Safe Installation; Safe Maintenance - S&P TGT Manual De Instrucciones

must be disabled or by-passed in event of one off emergency smoke operation. Power supply cables to fan motor must be
suitable for temperature and time stated when installed in potential fire area. Refer cables compliant with IEC 60332.
Power supply should be via a protected source to enable fan to run under emergency fire smoke conditions, Direct on line.
Emergency ventilation fans, can be dual purpose, or dedicated Emergency operation. If fan is not operated for long periods
then fan should be run as prescribed by local regulations, or as minimum 15 minutes each month, to ensure safe operation.
Ensure system operation is safe in event of power cut / power outage / disruption to power supply. If ventilation is stopped
due to disruption to power supply, ensure no risk due to build-up of hazardous substance, excessive temperature etc. Care may
be needed when restarting fan after disruption to power supply.
1.2.5

Safe installation:

Avoid risk of foreign objects, debris being drawn into, or falling into fan impeller.
Allow safe access to fan for inspection, maintenance, replacement of parts, cleaning / housekeeping, especially for dust
hazards, typically:-
For small fans, access with suitable lifting, should be provided, greater than largest fan dimension, or minimum of 1 metre, to
allow removal of complete fan to safe location for repair.
For large fans, access with suitable lifting to repair in-situ, should be provided, greater than largest impeller / motor dimension,
or minimum of 1 metre. Provision of beam fixed to structure, over fan location, to assist lifting, may be considered good
practice, for future maintenance.
Ensure all necessary safety guards are fitted and secure to prevent injury.
Ensure safe transport of hazardous substances without leakage to non-hazardous areas, especially via duct connections, where
appropriate sealing may be required.
Axial fans should be installed with clear, unobstructed airflow upstream and downstream, if flexible connectors are fitted to
minimize vibration transmission, these should be taught and not encroach into airstream to disrupt airflow.
Other risks have been identified that need consideration by installer, especially for
ATEX applications include:-
Lightning: risk directly or indirectly due to voltage surge or high temperature?
Electromagnetic waves and Radio Frequency (RF): risk due to proximity of RF, laser, radiation equipment?
Ionizing Radiation: risk due to X-Ray, radioactive devices?
Ultrasonic: risk due to electro-acoustic energy?
Adiabatic compression and shock waves: risk due to high temperature?
Exothermic Reaction: risk due to mix of materials passing through fan equipment, or in close proximity?
If these or other risks prevail, then appropriate action should be taken, refer EN 60079-14.
1.2.6 Safe commissioning:
Installer to ensure safe to start fan and commission, which may include determination of installed air duty and system pressure
The installer is responsible for initial inspection of workplace ATEX system before it is set to work. Refer IEC EN 60079 – 14
1.2.7

Safe maintenance:

The user is responsible for effective housekeeping, maintenance, replacement of parts, cleaning, especially where dust may
form inside the fan.
Further guidance for ATEX may be found in IEC EN 60079 – 17, IEC EN 60079 – 19
Do not remove safety protection guards or open access doors when fan is in operation, or if hazardous substance is present.
Fan equipment should be electrically isolated and locked out before any access or work started.
Any Tools for use in an ATEX hazard area must be suitable, and used correctly to ensure safe operation, especially avoiding
sparks, flames or high temperatures. Further guidance may be found in EN 1127-1, EN 60079-14, EN 60079-17.
Any work undertaken on ATEX fan equipment by persons other than those from manufacturer or agreed with manufacturer,
will invalidate the provisions of the guarantee.
Refer to specific motor O + M Instructions supplied with fan equipment for further guidance.
1.2.8 Safe documentation:
For ATEX areas, the Installer / User is responsible for a verification dossier to show compliance of electrical equipment and
installation. This O+M Instruction manual must be included and retained for the user. Refer IEC EN 60079 – 14
1.2.9 Support: If there is any problem with Fan equipment contact your local S&P Distributor. S&P reserve the right to make
modifications without prior notice.
1.2.10 For ATEX areas, further sources of guidance may be found in International and European Standards, typically:-
EN 1127-1 Explosive atmospheres. Explosion prevention and protection
EN 13463: Non electrical equipment for use in potentially explosive atmospheres
EN ISO 13857: Safety of machinery
IEC EN 14986: Design of fans working in potentially explosive atmospheres
IEC EN 60079-0: Equipment – General requirements
IEC EN 60079-10-1: Classification of areas – Explosive gas atmospheres
IEC EN 60079-10-2: Classification of areas – Combustible dust atmospheres
IEC EN 60079-14: Electrical installations in hazardous areas (other than mines)
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