Shipboard Electrical Grounding Training

Shipboard Electrical Grounding

The increased use of electrical and electronic equipment aboard Naval ships introduces risk of electromagnetic interference (EMI) problems to ship operation and performance.

As systems are added, they all contribute and could become susceptible to an intense electromagnetic environment (EME). Considering the corrosive salt water environment in which ships must operate and the interaction of a ship’s electrically conductive metallic superstructure, topside hardware, antenna systems, etc., the potential for interoperability problems is significantly increased.

Potential EMI and personnel safety problems related to electronic equipment operating in these environments are magnified because of:

  • The need to establish and maintain a low impedance (Z)
  • Common reference ground for all electrical/electronic equipment
  • The detrimental effects of: Natural and manmade electromagnetic (EM) energy Spurious and intentional EM energy Off-ship and own-ship, EM energy

 

After Attending, You Will Learn:

  • How to ground the ships’ electrical service
  • To establish the ships Common Ground Point
  • To evaluate and assess the grounding & bonding system
  • Procedures for the connection between ship and shore safety grounds.
  • About protection against shock hazards
  • The fundamental characteristics of lightning and how to protect against it
  • How power line disturbances can impact communications
  • How to control corrosion through grounding
  • The role of DOD specifications, commercial and Military/Navy standards
  • The grounding of the engine block
  • The concepts of Grounded and Ungrounded systems.
  • Guidelines for Grounding in maritime installations
  • Shipboard Bonding ,Grounding & Electromagnetic Compatibility
  • Shipboard Electromagnetic Shielding practices

 

WHO should attend

Grounding And Bonding For Marine Applications Course. This advanced course is designed for those who are required to design, plan, install, maintain and/or supervise contractors who are providing grounding and lightning protection systems for shipboard systems, such as: Naval Engineers, Base Civil Engineers, Electrical Engineers, Project Engineers, Design Engineers, foremen & crew members, electrical workers in the marine industry, electronic technicians, site Engineers or those who are responsible for the engineering, design, construction, installation, inspection, operation, or maintenance of electrical grounding systems in shipboard and marine facilities.

 

Students receive

  • FREE 100-Page Digital Electrical Grounding Handbook (Value $20)
  • $100 Coupon Toward any Future Electricity Forum Event (Restrictions Apply)
  • 1.4 Continuing Education Unit (CEU) Credits
  • FREE Magazine Subscription (Value $25.00)
  • Course Materials in Paper Format

 

 

DAY ONE

 

SESSION 1: ELECTRICAL GROUNDING – SCOPE

  • Definitions
  • Applications
  • Grounding methods
  • Ground Faults
  • Why Ground Circuits and Systems
  • Grounding Systems

 

SESSION 2: CLASSIFICATION OF VARIOUS GROUNDING STANDARDS. CODES AND RULES

  • FEDERAL SPECIFICATIONS
  • DEPARTMENT OF DEFENSE SPECIFICATIONS
  • DEPARTMENT OF DEFENSE STANDARDS
  • MIL-STD-464 Electromagnetic Environmental Effects, Requirements for Systems
  • MIL-STD-2003-5 Electric Plant Installation, Standard Methods for Surface Ship and Submarines
  • MIL-STD-2169 High-Altitude Electromagnetic Pulse (HEMP) Environment
  • NON-GOVERNMENT PUBLICATIONS
  • AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)
  • ANSI/IEEE

 

SESSION 3: ELECTRICAL GROUNDING ELECTRODE SYSTEM

  • Grounding Theory
  • Parameters, Measurements and Calculations
  • Electrical Grounding and Corrosion
  • Installation and Protection
  • Sizing the Grounding Electrode Conductor
  • General requirements for:
  • Shipboard Grounding, Bonding, & other techniques for EMC, EMP & Safety
  • Ground potential and ships ground plane
  • Ground potential for metallic hull ships
  • Ground potential for nonmetallic hull ships
  • Electrical safety
  • Bonding and grounding of composite structures
  • Hull-generated EMI prevention.

 

SESSION 4: CIRCUIT GROUNDING

  • Ships source of electrical power
  • Grounded Conductor
  • Direct-Current Systems
  • Alternating-Current System
  • Rigging Shore Power
  • External source through shore power cables
  • Unrigging Shore Power

 

SESSION 5: EQUIPMENT BONDING & GROUNDING

  • Major Requirements:
  • Identification of the Bonding Conductor
  • Bonding/Grounding and electric Shock
  • Ship’s Bonding installation
  • Hardware for C bonding
  • Bonding straps, Type I,II, III, IV & V
  • Equipment cabinets and hardware items
  • Shock-mounted
  • Bond strap and grounding wire routing
  • Joiner/false/honeycomb bulkhead mounted equipment

 

SESSION 6: EMERGENCY POWER SYSTEMS

  • Main Bonding Jumper
  • Portable generators
  • Vehicle Mounted Generators


 

DAY TWO


 

SESSION 7: OFF-SHORE & SHIP’S GROUNDING SYSTEM

  • System Reference Zero
  • Detection of a Faulty Neutral-Ground
  • System Sizing Wiring to Meet Computer Industry Standards
  • Grounding Line Treatment Devices
  • Transient Overvoltage Protector Grounding
  • Gas Tubes Metal Oxide Varistors Silicon Avalanche Diodes
  • Ship’s Computer Grounding System
  • Ship’s Ground plane(s)/Elements of the ground plane
  • Superstructure, equipment foundations and racks
  • Shielded room(s)

 

SESSION 8: HULL-GENERATED EMI PREVENTION

  • Portable and removable metallic deck hardware
  • Nonmetallic topside material
  • Bond topside metal-to-metal contact junctions
  • Cable and hull penetration EMI control
  • Topside cable installations
  • Shielded cable
  • Unshielded cable

 

SESSION 9: LIGHTNING PROTECTION

  • Electrical Grounding Lightning
  • Characteristics Protection Systems
  • Electrogeometric & Rolling Sphere Concept
  • Ship’s main ground connection point
  • Metal Mast

 

SESSION 10: ELECTRONIC EQUIPMENT GROUNDING

  • Introduction and Definitions
  • Computer and Electronic Equipment Grounding
  • Telecommunication Rooms and Closets
  • Data Processing Equipment
  • Grounding Electronic Security Equipment Grounding
  • RF tuned receiver front-end stages
  • LF-MF receiver(s), but no in-band transmitters

 

SESSION 11: TELECOMMUNICATION SITE GROUNDING

  • Grounding Subsystems
  • Exterior Ground Ring
  • Interior Ground Ring –
  • Halo Ground
  • Low-Frequency Networks
  • High frequency Networks

 

SESSION 12: EMI ON ELECTRONIC CIRCUITS

  • Susceptibility - Immunity
  • Cable Shielding and Grounding
  • Losses by Absorption and reflection
  • Grounding Low- and High-Frequency Shielding
  • Grounding High-frequency Shielding
  • Coaxial Cables
  • Superficial Resistivity
  • Resonance and Skin Effect

 

Review of expectations
Questions and Answers

 

COURSE TIMETABLE

Both days:

Start: 8:00 a.m.
Coffee break: 10:00 a.m.
Lunch: 12:00 noon
Finish: 4:30 p.m.

 

 

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On-Site Training Available

We can present this Shipboard Electrical Grounding Training Course to your electrical engineering and maintenance staff, on your premises, tailored to your specific equipment and requirements. We are ready to help design this program for you. Click on the link below to request a FREE quotation.

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