Article 426 specifically addresses which type of application?

Article 426 of the National Electrical Code (NEC) is specifically dedicated to fixed outdoor electric deicing and snow-melting equipment. This article provides guidelines for the installation, maintenance, and safety requirements associated with equipment designed to prevent ice build-up on surfaces such as walkways, driveways, and roofs. The purpose of these regulations is to ensure that such systems operate efficiently and safely in residential and commercial settings while minimizing the risk of electrical hazards like shock or fire.

Deicing and snow-melting equipment have unique characteristics and operational considerations that differ from other types of electrical installations. For instance, factors like outdoor installation, exposure to moisture, and the potential for icy and snowy conditions must be taken into account when designing and implementing these systems. Thus, Article 426 outlines specific requirements to address these challenges effectively.

The other options refer to different aspects of electrical installations governed by separate articles in the Code, highlighting the unique focus of Article 426 on deicing and snow-melting applications.