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requirements for clearance/creepage, cross-connections and
earthing. All wiring must be carried out in accordance with the
code of practice and/or instructions of EN 60079-14. Use the
correct size of tool for tightening the terminal clamps
(screwdriver or spanner). Terminals shall be rail or internal plate
mounted. Terminals must be installed in accordance with the
operating instructions issued by the respective manufacturer
and in compliance with requirements for clearance/creepage,
cross-connections and earthing.
Each terminal position may only have one conductor fitted,
unless multiple conductors have previously been joined in a
suitable manner. To obtain an appropriate connection of the
cables in the terminals, the use of crimping lugs is preferred. All
leads must be insulated for the appropriate voltage. All unused
terminal screws should be fully tightened down. The installer
shall ensure that creepage and clearance distances are compliant
with EN 60079-7 and that the voltage, current and maximum
dissipated power shown on the label are not exceeded.
4.4 Earthing
Terminal boxes shall be earthed in accordance with the relevant
code of practise. If an internal/external earth/ground connection
is provided it must be connected to the appropriate earth
bonding circuit before electrical power is connected to the
contents of the enclosure.
4.5 Cable Glands
Use only Ex e and/or Ex tD A21 approved glands (as relevant).
If glands of lower IP rating are used, then the whole unit is
automatically derated to the same value of the glands. Ensure
that all the glands selected are suitable for the cable so as to
prevent self-loosening and ensure permanent sealing to avoid
moisture ingress. Seal washers may be used to improve the seal
between the gland body and the enclosure.
All unused cable entries must be sealed with their associated
approved blind plugs.
4.6 Cabling
Pull the cables into the box, leaving trailing leads of a length specified
by site practice and secure any cable armour in accordance with site
practice.
4.7 Components
Components to be incorporated into or used as replacement parts
of the equipment shall be fitted by suitably trained personnel.
5. Servicing and maintenance and repairing
Inspection and maintenance of this equipment shall be
carried out by suitably trained personnel in accordance
with the applicable code of practice (e.g.EN 60079-17 and EN
61241-17). Repair of this equipment shall be carried out by
suitably trained personnel in accordance with the applicable
code of practice (e.g. EN 60079-19).During servicing, it is
particularly important to check those components upon which
the type of protection depends.
5.1 Routine Maintenance
Routine maintenance is required in order to guarantee the
efficiency of the terminal box and to maintain the required
level of protection.
1) Check that the lid seal is in place and not damaged
MP37103
each time the enclosure is closed
2) Check that all the lid fixing screws are in place and secured
each time the enclosure is closed
3) Check that the mounting screws/bolts are tight and free of
corrosion annually
4) Check the security of all cable glands annually
5) Check the enclosure for damage annually
6) Check that all screw clamp terminals are secure
as manufacturers recomendations
7) In zones with presence of combustible dusts it is necessary
to periodically clean the upper surface of the box, limiting the
depth of the layer to less than 5 mm.
5.2 Chemical attack
Consideration should be given to the environment in which
these terminal boxes are to be used to determine the suitability
of these materials to withstand any corrosive agents that may
be present.
5.3 Disposal
Disposal and recycling of the product shall be done according
to national regulations for waste disposal and recycling.
5.4 Components
Components to be incorporated into or used as replacement parts
of the equipment shall be fitted by suitably trained personnel.
FRANÇAIS
LIRE ATTENTIVEMENT CE DOCUMENT AVANT L'INSTALLATION
1. Normes de sécurité
Les appareils à sécurité renforcée de la série ZENITH P sont
utilisés pour les installations fixes dans les environnements à
risque potentiel d'explosion identifiés comme Zone 1 ou 2 selon
la norme EN 60079-0 ainsi que comme Zone 21 ou 22 selon la
norme EN 61241-0.
Ces instructions d'installation, utilisation et entretien doivent être
conservés dans un endroit sûr en vue de toute consultation future.
Durant le fonctionnement ou les opérations d'entretien de l'appareil,
ne pas laisser ce manuel ou d'autres objets à l'intérieur du caisson.
Utiliser les appareils à sécurité renforcée de la série ZENITH P
exclusivement pour un usage approuvé et les conserver en
parfait état et propres.
Les caissons sont conçus pour résister à un choc de 7J et pour
être utilisés dans des conditions de vibration normales. Ils ne
sont pas projetés pour une utilisation dans des environnements
soumis à des conditions de vibration extrêmes.
Le matériau du caisson est du polyester renforcé fibre de verre.
La présence de graphite garantit une résistance superficielle
comprise entre 10
électrostatiques. En cas d'assemblage incorrect, le type de
protection ne peut être garanti. Utiliser uniquement des pièces
de rechange originales fournies par SCAME.
Aucune modification/usinage n'est autorisé sur le caisson sauf
indication expresse de ce manuel.
NE PAS OUVRIR LE CAISSON SOUS TENSION EN CAS
D'ATMOSPHÈRE EXPLOSIVE
Se conformer rigoureusement aux règles anti-accidents
nationales et aux instructions de sécurité de ce manuel
pour toute intervention sur le caisson.
ATEX 9003 - 5
6
et 10
9
Ω et élimine le risque de décharges
ZP90805-1
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