.". Workplace Safety And Health ,WSH Safety Resources Blog: April 2012

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MOM & SCDF Joint Circular

Joint Circular issued by the Ministry of Manpower (MOM) and the Singapore Civil Defence Force (SCDF) SAFE STORAGE AND HANDLING OF FLAMMABLE ...

Friday, April 6, 2012

Confined Space Entry Safety Checklist


Safety Checklist For Working In Confined Space





SAFETY CHECKLIST FOR WORKING IN A CONFINED SPACE ENVIRONMENT

Safety Questionnaire

WSH ( Confined Space) Regulations

Yes

No

Are all lines to a confined space, containing inert, toxic, flammable, or corrosive
materials valved off and blanked or disconnected and separated before entry?

Are all impellers, agitators, or other moving parts and equipment inside confined
spaces locked-out if they present a hazard?

Is either natural or mechanical ventilation provided prior to confined space entry?

Are appropriate atmospheric tests performed to check for oxygen deficiency, toxic
substances and explosive concentrations in the confined space before entry?

Is adequate illumination provided for the work to be performed in the confined space?

Is the atmosphere inside the confined space frequently tested or continuously
monitored during conduct of work? Is there an assigned safety standby employee
outside of the confined space? When required, whose sole responsibility is to watch
the work in progress, sound an alarm if necessary, and render assistance

Is the standby employee appropriately trained and equipped to handle an
emergency?

Is the standby employee or other employees prohibited from entering the confined
space without lifelines and respiratory equipment if there is any question as to the
cause of an emergency?

Is approved respiratory equipment required if the atmosphere inside the confined
space cannot be made acceptable

Is all portable electrical equipment used inside confined spaces either grounded and
insulated, or equipped with ground fault protection?

Before gas welding or burning is started in a confined space, are hoses checked for
leaks, compressed gas bottles forbidden inside of the confined space, torches lighted
only outside of the confined area and the confined area tested for an explosive
atmosphere each time before a lighted torch is to be taken into the confined space?

If employees will be using oxygen-consuming equipment-such as salamanders,
torches, and furnaces, in a confined space-is sufficient air provided to assure
combustion without reducing the oxygen concentration of the atmosphere below 19.5
percent by volume?

Whenever combustion-type equipment is used in a confined space, are provisions
made to ensure the exhaust gases are vented outside of the enclosure?

Is each confined space checked for decaying vegetation or animal matter which may
produce methane?

Is the confined space checked for possible industrial waste which could contain toxic
properties?

If the confined space is below the ground and near areas where motor vehicles will be
operating, is it possible for vehicle exhaust or carbon monoxide to enter the space?

Is there a team of trained personnel for confined space rescue work?

Are all impellers, agitators, or other moving parts and equipment inside confined
spaces locked-out if they present a hazard?

Is either natural or mechanical ventilation provided prior to confined space entry?

Are appropriate atmospheric tests performed to check for oxygen deficiency, toxic
substances and explosive concentrations in the confined space before entry?

Is adequate illumination provided for the work to be performed in the confined space?

Is the atmosphere inside the confined space frequently tested or continuously
monitored during conduct of work? Is there an assigned safety standby employee
outside of the confined space? When required, whose sole responsibility is to watch
the work in progress, sound an alarm if necessary, and render assistance

Is the standby employee appropriately trained and equipped to handle an
emergency?

Is the standby employee or other employees prohibited from entering the confined
space without lifelines and respiratory equipment if there is any question as to the
cause of an emergency?

Is approved respiratory equipment required if the atmosphere inside the confined
space cannot be made acceptable

Is all portable electrical equipment used inside confined spaces either grounded and
insulated, or equipped with ground fault protection?

Before gas welding or burning is started in a confined space, are hoses checked for
leaks, compressed gas bottles forbidden inside of the confined space, torches lighted
only outside of the confined area and the confined area tested for an explosive
atmosphere each time before a lighted torch is to be taken into the confined space?

