In which application is red brass rigid metal conduit permitted?

Red brass rigid metal conduit is specifically permitted in direct burial applications due to its corrosion-resistant properties, which make it suitable for underground installations. This type of conduit can withstand the harsh conditions that may occur when buried, including moisture and soil acidity, while ensuring that the electrical conductors are effectively protected.

Using red brass rigid metal conduit in direct burial applications also complies with various electrical codes and standards, making it a reliable choice for ensuring safety and performance in grounding and bonding electrical systems. While it might also be recognized in other applications, the unique characteristics of red brass make it particularly advantageous for direct burial, where it must endure environmental stresses without compromising structural integrity.