Siemens SIPROTEC 7SJ61, Руководство пользователя, Страница: 316 / 454

Technical Data
4.1 General Device Data
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
316
4.1.7 Climatic Stress Tests
Temperatures
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)
Humidity
4.1.8 Service Conditions
Standards: IEC 60255-6
Type test (acc. IEC 60068-2-1 and -2, Test Bd, for
16 h) –13°F to +185° F or –25° C to +85° C
Admissible temporary operating temperature
(tested for 96 h) –4° F to +158 °F or –20° C to +70° C (legibility of display
may be restricted from +131° F or +55° C)
Recommended for permanent operation (according
to IEC 60255–6) +23° F to +131° F or –5° C to +55° C
Limit Temperatures for Storage –13° F to +131° F or –25° C to +55° C
Limit Temperatures during Transport –13° F to 158° F or –25° C to +70° C
STORE AND TRANSPORT OF THE DEVICE WITH FACTORY PACKAGING!
1
) UL–certified according to Standard 508 (Industrial Control Equipment):
Limit Temperatures for Normal Operation (i.e.
output relays not energized) –4° F to +158° F or –20° C to +70° C
Limit temperatures under maximum load (max. cont.
admissible input and output values) +23° F to +131° F or –5° C to +55° C
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 device is designed for installation in normal relay rooms and plants, so that electromagnetic compatibility
(EMC) is ensured if installation is done properly.
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.