Type MC cable shall not be used where exposed to ___ conditions.

Type MC (Metal Clad) cable is designed for protection in various environments but has limitations regarding exposure to harsh conditions. It is specifically not suitable for use in environments that are subject to destructive corrosive conditions. Such environments can include areas with high levels of moisture, chemicals, or other corrosive substances that can degrade the integrity of the cable's metal components over time, potentially leading to failure or safety hazards.

Using Type MC cable in corrosive environments could result in significant deterioration of its protective sheath, leading to exposure of the conductors and increasing the risk of electrical shock or short circuits. Therefore, it is critical to ensure that Type MC cable is installed in locations where it will not encounter these conditions to maintain its reliability and safety.

While Type MC can appropriately handle moisture and extreme temperatures when installed correctly, its vulnerability to corrosion makes it unsuitable for more aggressive environmental factors. This understanding is essential for ensuring compliance with installation standards and promoting safety in electrical installations.