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Published Date

February 2014

Also available in other formats:

Practical Marine Electrical Knowledge, 3rd Edition

(Excludes any applicable taxes)

Written for marine and electrical engineers, this book provides up-to-date information on ships’ electrical systems to support the knowledge requirements of STCW at the management and operational levels and to improve familiarity with onboard electrical systems.

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Clearly written and extensively illustrated, this publication provides a comprehensive source of reference for management and operational level marine engineers, electrical engineers and electricians with limited experience of modern electrical applications, and students currently studying marine and electrical engineering.


The book covers the fundamentals, operating principles and safe working practices of most electrical systems and automation found on board, including appliances, their circuits and common troubleshooting practices.


Topics covered include ships’ electrical systems, generators, circuit breakers, motors, starters, ancillary electrical services, electrical safety in hazardous atmospheres, survey requirements, electrical propulsion, high voltage practice and permits to work.

Chapter One - Ships’ Electrical Systems, Safety and Maintenance

Circuit Calculations

Electrical Diagrams

Electrical Safety

Electric Shock

Insulation Resistance

Circuit Testing

Insulation Testing

Continuity Testing


Diode Tests

Current Clampmeters

Live-Line Testers

General Electrical Maintenance

Fault Finding

Chapter Two - Electrical Distribution

Power Distribution System

Insulated and Earthed Neutral Systems

Significance of Earth Faults

Distribution Circuit Breakers


Instrument Transformers

Shore Supply Connection

Circuit Protection

Electric Cables

Chapter Three - Generators and Main Circuit Breakers

AC Generator Operation

Generator Construction and Cooling

Excitation Methods

Automatic Voltage Regulation

Generators in Parallel

Emergency Generators

Generator Protection

Generator Maintenance

Main Switchboard

Main Circuit Breakers

Chapter Four - Motors and Starters

Motor Construction

Enclosures and Ratings

Induction Motor Operation

Control Equipment

Direct on Line (DOL) Starting

Reduced Voltage Starting

Speed Control

Motor Protection

Single Phase Motors


Chapter Five - Ancillary Electrical Services

Ships’ Lighting

Incandescent Lamps

Discharge Lamps

Voltage Effects on Lighting

Navigation and Signal Lights

Emergency Lighting

Maintenance of Lighting Fittings

Refrigeration and Air Conditioning

Galley and Laundry

Cathodic Protection

Battery Supplies

Chapter Six - Special Electrical Practice for Oil, Gas and Chemical Tankers


Tanker Classification

Hazardous Zones

Electrical Ignition of Gas

Apparatus Gas Groups

Temperature Class

Types of Explosion Protection

Exd Flameproof Enclosure

Exi Intrinsic Safety

Exe Increased Safety

Exn Non-Sparking

Exp Pressurised Apparatus

Exm Encapsulation

Exs Special Protection

Certification and Identification

Electrical Testing in Hazardous Areas

Maintenance of Ex-protected Apparatus

Chapter Seven - Electrical Survey Requirements


Classification Societies

Main Electrical Survey Items

Generators and Governors

Circuit Breakers

Switchboards and Fittings


Insulation Resistance

Motors and Starters

Emergency Power and Associated Equipment

Parts of Steering Gear

Navigation Light Indicators

Chapter Eight - Electric Propulsion and High Voltage Practice

Electric Propulsion Scheme

Power Supply Network

Review of Motor Operation

Controlled Rectification and Inversion

Converter Types

Propulsion System Operation


Propulsion Auxiliaries and Protection

High Voltage on Ships

High Voltage Safety

High Voltage Equipment Testing

Dennis Hall had long experience with the marine industry, with initial training in shipbuilding followed by practical experience in the Merchant Navy as an Electrical Officer. This was followed by design and inspection work for large power industrial electrical systems around the world. Further experience and knowledge was acquired in the Royal Navy where he was introduced to the requirements and effective delivery methods for the training of engineering personnel. At South Tyneside College, as a lecturer, manager and Head of Electrical Power Systems, he examined many ship types and visited many marine colleges in Europe, USA and Japan.

Dennis was driven to meet the training and education needs of the marine industry and this book has, for many years, been the mainstay. The technical editors of Witherby Publishing Group have been careful to ensure that the straightforward and informative style of Dennis’ book has been maintained, while bringing in additional material that updates and expands the subject matter.

Title: Practical Marine Electrical Knowledge, 3rd Edition
Edition: Third
Number of Pages: 192
Product Code: WS1424K
ISBN: ISBN 13: 978-1-85609-623-2 (9781856096232), ISBN 10: 1-85609-623-8 (1856096238)
Published Date: February 2014
Binding Format: Hardback
Book Height: 300 mm
Book Width: 215 mm
Book Spine: 16 mm
Weight: 1.10 kg

Customer Reviews

Highly Recommended Review by FC
With updates on current practices on board, eg high voltage installation and with colour graphics, this new edition is highly recommended for those who want to have quick reference on what's new. (Posted on 23/03/2015)
Great Reference Book Review by NM 30 June 2014
Great reference book for experienced both marine electrical engineers and apprentices. Clear explanations are given with worked examples. Common faults and troubleshooting practices are discussed. (Posted on 20/03/2015)

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