Climatic Stress Tests; Service Conditions - Siemens SIPROTEC 7SJ62 Instruction Manual

10.1.7 Climatic Stress Tests

Ambient Tempera-
tures
Humidity

10.1.8 Service Conditions

7SJ62 Manual
C53000-G1140-C121-1
– Shock
IEC 60255–21–2, Class1
IEC 60068–2–27
– Continuous Shock
IEC 60255–21–2, Class 1
IEC 60068–2–29
Standards:
– Recommended operating temperature +23°F to +131°F
– Limiting, temporary (transient)
operating temperatures
– Limiting temperatures for storage
– Limiting temperatures for transport
STORE AND TRANSPORT THE DEVICE WITH FACTORY PACKAGING.
Permissible Humidity
Siemens recommends that all devices be installed such that they are not exposed to
direct sunlight, nor subject to large fluctuations in temperature that may cause conden-
sation to occur.
The protective device is designed for use in an industrial environment and an electrical
utility environment. Proper installation procedures should be followed to ensure elec-
tromagnetic compatibility (EMC). In addition, the following are recommended:
• All contactors and relays that operate in the same cubicle, cabinet, or relay panel
as the numerical protective device should, as a rule, be equipped with suitable
surge suppression components.
• For substations with operating voltages of 100 kV and above, all external cables
should be shielded with a conductive shield grounded at both ends. The shield must
be capable of carrying the fault currents that could occur. For substations with lower
operating voltages, no special measures are normally required.
Half-sine shaped
Acceleration 15 g, duration 11 ms,
3 shocks in each direction of
3 orthogonal axes.
Half-sine shaped
Acceleration 10 g, duration 16 ms,
1000 shocks in each direction of
3 orthogonal axes.
IEC 60255–6
or –5 °C to +55 °C
Visibility of display may be impaired at
+131°F and above
– 4°F to +158°F or –20 °C to +70 °C
–13°F to +131°F or –25 °C to +55 °C
–13°F to +158°F or –25 °C to +70 °C
Mean value per year ≤75% relative
humidity, on 56 days of the year up to 93%
relative humidity.
CONDENSATION MUST BE AVOIDED
Technical Data
10-9