The AWG size must be marked on the surface of nonmetallic sheathed cable at intervals not to exceed ____________.

The AWG size on nonmetallic sheathed cable must be marked on the surface at intervals not to exceed 24 inches. This marking requirement is established to ensure that installers and inspectors can easily identify the gauge of the conductors within the cable without needing to strip or damage the sheathing.

Regular markings at these intervals enhance safety and compliance with electrical codes, allowing for proper evaluation of the cable’s capacity to handle specific electrical loads. This periodic marking helps to prevent errors in installation and supports maintenance personnel in assessing the condition and suitability of the wiring for future modifications or inspections.

In practice, adhering to this marking standard aids in maintaining the integrity and safety of electrical systems, providing clear identification of the cable type and its capabilities.