DEFSTAN 02-617/3(2004) : 2004

TITLE PAGE
SCOPE
FOREWORD
Sponsorship
Conditions of Release
Categories of Defence Standards
Related Documents
Health and Safety
Additional Information
SECTION 1 - PERFORMANCE SPECIFICATION
  1.1 Verification
  1.2 System Validation
SECTION 2 - NATIONAL/INTERNATIONAL REGULATIONS
SECTION 3 - MILITARY STANDARDS/REQUIREMENTS
SECTION 4 - DESIGN REQUIREMENTS/GUIDANCE
  4.1 General System Description
       4.1.1 Introduction
       4.1.2 Magnetic Signature Requirement
       4.1.3 Magnetic Signature Apportionment
  4.2 Magnetic Signature Control
       4.2.1 General
       4.2.2 Contractor's Average Relative Permeability Checks
       4.2.3 Contractor's Magnetic Field Measurements
       4.2.4 Magnetic Land Ranging
       4.2.5 Position and Orientation on the Vessel of
              Equipment Containing Magnetic Sources
       4.2.6 Magnetic Sea Ranging
       4.2.7 Magnetic Signature Tracking
  4.3 Extra Low Frequency Electromagnetic and Underwater
       Electric Potential Fields
  4.4 Design Guide
       4.4.1 Introduction
  4.5 Design Guide - Ferromagnetic Field Source
       4.5.1 General
       4.5.2 Materials having an Electromagnetic Function
       4.5.3 Materials Requiring Mechanical Strength
       4.5.4 Materials where there is no Practicable
              Alternative
  4.6 Design Guide - Eddy Current Field Sources
  4.7 Design Guide - Stray Field Sources
       4.7.1 General
       4.7.2 Detailed Principles
       4.7.3 Stray Field Design Guide for the Arrangement
              of Cables
       4.7.4 Stray Field Design Guide for the Arrangement
              of Batteries
       4.7.5 Stray Field Design Guide for Motor Generators
       4.7.6 Stray Field Design Guide for Induction Clutches
       4.7.7 Stray Field Design Guide for Solenoid and
              Resistors
       4.7.8 Stray Field Design Guide for Switch and
              Contactor Panels
  4.8 Design Guide - Working, Handling, Stowage, Packaging
       and Transport of Materials
       4.8.1 General Principles
       4.8.2 Detailed Principles and Guidelines - Magnetic
              Fields
       4.8.3 Detailed Principles and Guidelines -
              Mechanical Stress
       4.8.4 Detailed Principles and Guidelines - Temperature
  4.9 Detailed Principles and Guidelines - Contamination
  4.10 Design Guides - Compensation Methods
  4.11 Design Requirements for HUNT and SRMH
       4.11.1 Introduction
  4.12 Design Requirement - Ferromagnetic Field Sources
       4.12.1 General
       4.12.2 To Calculate Average Relative Magnetic Permeability
  4.13 Design Requirements - Eddy Current Field Sources
       4.13.1 General
       4.13.2 Sheet Materials
       4.13.3 Frames and Pipes
  4.14 Design Requirements - Stray Field Sources
  4.15 Sources of Guidance
SECTION 5 - CORPORATE KNOWLEDGE AND EXPERIENCE
ANNEX A - RELATED DOCUMENTS
ANNEX B - ABBREVIATIONS AND DEFINITIONS
ANNEX C - PROCUREMENT CHECK LIST
ANNEX D - AVERAGE RELATIVE MAGNETIC PERMEABILITY
  D.1 Introduction
  D.2 Definition
  D.3 Assumptions and Approximations
  D.4 Relationship Between Average Magnetic Permeability,
       Land Range Measurements and Ship's Magnetic Signatures
ANNEX E - AVERAGE RELATIVE MAGNETIC PERMEABILITY
  E.1 General
  E.2 When to Measure Relative Magnetic Permeability
  E.3 Measuring Relative Magnetic Permeability
  E.4 Measuring Relative Magnetic Permeability - Comments
       and Problems
ANNEX F - CALCULATION OF AVERAGE MAGNETIC PERMEABILITY (HUNT)
  F.1 Example 1
  F.2 Example 2
ANNEX G - CALCULATION OF AVERAGE MAGNETIC PERMEABILITY (SRMH)
  G.1 Example 1
  G.2 Example 2
ANNEX H - STRAY FIELD - GUIDE FOR THE ARRANGEMENT OF CABLES
  H.1 Direct Current Power Cables
       H.1.1 Four Conductor Quadded Cables
       H.1.2 Double Conductor Cables
       H.1.3 Single Conductor Cables
  H.2 Alternating Current Power Cables
       H.2.1 Phase Conductors in a Common Core
       H.2.2 Phase Conductors in a Separate Cables
  H.3 Cable Terminal Connections
       H.3.1 Compatibility of Cable Runs and Terminals
       H.3.2 Arrangement of Terminals and Approach by
              Cable Run
       H.3.3 Three Terminal Arrangements
       H.3.4 Connecting Four Single Conductor Cables to
              Three Terminals
       H.3.5 Connecting Eight Single Conductor Cables to
              Three Terminals
       H.3.6 Connecting Six Single Conductor Cables to
              Three Terminals
ANNEX I - STRAY FIELD - GUIDE FOR THE ARRANGEMENT OF BATTERIES
  I.1 Definitions and General Principles
  I.2 Series and Parallel Compensation
  I.3 Positioning of Battery Connecting Bus Bars
  I.4 Positioning of Connecting Bus Bars
  I.5 Preferred Storage Battery Arrangements
  I.6 Battery Arrangement Warning Plates
ANNEX J - STRAY FIELD - GUIDE FOR MOTORS AND GENERATORS
  J.1 Frame Design
       J.1.1 Frame Type
       J.1.2 Frame Material
       J.1.3 Frame Outside Shape
       J.1.4 Current Carrying Leads
  J.2 Poles
       J.2.1 Number of Poles
       J.2.2 Orientation of Field poles
       J.2.3 Magnetic Contact
  J.3 Symmetry and Uniformity
       J.3.1 Air Gaps
       J.3.2 Commutating Poles (Interpoles)
       J.3.3 Number of Turns
       J.3.4 Equalizer Connections
  J.4 Wiring Around the Frame
       J.4.1 Field Coils
       J.4.2 Commutating Coils and Compensating Windings
  J.5 Brush Collector Rings
       J.5.1 Construction
       J.5.2 Arrangement
       J.5.3 Current Take-off Point
       J.5.4 Connections from Brush Collector Rings
       J.5.5 Position of Brush Collector Rings
       J.5.6 Brush Rigging
       J.5.7 Number of Commutator Bars
       J.5.8 Double Armature Machines
ANNEX K - STRAY FIELD - GUIDE FOR INDUCTION CLUTCHES
  K.1 Field Pole Requirements
  K.2 Field Coil Requirements
  K.3 Number of Field Poles
ANNEX L - STRAY FIELD - GUIDE FOR SWITCH AND CONTACTOR PANELS
  L.1 Basic Conductor Arrangement
  L.2 Conductor Bends
       L.2.1 Conductors Lying in Different Planes on Each
              Side of the Bend
       L.2.2 Conductors Lying in the Same Plane on Each
              Side of the Bend
  L.3 Devices in Power Circuits
       L.3.1 Power Circuit Arrangements

Provides guidance for designers and suppliers of Low Magnetic Signature equipment, Mine Countermeasures Vessels (MCMV). It includes specific requirements for the HUNT and Single Role Minehunter (SRMH).