How often shall ENT be secured according to the specifications?

The correct frequency for securing Electrical Nonmetallic Tubing (ENT) is every three feet. This specification ensures that the tubing is adequately supported and secured, preventing sagging and potential damage. Proper securing of ENT is essential for maintaining the integrity of the electrical installation and for ensuring safety. By adhering to the three-foot requirement, electricians can reduce the risk of physical stress on the tubing, which can lead to wear and tear or electrical malfunctions. This practice also complies with electrical code requirements that govern the installation of raceways and conduits, ensuring that installations are safe and reliable over time.