S9407-AB-HBK-010 Datasheet, PDF (132/276 Pages) Glenair, Inc. – HANDBOOK OF SHIPBOARD ELECTROMAGNETIC SHIELDING PRACTICES

S9407-AB-HBK-010, Rev. 2
6.8.2.1 Example for Procedure 2
A 400-Hz power cable, type THOF-150, is routed with a radio receiver cable type RG-14A/U.
The radio receiver cable will carry signals in the passband of 100 kHz to 30 MHz.
PROCEDURE
2
STEP NO.
RESULTS AND
CALCULATIONS
1
R2-5 (radiator
2
S3 (susceptor)
3
2 inches (spacing w/o
shielding)
4
0 inches (available spacing)
5
S(dB) = 136 dB
NOTES
Table 6-1 and figure 6-1 (sheet 1)
Table 6-1 and figure 6-4 (sheet 1) Cable
designator is S3.
Figure 6-6. Intersection of coordinates
R2-5 and S3.
Step 4 is less than required spacing in
step 3, therefore shielding of susceptor is
required.
Figure 6-7. An S(dB) of 136 dB with
flexible conduit has been provided at 100
kHz. This exceeds the 20 dB minimum
value. Zero inches of spacing is
permissible.
6-19