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Initial safety checks shall include:
Initial safety checks shall include:
the circuit until it is satisfactorily dealt with. If the fault
Initial safety checks shall include:
Initial safety checks shall include:
Initial safety checks shall include:
intrinsically safe.
intrinsically safe.
5) Presence of fire extinguisher
5) Presence of fire extinguisher
• That capacitors are discharged: this shall be done in
• That capacitors are discharged: this shall be done in
cannot be corrected immediately but it is necessary to
• That capacitors are discharged: this shall be done in
• That capacitors are discharged: this shall be done in
• That capacitors are discharged: this shall be done in
a safe manner to avoid possibility of sparking;
a safe manner to avoid possibility of sparking;
continue operation, an adequate temporary solution
a safe manner to avoid possibility of sparking;
a safe manner to avoid possibility of sparking;
a safe manner to avoid possibility of sparking;
If any hot work is to be conducted on the refrigeration
If any hot work is to be conducted on the refrigeration
• That there no live electrical components and wiring
• That there no live electrical components and wiring
shall be used. This shall be reported to the owner of the
• That there no live electrical components and wiring
• That there no live electrical components and wiring
• That there no live electrical components and wiring
equipment or any associated parts, appropriate fire
equipment or any associated parts, appropriate fire
are exposed while charging, recovering or purging the
are exposed while charging, recovering or purging the
equipment so all parties are advised.
are exposed while charging, recovering or purging the
are exposed while charging, recovering or purging the
are exposed while charging, recovering or purging the
extinguishing equipment shall be available to hand.
extinguishing equipment shall be available to hand.
system;
system;
system;
Initial safety checks shall include:
system;
system;
Have a dry powder or CO2 fire extinguisher adjacent to
Have a dry powder or CO2 fire extinguisher adjacent to
• That there is continuity of earth bonding.
• That there is continuity of earth bonding.
• That there is continuity of earth bonding.
• That capacitors are discharged: this shall be done in
• That there is continuity of earth bonding.
• That there is continuity of earth bonding.
the charging area.
the charging area.
2.Repairs to sealed components
2.Repairs to sealed components
2.Repairs to sealed components
a safe manner to avoid possibility of sparking;
2.Repairs to sealed components
2.Repairs to sealed components
6) No ignition sources
6) No ignition sources
1) During repairs to sealed components, all electrical
1) During repairs to sealed components, all electrical
1) During repairs to sealed components, all electrical
• That there no live electrical components and wiring
1) During repairs to sealed components, all electrical
1) During repairs to sealed components, all electrical
No person carrying out work in relation to a
No person carrying out work in relation to a
supplies shall be disconnected from the equipment
supplies shall be disconnected from the equipment
supplies shall be disconnected from the equipment
are exposed while charging, recovering or purging the
supplies shall be disconnected from the equipment
supplies shall be disconnected from the equipment
refrigeration system which involves exposing any pipe
refrigeration system which involves exposing any pipe
being worked upon prior to any removal of sealed
being worked upon prior to any removal of sealed
being worked upon prior to any removal of sealed
system;
being worked upon prior to any removal of sealed
being worked upon prior to any removal of sealed
work that contains or has contained flammable
work that contains or has contained flammable
covers, etc. If it is absolutely necessary to have an
covers, etc. If it is absolutely necessary to have an
covers, etc. If it is absolutely necessary to have an
• That there is continuity of earth bonding.
covers, etc. If it is absolutely necessary to have an
covers, etc. If it is absolutely necessary to have an
refrigerant shall use any sources of ignition in such a
refrigerant shall use any sources of ignition in such a
electrical supply to equipment during servicing, then a
electrical supply to equipment during servicing, then a
electrical supply to equipment during servicing, then a
2.Repairs to sealed components
electrical supply to equipment during servicing, then a
electrical supply to equipment during servicing, then a
manner that it may lead to the risk of fire or explosion.
manner that it may lead to the risk of fire or explosion.
permanently operating form of leak detection shall be
permanently operating form of leak detection shall be
permanently operating form of leak detection shall be
1) During repairs to sealed components, all electrical
permanently operating form of leak detection shall be
permanently operating form of leak detection shall be
All possible ignition sources, including cigarette
All possible ignition sources, including cigarette
located at the most critical point to warn of a
located at the most critical point to warn of a
located at the most critical point to warn of a
supplies shall be disconnected from the equipment
located at the most critical point to warn of a
located at the most critical point to warn of a
smoking, should be kept sufficiently far away from the
smoking, should be kept sufficiently far away from the
potentially hazardous situation.
potentially hazardous situation.
potentially hazardous situation.
being worked upon prior to any removal of sealed
potentially hazardous situation.
potentially hazardous situation.
