Which article would you refer to for guidelines on outside branch circuits?

To understand the guidelines for outside branch circuits, you would refer to Article 225 of the National Electrical Code (NEC). This article specifically addresses the requirements for "Outside Branch Circuits and Feeders," which encompass circuits that supply electrical power to installations located outdoors.

Article 225 outlines essential provisions for the installation of these circuits, covering aspects such as location, clearance, protection against physical damage, and the types of materials suitable for outdoor environments. It also addresses the requirements for disconnecting means and the appropriate installation methods to ensure safety and reliability in outdoor settings.

While Articles 200, 210, and 230 address other important aspects of electrical installations, they do not focus specifically on outside branch circuits. Article 200 pertains to general requirements for conductors and their installation, Article 210 deals with branch circuits for general use, and Article 230 outlines the requirements for services supplying electrical power to buildings or structures. Therefore, Article 225 is the most relevant resource for guidelines related to outside branch circuits.