4 Technical Data
304
7UM61 Manual
C53000-G1176-C127-3
4.1.7
Climatic Stress Tests
Temperatures
1
)
Humidity
4.1.8
Deployment Conditions
Standards:
IEC 60255-6
Type tested (acc. IEC 60086-2-1 and -2, Test
Bd, for 16 h)
–25
°
C to +85
°
C / –13
°
F to +185
°
F
admissible temporary operating temperature
(tested for 96 h)
– 4.00
°
F to +158.00
°
F / –20
°
C to +70
°
C (legi-
bility of display may be restricted from +131.00
°
F / +55
°
C)
recommended for permanent operation (ac-
cording to
IEC 60255–6)
-5
°
C to +55
°
C / +23
°
F to +131
°
F
Limit temperatures for storage
–25
°
C to +55
°
C / –13
°
F to +131
°
F
Limit temperatures during transport
–25
°
C to +70
°
C / –13
°
F to +158
°
F
Storage 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)
-20
°
C to +70
°
C / –4
°
F to +158
°
F
Limit temperatures under maximum load
(max. cont. admissible input and output
values)
-5
°
C to +55
°
C / +23
°
F to +131
°
F
admissible humidity
annual average
≤
75 % relative humidity;
on 56 days of the year up to 93% relative humid-
ity. CONDENSATION MUST BE AVOIDED IN
OPERATION
Siemens recommends that all devices be installed so that they are not exposed to direct sun-
light nor subject to large fluctuations in temperature that may cause condensation to occur.
The protection device is designed for installation in normal relay rooms and plants, so that elec-
tromagnetic compatibility (EMC) is ensured if installation is done properly.
In addition the following is recommended:
• Contacts and relays operating within the same cabinet or on the same relay board with
digital protection equipment, should be in principle provided with suitable fuses.
• For substations with operating voltages of 100 kV and above, all external cables should be
shielded with a conductive shield grounded at both ends. Normally in medium voltage
systems no special procedures are necessary.
• Do not withdraw or insert individual modules/boards while the protective device is ener-
gized. In withdrawn condition, some components are electrostatically endangered; during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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Содержание Siprotec 7UM611
Страница 16: ...Contents 16 7UM61 Manual C53000 G1176 C127 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 232: ...2 Functions 232 7UM61 Manual C53000 G1176 C127 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 292: ...3 Mounting and Commissioning 292 7UM61 Manual C53000 G1176 C127 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 410: ...A Appendix 410 7UM61 Manual C53000 G1176 C127 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 412: ...Literature 412 7UM61 Manual C53000 G1176 C127 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...