If employees will be using oxygen-consuming equipment-such as salamanders,
torches, and furnaces, in a confined space-is sufficient air provided to assure
combustion without reducing the oxygen concentration of the atmosphere below 19.5
percent by volume?

Whenever combustion-type equipment is used in a confined space, are provisions
made to ensure the exhaust gases are vented outside of the enclosure?

Is each confined space checked for decaying vegetation or animal matter which may
produce methane?

Is the confined space checked for possible industrial waste which could contain toxic
properties?

If the confined space is below the ground and near areas where motor vehicles will be
operating, is it possible for vehicle exhaust or carbon monoxide to enter the space?


Electrical Work Safety Checklist


Safety Checklist For Electrical Work


SAFETY CHECKLIST FOR ELECTRICAL

Safety Questionnaire

Yes

No

Do you specify compliance with OSHA for all contract electrical work?

Are all employees required to report as soon as practicable any obvious hazard to
life or property observed in connection with electrical equipment or lines?

Are employees instructed to make preliminary inspections and/or appropriate tests
to determine what conditions exist before starting work on electrical equipment or
lines?

When electrical equipment or lines are to be serviced, maintained or adjusted, are
necessary switches opened, locked-out and tagged whenever possible

Are portable electrical tools and equipment grounded or of the double insulated
type?

Are electrical appliances such as vacuum cleaners, polishers, and vending machines
grounded

Do extension cords being used have a grounding conductor?

Are multiple plug adaptors prohibited?

Are ground-fault circuit interrupters installed on each temporary 15 or 20 ampere,
120 volt AC circuit at locations where construction, demolition, modifications,
alterations or excavations are being performed?

Are all temporary circuits protected by suitable disconnecting switches or plug
connectors at the junction with permanent wiring?

Do you have electrical installations in hazardous dust or vapor areas? If so, do they
meet the National Electrical Code (NEC) for hazardous locations?

Is exposed wiring and cords with frayed or deteriorated insulation repaired or
replaced promptly?

Are flexible cords and cables free of splices or taps?

Are clamps or other securing means provided on flexible cords or cables at plugs,
receptacles, tools, equipment, etc., and is the cord jacket securely held in place?
Are all cord, cable and raceway connections intact and secure?

In wet or damp locations, are electrical tools and equipment appropriate for the use
or location or otherwise protected?

Is the location of electrical power lines and cables (overhead, underground, under
floor, other side of walls) determined before digging, drilling or similar work is
begun?

Is the use of metal ladders prohibited in areas where the ladder or the person using
the ladder could come in contact with energized parts of equipment, fixtures or
circuit conductors?

Are all disconnecting switches and circuit breakers labeled to indicate their use or
equipment served?

Are disconnecting means always opened before fuses are replaced?

Do all interior wiring systems include provisions for grounding metal parts of
electrical raceways, equipment and enclosures?

Are all electrical raceways and enclosures securely fastened in place?

Are all energized parts of electrical circuits and equipment guarded against
accidental contact by approved cabinets or enclosures?

Is sufficient access and working space provided and maintained about all electrical
equipment to permit ready and safe operations and maintenance?

Are all unused openings (including conduit knockouts) in electrical enclosures and
fittings closed with appropriate covers, plugs or plates?

Are disconnecting switches for electrical motors in excess of two horsepower,
capable of opening the circuit when the motor is in a stalled condition, without
exploding? (Switches must be horsepower rated equal to or in excess of the motor
hp rating.) Is low voltage protection provided in the control device of motors driving
machines or equipment which could cause probable injury from inadvertent
starting?

Is each motor disconnecting switch or circuit breaker located within sight of the
motor control device?
Is each motor located within

Is each motor located within sight of its controller or the controller disconnecting
means capable of being locked in the open position or is a separate disconnecting
means installed in the circuit within sight of the motor?

Is the controller for each motor in excess of two horsepower, rated in horsepower
equal to or in excess of the rating of the motor it serves?

Are employees who regularly work on or around energized electrical equipment or
lines instructed in the cardiopulmonary resuscitation (CPR) methods?

Are employees prohibited from working alone on energized lines or equipment over
600 volts?

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