect the system against corrosion, including corrosion caused by
stray electric currents.
b. Containers and systems containing cryogenic fluids shall be
equipped with lightning protection when installed outside the
building/ structure.
4. Valves and Accessory Equipment
a. All valves and equipment shall be suitable for the intended use at
the temperature of the application and shall be designed for not
less than the maximum pressure and the minimum temperature to
which they may be subjected, maintaining a safety factor and four
(4) to one (1).
b. Shutoff valves shall be provided on all container connections.
Shutoff valves shall be located as close as practicable to the
container.
c. All liquids and vapor connections on flammable cryogenic fluid
containers, except relief and gauging connections over twelve
millimeters (12 mm) pipe size, shall be equipped with check valves,
or remotely controlled automatic quick-closing valves, and shall
remain closed except during operating periods.
d. Shutoff valves shall be installed in the piping system as needed to
limit the volume of liquids discharged in the event of piping or
equipment failure. Relief valves shall be installed between shutoff
valves in all pipelines.
e. All inlet and outlet connections, except relief valves, liquid level
gauging devices, and pressure gages on any container, shall be
labeled to designate whether they are connected to vapor or
liquid space.
C. Warning Labels
1. Warning labels and signs shall be posted visibly from any direction of
approach on cryogenic containers and equipment. In addition, they
shall be properly marked with the name of the specific cryogenic fluid,
manufacturer/ supplier and contact details.
2. The name of the specific cryogenic fluid shall be conspicuously affixed
at the entrances to locations where they are stored, handled, used, or
dispensed, and at such other locations as may be designated by the
City/Municipal Fire Marshal having jurisdiction.
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