Installation Interface Unit
FLOWSIC100 Flare-XT · Operating Instructions · 8023761/V 1-0/2020-10 · © SICK Engineering GmbH 109
Cables
● Cables must fulfill the requirements according to EN 60079-14.
● Cables must have a permitted operating temperature of min. 70 °C.
● Protect cables especially endangered by thermal, mechanical or chemical stress, e.g. by
laying in protective tubes.
● Cables must be flame-retardant according to DIN VDE 0472 Part 804. The fire behavior
according to B / IEC 60332-1 must be approved.
● The cross-section of each individual wire must not be smaller than 0.5 mm².
● Observe the clamping range of the cable glands for cable selection.
● Cables for Ex-e cable inlets must comply with the requirements in EN 60079-14 Section
11.3.
● The existing air and creepage paths according to EN 60079-7 or EN 60079-15 may not
be reduced by cable connections in the terminal box.
● Protect the wire ends with connector sleeves against fraying.
● Replace unused cable inlets with the enclosed Ex-e sealing plugs.
● Connect or safeguard unused wires to ground so that a short circuit with other
conductive parts is excluded.
● Carry out potential equalization in accordance with EN 60079-14 (see also the following
Section).
● Use thread sealant according to EN 60079-14, Section 9.4 for threads with ½" NPT.
Specific requirements for installation in the USA and Canada
● Installations in USA must be carried out according to NEC (ANSI/NFPA70).
● Installations in Canada must be carried out according to CEC part 1.
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