Marine engineering safety requirements
The safety requirements for systems and equipment that move and control vessels, and make vessels usable for crew, passengers and cargo.
Introduction
Marine engineering involves the design, construction, installation, and operation of systems and equipment that helps to move and control vessels. It also involves systems that make the vessels usable for crew, passengers and cargo.
Certain obligations and safety requirements govern the engineering of marine vehicles, and this guide explains basic marine engineering considerations for electrical equipment - eg switchboards and computerised equipment - and machinery installations. It also covers guidance on boilers and emergency equipment.
Engineering considerations for electrical equipment and installations
The Maritime and Coastguard Agency (MCA) has issued guidance on the considerations to be taken into account when designing, constructing or installing electrical equipment in a vessel. .
Electrical equipment on vessels must comply with relevant British Standards Institution regulations. .
Emergency sources of electrical power
Individuals responsible for vessels must ensure that emergency electrical power works correctly on those vessels. Download MGN 52 (M+F) Testing of emergency sources of electrical power.
Maintenance considerations
When designing, installing or constructing electrical equipment, consideration must be given to how the equipment will be maintained. .
Engineering considerations for machinery and watertight doors
It is important that machinery is designed, installed and maintained correctly, to prevent accidents and failure of the installations. .
Machinery maintenance
Adequate safety provision must be made for the maintenance or inspection of any equipment and technical systems which could cause hazardous situations if they suffer an operational failure. Download MGN 248 (M) Safety Preparations Prior to Machinery Maintenance.
Engineering considerations for boilers
It is essential that safety requirements for boilers are followed by marine engineers. Failure to comply with requirements could lead to potentially fatal incidents. .
Maintaining boilers
It is important that boilers are also serviceable. Oil fired, exhaust gas or steam heated type boilers need special attention as they contribute to corrosion fatigue, development of cracks leading to boiler drum leakage and possible rupture. .
Propulsion engines and engines used in an emergency
There are specific considerations and best practice for various types of engine. .
Engine control systems
Systems essential to engine operation should be designed and built with easily operated isolating valves. .
Emergency engines
The MCA has issued guidance on requirements applicable to motorised lifeboats, emergency generators and emergency fire pumps. They should be designed to be put into service quickly in the event of an emergency and must be able to be operated under a wide variety of weather conditions. .
Further information
Download MGN 52 (M+F) Testing of emergency sources of electrical power
Download MGN 248 (M) Safety Preparations Prior to Machinery Maintenance
Download MSN 1405 (M) auxiliary boilers on board UK registered ships
Download MSN 1334 Multi-engined propulsion machinery installations
Download MGN 34 (M+F) Lifeboat engines and other compression ignition engines used in an emergency