IOM
– STERLING III - ZONE 2 LED (ATEX, IECEx, Ex ec)
I-ST3N-01.doc
Issue 8
December 2018
3
3.0 Installation and Safety
3.1 General
There is no health hazards associated with this product whilst in normal use. However, care should be exercised
during the following operations. Installation should be carried out in accordance with relevant EN / IEC standard or
the local hazardous area code of practice, whichever is appropriate.
These instructions should be read carefully before attempting to install the luminaire. Copies of these instructions
should be held in a safe place for future reference.
It is the responsibility of the installer to ensure that the apparatus selected is fit for its intended purpose and that
the installation, operation and maintenance of the apparatus complies with regulations, standards or codes of
practice applicable.
Any specific installation instructions must be referred to. In the UK, the requirements of the Health and Safety at
Work Act must be met and electrical work associated with this product must be in accordance with the "Manual
Handling Operations Regulations" and "Electricity at Works Regulations 1989". Your attention is drawn to the
paragraphs (i) 'Electrical Supplies', (ii) 'Electrical Fault Finding and Replacement' and (iii) 'Inspection and
Maintenance'. The luminaires are Class 1 and should be effectively earthed.
The luminaires are quite heavy and suitable means of handling on installation must be provided.
Certification details on the rating plate must be verified against the application requirements before installation.
The information in this leaflet is correct at the time of publication. The manufacturer reserves the right to make
specification changes as required.
The GRP body & polycarbonate diffuser presents a potential source of ignition by
electrostatic electricity
. The
diffuser should only be cleaned using a damp cloth. The luminaire should not be mounted very near to any
probable location of fast moving stream of dry air, steam etc. which could generate a propagating brush static
discharge
3.1.1
Use in Combustible Dust Atmospheres
Where the equipment is used in ignitable dust atmospheres reference must be made to the selection and
installation standards in order that the equipment is used correctly. In particular this applies to the de-rating of
surface temperature for use where dust clouds may be present. Dust layers should not be allowed to accumulate
on the fitting surface and good housekeeping is required for safe operation. Dust in layers has the potential to
form ignitable clouds and to burn at lower temperatures.
Self tapping screws are supplied with the luminaire to lock the diffuser clamps.
These must be fitted to maintain
the certification.
Refer to EN/IEC 60079-10-2 & EN/IEC 61241-14 for additional details of selection, installation and maintenance.
3.1.2 Hybrid Mixtures
– Gas plus Dust
Where Hybrid mixtures exist as defined in EN/IEC1127 as a potentially explosive atmosphere, consideration
should be given to verifying that the maximum surface temperature of the luminaire is below the ignition
temperature of the hybrid mixture.
3.1.3
Cleaning
The body of the luminaire may be cleaned with a mild solution of household detergent and water, after cleaning
the body should be washed and wiped with clean water. The diffuser should not be polished or wiped with a dry
cloth, as a risk of explosion due to electrostatic discharge may result. Cleaning of the diffuser with any chemical or
hydrocarbon solvent based cleaner may result in severe damage.
3.1.4
Aggressive substances
If the equipment is likely to come into contact with aggressive substances, then it is the responsibility of the user to
take suitable precautions that prevent it from being adversely affected, thus ensuring that the type of protection
provided by the equipment is not compromised.
Aggressive substances: e.g. acidic liquids or gases that may attack metals or solvents that may affect polymeric
materials.
Suitable precautions: e.g. regular checks as part of routine inspections or establishing from the material’s data
sheets that it is resistant to specific chemicals.
