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Bộ thiết bị bảo vệ cho tín hiệu Shinkansen

 

Unit type protective device for Shinkansen signals UP-3C type, UP-43 type, UP-3K type

拡大

 

This is a unit type protective device (arrester) that protects signal cables and signal equipment from irregular voltage and current that may enter Shinkansen track circuitry.

【Dimensions】 UP-3C type:W250×D170×H120
UP-43 type:W250×D170×H120
UP-3K type:W250×D170×H120

 
 
 
Main performance characteristics
 
Item Performance characteristics
SE (transmission) RE (transmission)
Frequency characteristics 0.5 to 1.5kHz
Operating level (dBm) 3C type 40×2 wave 34
3K type 40×2 wave 34
43 type 40×2 wave + 43×1 wave 34×2 wave + 40×1 wave

Impedance ratio
primary side (T side): secondary side (L side)

18Ω:350Ω
28Ω:350Ω
38Ω:350Ω
100Ω:350Ω
Impedance deviation 350±7%
Operating attentuation 1dB or less
Cross modulation product 30dB or more -
Coil Capacitance 300pF or less
Withstand voltage
AC 1 min.
Between T1, T2 and L1, L2 350Ω±7% -
Between C1, C2, C3, C’ and L, L’ 3C type:3kV
43 type, 3K type:5kV
-
Between C1, C’ and L, L’ - 3C type:3kV
43 type, 3K type:5kV

Between T1, T2 and

(base mount metal plate)

- -

Between L1, L2 and

(base mount metal plate)

- -

Between each terminal and

(base mount metal plate)

3C type:3kV
43 type, 3K type:5kV
Insulation resistance
DC500V
Between T1, T2 and L1, L2 - -
Between C1, C2, C3, C’ and L, L’ 50MΩ or more -
Between C1, C’ and L, L’ - 50MΩ or more

Between each terminal and

(base mount metal plate)

50MΩ or more
Line operating voltage
AC wave peak (DC value)
T side:-
L side:490±70V
Current withstand capacity AC T side:-
L side:20A・0.1s・10 times
Over-current withstand capacity AC - -
Line operating voltage after testing
AC wave peak (DC value)
T side:-
L side:490±115V
Vibration resistance JIS E 3014 “Railroad Signal Safety Components - Vibration Testing Method” Type 2
Weight 4.6kg