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参数资料
| 型号： | 0249100000 |
| 厂商： | WEIDMULLER |
| 元件分类： | 接线盒 |
| 英文描述： | 16 A, MODULAR TERMINAL BLOCK, 1 ROW, 1 DECK |
| 文件页数： | 6/10页 |
| 文件大小： | 1194K |
| 代理商： | 0249100000 |
SAK-Series
for
special
applications
D
D.5
Modular terminals for nuclear power stations
High standards are set for products used
in containment areas of nuclear power
generating stations. Years of radioactive
radiation must not lead to failure. Signals
must be transmitted faultlessly in the
case of accidents, for example, steam
escaping after a coolant pipe burst.
In particular, steam enveloping the
terminal blocks could lead to problems.
Unsuitable terminal blocks cause leakage
currents, which lead to signal distortions.
That is why only products which have
been approved in accordance with IEEE
Class 1 E are allowed to be installed in
containment areas.
The special feature of the tests carried
out using Weidmüller‘s terminal blocks
is that not only was the insulation resi-
stance measured following an accident
simulation, but that the leakage current
was recorded during the LOCA test
(Loss of Coolant Accident).
Weidmüller also offers for these appli-
cations a choice of products made from
the special epoxy resin material EP with
inorganic filler, which meets the demands
for high standards.
The comprehensive test results produ-
ced by the Wyle Laboratories enable the
regulatory body to judge Weidmüller‘s
products for containment areas Class 1 E
(accident simulation test profile 4) and
for general use (accident simulation test
profile 1) in nuclear generating stations.
Basis:
IEEE 323 – 1983
“Qualifying class 1 E Equipment
for Nuclear Power Generating
Stations”
IEE 344 – 1987
“Recommended Practices for
Seismic Qualification of Class 1
E Equipment for Nuclear Power
Generating Stations”
Agency: Wyle Laboratories, Huntsville,
Alabama, USA
Period: 1992 – 1993
The basis for the qualification statement
are the standards laid down in the IEEE
that comprise the following product cycles:
1. Functional Test/Initial Values
Insulationresistance
Volumeresistances
2.Radioactive Aging
Totaldose:
220Mrad
Doserate:
1Mrad/h
Volumeresistanceaftercontamination
3. Thermal aging equivelant to
40 years of operation at ambient
temperature
32°C=90°Foutsideof
containment area
65°C=150°Fwithinthe
containment area
Acceleratedaging
Insulation resistance after contamination
4. Earthquake Simulation
5OBE,1SSEtestin3axses
Monitoringoftheelectricalfunctions
5. Accident Simulation
Insideandoutsideofthe
containment area
Monitoringofleakagecurrentsfor
different applications during the
accident simulation
Insulation resistance after contamination
6. Functional Test/Final Values
Volumeresistance
Opticalinspection
As well as the special terminal blocks for
the containment areas, which correspond
to the standards according to Class 1
E, Weidmüller has subjected a range of
standard terminal blocks to intensive tests
in accordance with test profile 1. They all
fully meet the demands set for terminal
blocks for outside of restricted areas.
Accident Simulation Test Profile 1
Typical PWR Outside Containment
Simulation
Duringthe4-hourtest,saturatedsteam
is fed to the temperature control. This
simulation is carried out at atmospheric
pressure.
Accident Simulation Test Profile 4
Typical PWR Inside Containment
Simulation
Duringthe29-hourtest,saturatedsteam
is fed to the temperature control. In the
period from the 3rd to 24th hour, the
test circuit that is coated with a chemi-
cal spray is alternatively coated with a
deminaralizing spray. This simulation is
carried out at an increased pressure of
amaximumof4500hPa(4.5bar).
°C
93
66
h
4
3
2
1
Spray
hPa
3600
2400
h
29
24
11
3
4500
°C
180
150
140
h
Accident Simulation Test Profile 1
(Outside Containment Simulation)
Accident Simulation Test Profile 4
(Inside Containment Simulation)
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PDF描述 |
|---|---|
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相关代理商/技术参数 |
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| 024930 | 制造商:Q-MAX 功能描述:CUTTER 7/16" |
| 024931 | 制造商:Q-MAX 功能描述:CUTTER 1/2" |
| 024933 | 制造商:Q-MAX 功能描述:CUTTER 5/8" 制造商:Q-MAX 功能描述:CUTTER, 5/8" |
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