Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 410

DIVISION 16. INDUSTRIAL OVENS
SECTION 10.4.16.1
CONSTRUCTION
A. Location and Construction
1. Ovens, oven heaters and related heat utilization equipment shall be
located where they will present the least possible hazard to life and
property. To prevent and minimize damage from fire or explosion,
they may need to be surrounded by walls or partitions.
2. Ovens shall be located at or above grade, or if in basements at least
fifty percent (50%) of the wall area of the room in which the oven is
located shall be above grade, because basements below grade are
difficult to ventilate and offer severe obstacles to proper explosion
release.
3. Ovens shall be located in areas that are readily accessible with
adequate space above them for automatic sprinklers, the proper use
of hose streams, routine inspection and maintenance, and with
adequate clearances to permit the proper functioning of explosion
vents. Roofs and floors of the ovens shall be sufficiently insulated and
ventilated to keep temperatures of combustible ceilings and floors
below seventy-one degrees Celsius (71°C).
4. Ovens and the building that houses it shall be constructed of non-
combustible materials throughout, except where the maximum oven
operating temperature is not over seventy one degrees Celsius (71°C)
and adequate guards shall be provided to protect personnel.
5. Ovens which may contain flammable air-gas mixtures shall be
equipped with devices or relief vents for freely relieving internal
explosions causative pressure.
6. All duct works shall be constructed of non-combustible materials.
Ducts shall be made tight throughout and shall have no opening other
than those required for the proper operation and maintenance of the
system. Ducts passing through combustible well, floors or roofs shall
have adequate insulation and clearances to prevent surface
temperature from exceeding seventy-one degrees Celsius (71°C).
Exhaust ducts shall not discharge near doors, windows, or other air
intakes in a manner that will permit reentry of vapors into the building.
7. Ovens shall be well separated from valuable stock, important power
equipment, machinery and automatic sprinkler rises, so there will be
minimum interruption to production and protection if there are
accidents to the oven. Combustibles in the vicinity of the oven shall
be adequately separated or properly insulated.
8. Each oven shall have its own venting facilities.
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