Technical Data
4.1 General Device Data
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
477
4.1.7
Climatic Stress Tests
Temperatures
1
)
Humidity
4.1.8
Service Conditions
Standards:
IEC 60255-6
Type tested (acc. IEC 60086-2-1 and -2, Test Bd, for
16 h)
–13 °F to +185 °F or -25.00 °C to +85 °C
Permissible temporary operating temperature
(tested for 96 h)
–20 °C to +70 °C or –4 °F to +158 °F
(legibility of the display may be restricted from +55 °C or
+131 °F
)
Recommended for permanent operation (according
to IEC 60255-6)
+23 °F to +131 °F or -5 °C to +55 °C
Limiting Temperatures for Storage
–13 °F to +131 °F or -25 °C to +55 °C
Limiting temperatures for transport
–13 °F to +158 °F or -25 °C to +70 °C
STORE AND TRANSPORT THE DEVICE WITH FACTORY PACKAGING.
1
) UL–certified according to Standard 508 (Industrial Control Equipment):
Limiting temperatures for normal operation (i.e.
output relays not energized)
–4 °F to +158 °F or -20 °C to +70 °C
Limiting temperatures with maximum load (max.
cont. permissible energization of inputs and out-
puts)
+23 °F to +131 °F or –5 °C to +55 °C for 7SJ62
–5 °C up to +40 °C or +23 °F up to +104 °F for 7SJ64
Permissible humidity
Mean value per year
≤
75 % relative humidity;
on 56 days of the year up to 93 % relative humidity; con-
densation must be avoided!
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 condensation 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 electromagnetic compatibility (EMC).
In addition, the following is recommended:
• All contacts 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. For substations with lower operating voltages, no special mea-
sures are normally required.
• Do not withdraw or insert individual modules or boards while the protective device is energized. In with-
drawn condition, some components are electrostatically endangered; during handling the ESD standards
(for
E
lectrostatic
S
ensitive
D
evices) must be observed. They are not endangered when inserted into the
case.
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