• Electrostatic aspects must be considered when mounting the bus-modules.
• The hazard of any objects falling onto the bus-module must be prevented.
• If the Linking Device does not meet the requirements of impact protection, protection
against impact energy and IP protection must be provided at the place of use as
per the requirements stated in section 26.4 of IEC/EN 60079-0.
• The Linking Device is defined as Instruments and apparatus of low energy according
to clause 23 of IEC/EN 60079-15; thus the requirement stated in sub-clause C,
limiting the transient characteristic to 40 % above the rated voltage, has to be adhered
to when erecting the equipment.
C.2 Commissioning and Installation
The Linking Device is mounted in a control system. Depending on the level of
IP-protection, an interval for cleaning the apparatus (dust settlement) must be defined.
Care must be taken that only equipment is installed that complies with the types of
protection relevant to the applicable zones and categories.
The following important facts must be observed:
• The equipment must be installed in a protective enclosure that meets the
requirements for resistance to impact as defined in the IEC/EN 60079-0, cl. 26.4.2.
This enclosure must pass the environmental tests according to IEC/EN 60079-0
standards for the preferred ambient range, that is, it must be submitted to these
tests (thermal endurance, impact and IP, this test sequence must be observed).
• The equipment must be used only as intended.
• The Functional Earth connection of the apparatus must be connected with the
protective earth of the system.
• The Linking Device is only operated in a fully mounted and intact enclosure, if the
enclosure is damaged, the operation is not permitted.
• If ambient temperature exceeds 58 °C at the place of installation, the temperature
of the connecting cables increases. Hence, ensure that,
– temperature of the cables does not exceed 80 °C
OR
– suitable cables are used that can withstand temperatures of minimum 90 °C.
• When the package is removed, ensure that dirt does not enter the enclosure or the
plugs.
2PAA114135-610 114
C Linking Device for Zone 2 Explosion and Protection Environment
C.2 Commissioning and Installation
To Next Page
Loading...
Need help?
General
