G-60
Use of oxygen and flammable gasses, or LPG or CNG for any hot work
COF exception
Torch operations for jewelry
FDNY permit
Storing
... [Show More] using or handling
oxygen and flammable gas
in excess of 400scf (LPG, CNG or scetylene)
oxidizing gass in excess of 504scf
Portable LPG must not be stored when the capacity of the container is greater than?
16.4 oz
Portable CNG containers must not be stored then the capacity is greater than?
8.7 SCF
Single standard portable LPG containers must not exceed?
100LBs in weight
Single CNG containers must not exceed?
381 SCF
LPG
400 SCF is approximately
47 lbs
Types of FDNY permits
Site specific permits
City wide permits
Transportation permits
Site specific permit can be?
Can be permenant or temperary
Permanent permits are valid for how long?
12 months only.
Permits and renewals require inspection and will expire adter twelve months.
Temporary permits may be valid from?
One day to 12 months depending on the construction or operations needed.
City wise permit duration?
30 days
Hazards out end of day
Quantity of hazardous material being stored(maximum)?
5 gals gasoline
250 gals of flammable
300 gals combustible liquid
Transportation permit
FDNY approved inspected displayed on vehicle
Hot work authorization.
Required for any project with hot work operation but not issued by the FDNY
Responsible person
Must be available for inspection by any representative of fire department during and 48 hours after the work is complete.
Fire guard
Cof holder who is trained in and responsible for maintaijjng a fire watch.
Fire watch
Survailance of an area
Detect signs of early fire
Raise alarms
Notify department
Pre hot work check must be conducted by the responsible person before hot work is authorized at least?
Once per day
Pre hot work check daily and must very the following
Equipment working in order
Hot work is clear of combistibles and flammable solids
Combustible and non combustible are protected
Fire watch personel are assigned
Fire extinguisher available
Fire watch
A fire watch must be maintained during any hot work operation.
The person conducting a fire watch shall
Not have other duties
Fire watch
At least one portable fire extinguisher with a
Minimum 2-A:20-B:C rating shall be accessible within 30ft from hot work
Fire watch
Exception roofing operating fire extinguisher
3-A 40-B:C
Fire watch for torch operations conducted at following locations by a F-60 fire guard:
Construction sites
Buildings and structures
Rooftops
Fire watch must continue for
30 minutes after the conclusing of the work.
Time and record keeping requirements
CNG or LPG torch operations inspections
First shall be conducted 30minute after completion
Second inspection 1 hour after completion
The inspection report must be available
48 hours after work is complete for fire department representative to look over.
Oxygen cylinder is made of
Steel and contains 100% oxygen
Oxy propane degrees
1,500 degrees
Acetylene degrees
3000 degrees
Oxy-acetylene degrees
6000 degrees
Brazing and soldering temperatures
Typically 840 degrees
Oxy-fuel torch
Oxygen storage pressures up to
2200 PSI (pounds per square inch)
Oxy-fuel torch
Dangerous fuel gas pressures
Above 15 psi especially for acetylene
Gas torches also have applications and additions like
For burning weeds
Melting ice
Applying tar/asphalt
Backfire
Flame on torch goes out unexpectedly
A loud snap or pop may occur when the flame goes out.
Flashback
Cutting or welding flame burns inside the torch or the hoses. It is usually accompanied by a whistling or hissing noise.
Frayed clothing
Susceptible to ignition and burning, should not be worn.
Compression gas container
Dangerous temperatures
High temperatures 125 degrees
Regulator
Most important part of compressed gas systems.
Fire guard
A person holding a certificate of Fitness for such purposes, who is trained in and responsible for maintaining a fire watch and performing such fire safety duties as may be prescribed by the commissioner
Fire Watch
A temporary measure intended to ensure continuous and systemic surveillance of a building or portion thereof by one or more qualified individuals for the purposes of identifying and controlling fire hazards, detecting early signs of fire, raising an alarm of fire, and notifying the department
Hot Work
Cutting, welding, thermit welding, brazing, soldering, grinding, thermal spraying, thawing pipe, cadwelding, installation of torch - applied system or any other similar operation or activity
Hot Work Area
The area exposed to sparks, hot slag, radiant heat, or convective heat as a result of hot work
NFPA
National Fire Protection Association. The world's leading advocate of fire prevention and an authoritative source on public safety, NFPA develops, publishes and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks
Personal Supervison
Supervison by the holder of any department certificate who is required to be personally present on the premises, or other proximate location acceptable to the department, while performing the duties for which the certificate is required
Responsible Person
A person trained in the fire safety hazards associated with hot work, and in the necessary and appropriate measures to minimize those hazards, who is designated by the owner of a premises to authorize the performance of hot work at the premises
Torch - applied roof system
Bituminous roofing systems using membranes that are adhered by heating with a torch and melting asphalt back coating instead of mopping hot asphalt for adhesion
oxygen-fuel gas torches have two separate containers:
a pressurized fuel gas container and a pressurized oxygen container.
The oxygen cylinder
made of steel and contains 100% oxygen.
A mixture of oxygen and a fuel gas is used to
generate a flame
oxygen intensifies
the burning of the fuel gas.
Oxy-propane torches can produce about _____ degrees Fahrenheit higher than the air-propane torch can generate
1,500
Acetylene is used because
compared to the other fuel gases it creates the greatest amount of heat when burned (i.e. 3,000 degrees Fahrenheit higher than an air-propane torch)
Both gas containers have control valves on the ___ of the container.
top
The valves control the
discharge of gas from the containers
Gas containers also have a
protective cap or protective collar.
when the cylinders are not in use
The caps should be screwed on over the valve
The oxygen is stored at pressures up to
2200 psi
The fuel gas is stored at higher pressures to keep
sufficient amount of fuel available for torch operations
it is dangerous to use the fuel gas at pressures above __ psi, especially for _________
15, acetylene.
The regulator makes sure that
fuel is discharged from the gas container at a safe pressure range
The two gases, _______ and the ________, are mixed inside the torch
oxygen, fuel gases
Adjusting the valves controls:
the shape and intensity of the flame.
Welding involves
joining two or more pieces of metal together to form a single piece.
cutting processes involve
separating or severing a piece of metal through intense heat generated to melt the metal
Both welding and cutting processes often include
oxygen and fuel gas
Oxy-acetylene generates the ______ temperature which can reach up to _________ ºF.
highest, 6,000
THE COF HOLDER MUST KEEP THE COF ___________ OR READILY AVAILABLE FOR INSPECTION
UPON HIS OR HER PERSON
PORTABLE LPG CONTAINERS THAT ARE MORE THAN ________ MUST NOT BE STORED, HANDLED, OR USED INDOORS.
16.4 OZ
PERMITS SHALL BE READILY AVAILABLE ON THE _________ FOR INSPECTION BY FIRE DEPARTMENT REPRESENTATIVES.
PREMISES
HOT WORK PERMITS SHALL BE AVAILABLE FOR INSPECTION BY ANY REPRESENTATIVE FOR __________ AFTER THE WORK IS COMPLETE.
48 HOURS [Show Less]