site of installation, repairing, removing and disposal,
site of installation, repairing, removing and disposal,
2) Particular attention shall be paid to the following to
2) Particular attention shall be paid to the following to
2) Particular attention shall be paid to the following to
covers, etc. If it is absolutely necessary to have an
2) Particular attention shall be paid to the following to
2) Particular attention shall be paid to the following to
during which flammable refrigerant can possibly be
during which flammable refrigerant can possibly be
ensure that by working on electrical components, the
ensure that by working on electrical components, the
ensure that by working on electrical components, the
electrical supply to equipment during servicing, then a
ensure that by working on electrical components, the
ensure that by working on electrical components, the
released to the surrounding space. Prior to work taking
released to the surrounding space. Prior to work taking
casing is not altered in such a way that the level of
casing is not altered in such a way that the level of
casing is not altered in such a way that the level of
permanently operating form of leak detection shall be
casing is not altered in such a way that the level of
casing is not altered in such a way that the level of
place, the area around the equipment is to be surveyed
place, the area around the equipment is to be surveyed
protection is affected. This shall include damage to
protection is affected. This shall include damage to
protection is affected. This shall include damage to
located at the most critical point to warn of a
protection is affected. This shall include damage to
protection is affected. This shall include damage to
to make sure that there are no flammable hazards or
to make sure that there are no flammable hazards or
cables, excessive number of connections, terminals not
cables, excessive number of connections, terminals not
cables, excessive number of connections, terminals not
potentially hazardous situation.
cables, excessive number of connections, terminals not
cables, excessive number of connections, terminals not
ignition risks. "No Smoking" signs shall be displayed.
ignition risks. "No Smoking" signs shall be displayed.
7) Ventilated area
7) Ventilated area
made to original specification, damage to seals,
made to original specification, damage to seals,
made to original specification, damage to seals,
2) Particular attention shall be paid to the following to
made to original specification, damage to seals,
made to original specification, damage to seals,
incorrect fitting of glands, etc.
incorrect fitting of glands, etc.
incorrect fitting of glands, etc.
ensure that by working on electrical components, the
incorrect fitting of glands, etc.
incorrect fitting of glands, etc.
Ensure that the area is in the open or that it is
Ensure that the area is in the open or that it is
Ensure that apparatus is mounted securely.
Ensure that apparatus is mounted securely.
Ensure that apparatus is mounted securely.
casing is not altered in such a way that the level of
Ensure that apparatus is mounted securely.
Ensure that apparatus is mounted securely.
adequately ventilated before breaking into the system
adequately ventilated before breaking into the system
Ensure that seals or sealing materials have not
Ensure that seals or sealing materials have not
Ensure that seals or sealing materials have not
protection is affected. This shall include damage to
Ensure that seals or sealing materials have not
Ensure that seals or sealing materials have not
or conducting any hot work. A degree of ventilation
or conducting any hot work. A degree of ventilation
degraded such that they no longer serve the purpose
degraded such that they no longer serve the purpose
degraded such that they no longer serve the purpose
cables, excessive number of connections, terminals not
degraded such that they no longer serve the purpose
degraded such that they no longer serve the purpose
shall continue during the period that the work is carried
shall continue during the period that the work is carried
of preventing the ingress of flammable atmospheres.
of preventing the ingress of flammable atmospheres.
of preventing the ingress of flammable atmospheres.
made to original specification, damage to seals,
of preventing the ingress of flammable atmospheres.
of preventing the ingress of flammable atmospheres.
out. The ventilation should safely disperse any released
out. The ventilation should safely disperse any released
Replacement parts shall be in accordance with the
Replacement parts shall be in accordance with the
Replacement parts shall be in accordance with the
incorrect fitting of glands, etc.
Replacement parts shall be in accordance with the
Replacement parts shall be in accordance with the
refrigerant and preferably expel it externally into the
refrigerant and preferably expel it externally into the
manufacturer's specifications.
manufacturer's specifications.
manufacturer's specifications.
Ensure that apparatus is mounted securely.
manufacturer's specifications.
manufacturer's specifications.
atmosphere.
atmosphere.
NOTE: The use of silicon sealant may inhibit the
NOTE: The use of silicon sealant may inhibit the
NOTE: The use of silicon sealant may inhibit the
Ensure that seals or sealing materials have not
NOTE: The use of silicon sealant may inhibit the
NOTE: The use of silicon sealant may inhibit the
8) Checks to the refrigeration equipment
8) Checks to the refrigeration equipment
effectiveness of some types of leak detection
effectiveness of some types of leak detection
effectiveness of some types of leak detection
degraded such that they no longer serve the purpose
effectiveness of some types of leak detection
effectiveness of some types of leak detection
Where electrical components are being changed, they
Where electrical components are being changed, they
equipment. Intrinsically safe components do not have
equipment. Intrinsically safe components do not have
equipment. Intrinsically safe components do not have
of preventing the ingress of flammable atmospheres.
equipment. Intrinsically safe components do not have
equipment. Intrinsically safe components do not have
shall be fit for the purpose and to the correct
shall be fit for the purpose and to the correct
to be isolated prior to working on them.
to be isolated prior to working on them.
to be isolated prior to working on them.
Replacement parts shall be in accordance with the
to be isolated prior to working on them.
to be isolated prior to working on them.
specification. At all times the manufacturer's
specification. At all times the manufacturer's
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