Which trade is responsible for the installation and maintenance of electrical components on a ship?

The role of a Maintenance Electrician is specifically focused on the installation, inspection, and repair of electrical systems and components aboard a ship. This trade includes working with wiring, lighting, navigation systems, and various electrical equipment crucial for the ship's operation. Maintenance Electricians ensure that all electrical systems are functioning safely and efficiently, adhering to maritime safety standards and regulations.

In contrast, the roles of the other trades listed do not involve direct responsibility for electrical systems. Welders focus on joining metal parts through welding techniques, molders deal with creating metal castings, and pipefitters specialize in installing and maintaining piping systems for fluids, gases, and other materials. This distinction highlights why the Maintenance Electrician is the appropriate choice for this question.