What is required for outdoor electrical installations in terms of cable protection?

For outdoor electrical installations, the use of water-resistant cable or conduit is essential due to the exposure to environmental factors such as moisture, sunlight, and temperature fluctuations. Water-resistant cables are specifically designed to prevent water ingress, which can lead to short circuits, corrosion, and potential electrical failures. Additionally, conduits provide a protective barrier against physical damage and environmental elements, ensuring that the electrical conductors remain safe and functional over time.

While installing underground cables has its advantages, it is not the only option for outdoor installations, and the requirement for cable protection extends to above-ground installations as well. Standard plastic sheathing may provide some level of protection, but it is not specifically designed for outdoor conditions, particularly in areas that are subject to water exposure. Likewise, regular electrical tape is not suitable for protecting cables from outdoor elements, as it is not designed for long-term exposure to moisture or UV light. Therefore, the choice of water-resistant cable or conduit is crucial for ensuring safety and reliability in outdoor electrical installations.