After finishing this lesson, you will be able to identify the fundamentals of heat-tracing and the methods used in its practice. You will also be able to describe the types of electrical heat-tracing and their internal and external maintenance concerns. • Describe the principles and purpose of heat-tracing systems • Identify common heat-tracing methods • Compare prominent heat-tracing methods • Identify types of electrical heat-trace cabling and their characteristics • Describe safety and temperature control • Describe electrical heat-trace maintenance methods for exterior faults • Describe electrical heat-trace maintenance methods for interior faults