Idiomas disponibles
Idiomas disponibles
c) General work area
All maintenance staff and others working in the local area shall be instructed on the
nature of work being carried out.
Work in confined spaces shall be avoided.
The area around the workspace shall be sectioned off.
Ensure that the conditions within the area have been made safe by control of
flammable material.
d) Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during
work, to ensure the technician is aware of potentially flammable atmospheres.
Ensure that the leak detection equipment being used is suitable for use with flammable
refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.
e) Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration equipment or any associated
parts, appropriate fire extinguishing equipment shall be available at hand.
Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
f) No ignition sources
No person carrying out work in relation to a refrigeration system which involves
exposing any pipe work that contains or has contained flammable refrigerant shall
use any sources of ignition in such a manner that it may lead to the risk of fire or
explosion.
All possible ignition sources, including cigarette smoking, should be kept sufficiently
far away from the site of installation, repairing, removing and disposal, during which
flammable refrigerant can possibly be released to the surrounding space.
Prior to work taking place, the area around the equipment is to be surveyed to make
sure that there are no flammable hazards or ignition risks. No Smoking signs shall be
displayed.
g) Ventilated area
Ensure that the area is in the open or that it is adequately ventilated before breaking
into the system or conducting any hot work.
A degree of ventilation shall continue during the period that the work is carried out.
The ventilation should safely disperse any released refrigerant and preferably expel
it externally into the atmosphere.
h) Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose and
to the correct specification.
At all times the manufacturer's maintenance and service guidelines shall be followed.
If in doubt consult the manufacturer's technical department for assistance.
The following checks shall be applied to installations using flammable refrigerants:
The charge size is in accordance with the room size within which the refrigerant
containing parts are installed; The ventilation machinery and outlets are operating
adequately and are not obstructed; If an indirect refrigerating circuit is being used,
the secondary circuit shall be checked for the presence of refrigerant; Marking to the
equipment continues to be visible and legible. Markings and signs that are illegible
shall be corrected; Refrigeration pipe or components are installed in a position where
they are unlikely to be exposed to any substance which may corrode refrigerant
containing components, unless the components are constructed of materials which
are inherently resistant to being corroded or are suitably protected against being so
corroded.
i) Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks
and component inspection procedures. If a fault exists that could compromise safety,
then no electrical supply shall be connected to the circuit until it is satisfactorily dealt
with. If the fault cannot be corrected immediately but it is necessary to continue
operation, an adequate temporary solution shall be used.
This shall be reported to the owner of the equipment so all parties are advised. Initial
EN - 7
SECCOPROF 30P - 40P
