S9407-AB-HBK-010 Datasheet, PDF (194/276 Pages) Glenair, Inc. – HANDBOOK OF SHIPBOARD ELECTROMAGNETIC SHIELDING PRACTICES

S9407-AB-HBK-010, Rev. 2
APPENDIX B
GUIDELINES FOR CABLE SPACING AND SHIELDING REQUIREMENTS AT AN INTERFACE
B-1 INTRODUCTION
In situations where more than one set of cable spacing and shielding requirements are
implemented on the same platform, a compatible set of joint requirements must be developed and applied
at the common interface. This section provides two examples of interface requirements that have been
developed and implemented on submarine platforms.
B-2 SCOPE
Spacing and shielding requirements provided in this section apply only at the following designated
interfaces:
a. Cable installations in accordance with section 5 of NAVSEA 0967-LP-283-5010 and section 6
of either NAVSEA 0967-LP-283-5010 or S9407-AB-HBK-010 (including Revision 1).
b. The Command and Control System (CCS) installed in accordance with section 6 of either
NAVSEA 0967-LP-283-5010 or S9407-AB-HBK-010 (including Revision 1), and the Strategic Weapons
System (SWS) installed in accordance with SWS Coordinated Drawing 3191445.
The procedure employed to develop these requirements illustrates a general approach that can be used
to establish adequate spacing and shielding at a given interface.
B-3 GENERAL PROCEDURE FOR DEVELOPING INTERFACE CABLE SPACING AND SHIELDING
REQUIREMENTS
In applying the cable spacing and shielding requirements given in section 6 at an interface, all the
requirements imposed on both systems must be observed. This includes bonding and grounding
practices as well as cable spacing requirements. Paragraphs B-3.1 through B-3.4 describe a general
procedure that can be used to develop cable spacing and shielding requirements at an interface.
B-3.1 Develop Functional Equivalence
Developing a functional equivalence between section 6 cable categories and those of the
interfacing system requires detailed information regarding the latter. Much of this can be obtained from
technical manuals, equipment design specifications, and installation requirements.
B-3.2 Recategorize Interfacing System Cables
Using equivalent cable category information, recategorize the interfacing system cables in terms of
the section 6 cable designators. If all cable designator information is not available, the category may be
assigned and the group numbers determined later.
B-1