What type of work is generally conducted under “secondary” electrical systems?

The work conducted under “secondary” electrical systems primarily involves the distribution of electricity to end-use customers. Secondary systems are the final stage in the electrical distribution network, where electricity is transformed and distributed at lower voltages suitable for residential, commercial, or industrial use. This stage follows the primary distribution phase, which typically handles higher voltage levels intended for longer-distance transmission.

In this context, secondary systems include the infrastructure such as transformers, service drops, and individual service connections that facilitate the delivery of electricity to buildings or facilities. This distribution ensures that consumers receive the correct voltage and current required for their specific applications, whether it be for lighting, heating, or operating appliances.

Understanding the role of secondary systems is crucial for linemen as it deals directly with the safety and reliability of power supplied to the end-users, highlighting the important responsibilities they have in maintaining and repairing these systems.