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7.
Installation
7.1. General
Correct installation is of primary impor-
!
tance. The manufacturer's instructions
must be carefully studied and followed.
It is good practice to use gloves for han-
dling the pieces during installation.
7.2. Installation and service conditions
The following Standards must be taken into par-
ticular consideration during installation and serv-
ice:
– IEC60694/DIN VDE 0101
– VDE 0105: Electrical installation service
– DIN VDE 0141: Earthing systems for installa-
tions with rated voltage above 1 kV
– All the accident prevention regulations in force
in the relative countries.
7.2.1. Normal conditions
Follow the recommendations in the IEC 60694
and 62271-100 Standards. In more detail:
Ambient temperature
Maximum
Average maximum over 24 hours
Minimum (according to class – 5),
apparatus for indoor installation
Humidity
The average value of the relative humidity, measured for a
period longer than 24 hours, must not exceed 95%.
The average value of the water vapour pressure, meas-
ured for a period longer than 24 hours, must not exceed
2.2 kPa.
The average value of the relative humidity, measured for a
period longer than 1 month, must not exceed 90%.
The average value of the water vapour pressure, meas-
ured for a period longer than 1 month, must not exceed 1.8
kPa.
Altitude
< 1000 m above sea level.
All manuals and user guides at all-guides.com
7.2.2. Special conditions
Installations over 1000 m a.s.l.
Possible within the limits permitted by reduction of the di-
electric resistance of the air.
Increase in the ambient temperature
Reduction in the rated current.
Encourage heat dissipation with appropriate additional
ventilation.
Climate
To avoid the risk of corrosion or other damage in areas:
– with a high level of humidity, and/or
– with rapid and big temperature variations, take appro-
priate steps (for example, by using suitable electric heat-
ers) to prevent condensation phenomena.
For special installation requirements or other
operating conditions, please contact ABB.
The areas involved by the passage of
!
power conductors or conductors of aux-
iliary circuits must be protected against
access of any animals which might
cause damage or disservices.
+ 40 °C
+ 35 °C
– 5°
21
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