If plastic conduit is not used, what could be a suitable alternative for housing branch circuits?

When considering suitable alternatives for housing branch circuits in the absence of plastic conduit, using Electrical Metallic Tubing (EMT) is a common and effective choice. EMT is a thin-walled conduit made of galvanized steel or aluminum, which provides excellent protection for electrical wiring while also being lightweight and easy to handle.

EMT is often preferred in many applications due to its versatility and ability to be installed both indoors and outdoors, particularly in industrial and commercial settings. It offers the added benefits of a sturdy physical barrier against mechanical damage, as well as resilience against fire and extreme environmental conditions.

In contrast, alternatives such as Intermediate Metal Conduit (IMC) provide a sturdier option but may be heavier and more costly, while Flexible Metal Conduit (EMC) is typically used in locations where flexibility is necessary, such as around equipment. Each alternative has its place based on specific project requirements, but EMT remains a popular and practical choice for general circuit housing.