Does Article 250 include provisions that permit guards, isolation, or insulation as alternatives to grounding requirements?

Article 250 of the National Electrical Code (NEC) addresses the grounding and bonding requirements for electrical systems to ensure safety and reduce the risk of electric shock or fire hazards. The correct answer highlights that there are indeed provisions within this article that allow for guards, isolation, or insulation as alternatives to traditional grounding methods.

In specific scenarios, these alternatives serve as effective means of reducing potential hazards without direct grounding. For example, certain installations may be designed so that live parts are adequately separated from accessible areas or have insulation to prevent accidental contact. These provisions are particularly beneficial in situations where grounding may not be feasible or where the safety of the installation can still be sufficiently ensured through these alternate methods.

By allowing for flexibility in how grounding can be achieved, Article 250 accommodates various types of equipment and system designs, ensuring that safety can still be upheld in diverse applications. This makes it essential for electrical professionals to be familiar with these provisions to utilize them properly in design and installation.