All splices must be covered with an insulation equivalent to that of the conductors or with an identified insulating device. What else must be covered?

The requirement that all splices must be covered with insulation equivalent to that of the conductors or with an identified insulating device is fundamental to ensuring safety and reliability in electrical systems. In addition to splices, it is necessary to cover joints and connections as well. This is because any exposed conductive material can pose a risk of electrical shock or short circuits. By providing insulation over all splices, joints, and connections, you help ensure that all parts of the electrical system are adequately protected from environmental factors, accidental contact, and degradation over time. This holistic approach to insulation coverage is vital for maintaining the integrity and safety of electrical installations, which is why the correct answer includes all of these components.