According to E-11.8.1, what type of load calculations are primarily done?

The correct choice relates specifically to the context of the load calculations specified in standard E-11.8.1, which primarily address direct current (DC) loads. The focus on DC is important because it involves specific considerations regarding the behavior and characteristics of electrical systems that operate on direct current, such as their efficiency, thermal effects, and safety standards.

In the context of maritime standards set by ABYC, DC load calculations are crucial for ensuring that systems can handle the typical demands of onboard equipment without risking overload or failure. This includes considerations for wire sizing, fuses, circuit breakers, and the overall design of electrical systems on a vessel. While AC systems have their own sets of calculations and standards, E-11.8.1 explicitly emphasizes DC loads due to the unique needs and challenges presented by such systems in marine applications.

Understanding this focus helps ensure compliance with safety standards and effective operation of electrical systems on vessels.