Which statement is true regarding the installation of insulated conductors rated up to 2,000 volts?

The statement regarding insulated conductors rated up to 2,000 volts being determined by tables or engineering supervision is accurate and reflects standard practices in electrical installations. This approach is important because it allows for the proper selection and evaluation of conductors based on their application, the environment, and code requirements.

Tables extensively document the allowable ampacities, insulation types, and installation methods based on various factors, such as conductor size and installation conditions. Engineering supervision complements this by ensuring that conductor choices meet specific project requirements and comply with relevant electrical codes. This dual approach provides flexibility and support for safety and performance standards in electrical installations.

Using tables allows for quick reference and standardized practices, while engineering oversight ensures that unique situations are addressed adequately, promoting safe and effective electrical systems.