What does Article 285 cover?

Article 285 specifically addresses Surge-Protective Devices (SPDs) for systems operating at 1000 volts or less. This article outlines the requirements and regulations ensuring the proper installation and performance of these devices to protect electrical equipment from transient voltages caused by lightning strikes or other electrical disturbances. The focus on SPDs is crucial for safeguarding sensitive electronic equipment which can be easily damaged by such surges, making adherence to the guidelines in Article 285 vital for maintaining safety and reliability in electrical systems. Understanding the application and requirements outlined in this article is essential for supervisors and electricians working with electrical systems at or below 1000 volts, emphasizing the role of SPDs in a well-designed electrical installation.