Mounting; Opening The Enclosure; Flanges; Electrical Connection - Cooper Crouse-Hinds S-TB-T Mode D'emploi

6 6 6 6 6 Installation Installation Installation
Installation Installation
For the mounting and operation, the
respective national regulations as well as the
general rules of engineering shall be
observed (IEC/EN 60079-14).
6.1 6.1 6.1

Mounting

Mounting Mounting
6.1 6.1 Mounting Mounting
The terminal box type S-TB-T can be
mounted without opening the enclosure.
Empty enclosures of the type S-TB-T are
intended for wall mounting. They may only be
affixed at the given points and shall be
positioned evenly.
The screw used shall fit the fixing
hole and must not damage it
(e.g. use of washer).
6.2 Opening the enclosures
Cover with screws:
The cover is not secured against falling.
The screws can be solved with a suitable
screwdriver.
6.3

Flanges

Flange plates for terminal box type S-TB-T
shall be fitted so that the IP protection is
maintained.
PE conductors fed from outside are to be
connected to the PE terminal provided on
the flange.
Attention: Metal flanges, metal plates
and metal cable glands shall be included
in the equipotential earth connection.
6.4 Opening the apparatus/

Electrical connection

Before opening the terminal boxes type
S-TB-T, it is necessary to ensure that
there is no voltage or to take suitable
protective measures.
The electrical connection of the apparatus
may only be carried out by skilled staff
(IEC/EN 60079-14).
The table indicating the current load
values which is provided on the cover
inside of the terminal boxes is to be
observed.
The insulation of the conductors shall
reach up to the terminal. The conductor
itself shall not be damaged.
The properly bared conductors of the cables
shall be connected, taking into account the
respective regulations.
The connectible min. and max. conductor
cross-sections will have to be observed.
All screws and/or nuts of the supply
terminals, and unused terminals, shall be
tightened down.
6 6 6 6 6
Cooper Crouse-Hinds GmbH
Explosion-protected terminal box
made of stainless steel type S-TB-T
The fitted standard terminals are designed
for direct connection of conductors with
copper cores.
The conductors shall be connected with
special care in order to maintain the
explosion category.
The supply terminals are designed for the
connection of copper conductors. If multi- or
fine-wire connecting cables are used, the
wire ends will have to be handled in acc. with
the applicable national and international rules
(e. g. use of ferrules).
If stud terminals are fitted, DIN cable lugs
shall be used.
If the inserted terminal rail is not equipped
completely with line-up terminals, the terminal
rail must be included in the equipotential
earth connection also.
In case of mixed equipment Ex e / Ex-i,
the required minimum distances will have
to be kept (see e.g. IEC/EN 60079-11).
When apparatus is open, it is necessary to
ensure (disconnect voltage supply) that
no voltage is carried over into the
connected intrinsically safe circuits.
The installation instructions for intrinsically
safe electrical apparatus shall be observed.
It is necessary to ensure that the permissible
external capacitance and inductance of the
special intrinsically safe circuits are not
exceeded.
6.4 Closing the enclosure/
cover closure
Any foreign matter is to be removed Any foreign matter is to be removed Any foreign matter is to be removed Any foreign matter is to be removed Any foreign matter is to be removed
from the apparatus. from the apparatus. from the apparatus.
from the apparatus. from the apparatus.
Cover with screws:
The screws can be tightened with a suitable
screwdriver.
In order to ensure the required minimum
protection category, the cover screws are to
be tightened down (see technical datas).
Overtightening might impair the protection
category.
6.5

Taking into operation

Prior to taking the terminal box type
S-TB-T into operation, the tests specified in
the relevant national regulations shall be
carried out.
In addition, the correct functioning and
installation of the terminal box type
S-TB-T in accordance with these operating
instructions and other applicable regulations
shall be checked.
Attention:
Only fully certified enclosures may be
installed and put into operation.
Incorrect installation and use of the
terminal box type S-TB-T can invalidate
the guarantee.
7 Maintenance / Servicing
The relevant national regulations
which apply to the maintenance/repair of
electrical apparatus in explosive
atmospheres, shall be observed
(IEC/EN 60079-17).
The required maintenance intervals depend on
the specific application and shall therefore
be determined by the user dependent on the
conditions of use.
When servicing the apparatus, particularly
those parts that are decisive for the type of
protection against explosion, shall be
checked (e.g. intactness and tightness of the
enclosure, efficacy of the gaskets and the
cable entries).
If during servicing, repairs prove to be
necessary, section 8 of these operating
instructions shall be observed.
8 8 8 8 8 Repairs / Overhaul / Repairs / Overhaul / Repairs / Overhaul /
Repairs / Overhaul / Repairs / Overhaul /
Modifications Modifications Modifications Modifications Modifications
Overhaul and repairs may only be carried out
with original COOPER CROUSE-HINDS
spare parts.
Repairs that affect the explosion
protection, may only be carried out by
COOPER CROUSE-HINDS or a qualified
electrician in compliance with the
applicable national rules
(IEC/EN 60079-19).
Modifications to the apparatus or changes of
its design are not permitted.
9 Disposal / Recycling
When the terminal box type S-TB-T is
disposed of, the respective national
regulations on waste disposal shall be
observed.
Subject to modifications or supplement of the
product range.