cemp F Serie Manual De Instrucciones página 11

2.2 Installation and application
2.2.1 Thermal and environmental specifications
2.2.2 Harsh industrial environments
2.2.1 Thermal and environmental specifications
Operating conditions
Except for some particular notes, the
specifications of the motors of chap. 4
(Performance data) correspond to the
operating condition S1 (uninterrupted
operation according to IEC 34-1).
Special requirements for other approved
GB conditions of use can be met.
Explosion groups and temperature
classes
Except for some particular notes, motors are
available in Group IIB or IIC.
The standard temperature class with which
motors are supplied is T4, unless otherwise
specified in chap. 4.1 (Performance data).
Motors class T5 or T6 are also available on
request.
2.2.2 Harsh industrial environments
For harsh industrial environments (among
which chemical industry, raw materials
industry, and energy production), proposes a
hardened model according to the German
standard VIK (Vereinigung Industrielle Kraft
wirschaft).
The corresponding option, called "VIK",
relates to EEx-de IIC motors.
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Ambient temperature and altitude
The control of surface temperatures within
the limits set forth by the temperature class
entails the use at an ambient temperature
which should be less than or equal to 40° C
and at an altitude lower than or equal to
1000 m (according to NF C 51-111).
The minimum ambient temperature for using
the standard motors of the choice chart is of
-20° C.
Further information on operating conditions
not complying with these limits is available
on request.
Winding overheating
The overheating of motor winding described
in chap. 4 (Performance data) is less than or
equal to 80 K.
Compared to the standard, the construction
differences are:
- improved safety EEx-e large-sized
terminal box, provided with screw studs,
with adjustable cable output that prevents
having to move the board.
- PTC thermal protection included,
- stainless steel nuts, bolts and nameplate,
- two-layer epoxy resin outside finish,
2 x 40 µm,
- inside finish: insulating paint on rotor and
winding coil heads,
- additional nameplate in the terminal box,
- rain cap.
Thermal limits of the winding insulators
The winding insulators are made with class
F materials.
Humidity
The standard motors of the choice chart
can be used up to a relative humidity of
H% = 90.