2PAA118721 | Quick Installation Guide LD 810HSE Ex 9
– Electrostatic aspects must be considered when mounting the Linking
Devices. Electrostatic charges have to be prevented.
– In explosion group IIC and Zone 2 no protected plastic surfaces > 20 cm
2
are allowed; in IIB or dust-Ex, 100 cm
2
may be reached.
– The hazard of any objects falling onto a Linking Device must be
prevented.
– The Linking Device does not meet the requirements of impact protection
and IP54 (according to IEC 60529). It must be installed in a protective
enclosure which meets the requirements for resistance to impact and IP
as stated in section 26.4 of IEC/EN 60079-0. This enclosure must be fully
mounted and intact. If the enclosure is damaged, the operation is not
permitted.
– 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 mounting the equipment.
– When removing the packaging ensure that no dirt can enter the enclosure
or the plugs.
– If any vibration during the operation may cause parts of the plugs to
loosen, the plugs have to be provided with a light firm varnish used for
securing screws. An extraction force of 0.5 Nm has to be achieved at an
equivalent thread.
– To circuits of Zone 2 only such equipment may be connected that is
suitable for operation in this zone and has been certified accordingly.
– Components may only be replaced by original spare parts that are also
approved for the use in Ex -atmospheres. Spare parts are ordered as
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