S9407-AB-HBK-010 Datasheet, PDF (154/276 Pages) Glenair, Inc. – HANDBOOK OF SHIPBOARD ELECTROMAGNETIC SHIELDING PRACTICES

S9407-AB-HBK-010, Rev. 2
Section 7
SHIELDING ENCLOSURES, BONDING AND GROUNDING
TABLE OF CONTENTS
Paragraph
Page
7.1
7.2
7.3
7.3.1
7.3.2
7.3.2.1
7.3.2.2
7.3.3
7.3.4
7.3.5
7.3.5.1
7.3.5.2
7.3.6
7.3.6.1
7.4
7.5
7.6
7.6.1
7.6.2
7.6.3
7.6.4
7.6.5
7.7
7.8
INTRODUCTION ........................................................................................................
SCOPE .......................................................................................................................
SHIELDING ENCLOSURES.......................................................................................
Magnetic Saturation of Materials ............................................................................
Shielding Effectiveness of Materials.......................................................................
Example Demonstrating Shielding Principles as Applied
to Enclosure Requirements ....................................................................................
Materials for Enclosures .........................................................................................
Low-Carbon Steel Enclosures ................................................................................
Mumetal Enclosures ...............................................................................................
Annealing of Mumetal Enclosures ..........................................................................
Preparation for Heat-Treatment of Mumetal...........................................................
Instructions for Heat-Treatment of Mumetal...........................................................
Finish ......................................................................................................................
Finish at Enclosure-Cover Interface .......................................................................
RECOMMENDED WIRING PRACTICES FOR USE IN
SHIELDING ENCLOSURES.......................................................................................
METHOD FOR PLUGGING HOLE IN STEEL ENCLOSURE ....................................
TERMINATIONS AT HULL FITTINGS .......................................................................
90-Degree Capped Elbow Termination ..................................................................
Two-Branch Assembly Termination .......................................................................
Three-Branch Assembly Termination.....................................................................
Tailpiece for Hull-Fitting Termination......................................................................
MX-7637/U Stuffing Tube Termination Adapter .....................................................
REQUIREMENTS FOR THE USE OF ALUMINUM OR STEEL
CONNECTORS AND ACCESSORIES.......................................................................
BONDING AND GROUNDING REQUIREMENTS .....................................................
7-1
7-1
7-2
7-2
7-2
7-5
7-5
7-6
7-6
7-6
7-6
7-15
7-16
7-16
7-16
7-20
7-20
7-20
7-20
7-20
7-20
7-20
7-27
7-27
Figure
LIST OF ILLUSTRATIONS
Page
7-1
Skin Depth Versus Frequency .................................................................................... 7-4
7-2
Terminal Box for Shielded Applications (Sheet 1 of 8) ............................................... 7-7
7-2
Terminal Box for Shielded Applications (Sheet 2 of 8) ............................................... 7-8
7-2
Terminal Box for Shielded Applications (Sheet 3 of 8) ............................................... 7-9
7-2
Terminal Box for Shielded Applications (Sheet 4 of 8) ............................................... 7-10
7-2
Terminal Box for Shielded Applications (Sheet 5 of 8) ............................................... 7-11
7-2
Terminal Box for Shielded Applications (Sheet 6 of 8) ............................................... 7-12
7-2
Terminal Box for Shielded Applications (Sheet 7 of 8) ............................................... 7-13
7-2
Terminal Box for Shielded Applications (Sheet 8 of 8) ............................................... 7-14
7-3
Wiring Practice for Minimizing Pickup Loop Areas
Inside Shielding Enclosure.......................................................................................... 7-17
CHANGE 1 of Revision 2
7-i