Which article addresses overcurrent protection requirements?

Which article addresses overcurrent protection requirements?

• A. Article 240
• B. Article 210
• C. Article 220
• D. Article 250

Answer: (A)

Article 240 of the National Electrical Code (NEC) specifically addresses overcurrent protection requirements. This article outlines the standards and guidelines necessary to safeguard electrical systems from overcurrent situations, which can arise from both overloads and short circuits. Overcurrent protective devices, such as circuit breakers and fuses, are essential as they interrupt the flow of electricity when it exceeds the rated capacity, thereby protecting conductors and connected equipment from damage. The provisions within Article 240 ensure correct sizing and application of these protective devices, ensuring that electrical installations operate safely and reliably. Compliance with these requirements not only helps in preventing equipment damage and potential fire hazards but also ensures the ongoing efficiency of electrical systems. The other articles mentioned pertain to different aspects of electrical installations: Article 210 focuses on branch circuits, Article 220 deals with branch circuit, feeder, and service load calculations, and Article 250 covers grounding and bonding. Each contributes to a comprehensive understanding of electrical standards but does not specifically address overcurrent protection.

Article 240 of the National Electrical Code (NEC) specifically addresses overcurrent protection requirements. This article outlines the standards and guidelines necessary to safeguard electrical systems from overcurrent situations, which can arise from both overloads and short circuits. Overcurrent protective devices, such as circuit breakers and fuses, are essential as they interrupt the flow of electricity when it exceeds the rated capacity, thereby protecting conductors and connected equipment from damage.

The provisions within Article 240 ensure correct sizing and application of these protective devices, ensuring that electrical installations operate safely and reliably. Compliance with these requirements not only helps in preventing equipment damage and potential fire hazards but also ensures the ongoing efficiency of electrical systems.

The other articles mentioned pertain to different aspects of electrical installations: Article 210 focuses on branch circuits, Article 220 deals with branch circuit, feeder, and service load calculations, and Article 250 covers grounding and bonding. Each contributes to a comprehensive understanding of electrical standards but does not specifically address overcurrent protection.