How many means of securement and support are required for Type NM cable installation?

In Type NM (Non-Metallic) cable installation, the National Electrical Code (NEC) specifies that there must be a certain number of securement and support points to ensure the cable is properly anchored and protected throughout its installation. For NM cable, the code mandates that it must be secured within a maximum distance of 4.5 feet (or 54 inches) from the cable's entry point into a box, and that it must also be secured at intervals no greater than 12 feet (or 1 foot).

Combining these requirements, the total number of securement points needed is indicated as 12. This ensures that the cable is adequately supported and minimizes the risk of damage or strain on the installation, promoting safety and compliance with electrical standards. Therefore, the requirement of 12 securements for NM cable highlights the importance of adhering to code provisions for safe electrical installations.