In the 2014 National Electrical Code, what do permissive rules describe?

Permissive rules in the National Electrical Code (NEC) indicate actions that are allowed but not mandatory. This means that while a specific practice is permissible and may be used in installations, it is not a requirement that must be followed. This distinction gives electricians and contractors the flexibility to choose from multiple options for compliance with safety standards, as long as they adhere to the mandatory requirements outlined in other parts of the code.

The significance of permissive rules lies in their ability to accommodate various methods and technologies that may suit specific circumstances or preferences, promoting innovation in electrical installations while still prioritizing safety. This provides professionals in the industry with guidance on acceptable practices without imposing a one-size-fits-all approach.