Ex-Tech ZBW Série Mode D'emploi page 9

7. Safety instructions
 The following safety instructions should be read in conjunction with the following standards:

standard NF C 15 100

IEC 60079-14 (Electrical installations design, selection and erection)

standard IEC 60079-17 (Electrical installations inspection and maintenance)

standard IEC 60079-31 (Equipment dust ignition protection by enclosure "t").

decrees, laws, directives, circulars of application, standards, rules of art and any other documents
concerning its place of installation
It is strictly forbidden to change anything on and in the enclosure without our prior agreement
 Make sure the compatibility between the data on the nameplate of the enclosure with the existing
explosive atmosphere, the area of use, the ambient temperature and surfaces temperatures
 Any damage of the equipment can have for consequence to make ineffective the explosion-proof
protection
 The installation of the enclosure have to be performed in the state of the art in the technical domain
and only by qualified, competent and authorized person.
A defective or abnormal use as well as the non-observance of the instructions of this document
exclude any clause of of guarantee and do not engage our responsibility.
According to the standard IEC 60079-31, it is prohibited to operate the enclosure if the dust
thickness on it is greater than 50 mm.
Ex-tech Solution ensures the traceability of the enclosures up the first place of delivery.
8. Mounting and installation
 Check if the data on the label of the enclosure are consistent with the permitted conditions for the
explosive atmosphere of use
o Group II : surface industries
o Category 2
o G
o D
o IPxx
 Before installing and commissioning, ensure that the contact block or/and control units Ex d e:
o Is not damaged externally
o The surfaces of the lid which are in contact with the units have no damage
o The gasket of the units are present and not damaged
 Check if there is a specific position of mounting
 The wiring of the cable conductors must be made with a particular care
 The conductor insulation must reach the terminal. The conductive soul must not be damaged
 Not to exceed the authorized maximal temperature, it is advisable to choose the appropriate cables
and take a particular care in installing them

Follow the instructions contained in the specifications
ZBW025A12 – Index 08 – 20/05/2015
Operating instructions
Contact block and control units - ZBWE and XBW series
: high level of protection
: for Gas
: for Dusts
: IP rating (waterproofness for solids and liquids)
ENG
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