BESTSELLER! Reaffirmed in 2002! Fully details the requirements necessary to ensure adequate isolation of cathodically protected pipelines, especially those with high-quality dielectric coatings. The standard was developed as a supplement to RP0169, RP0675, and RP0177. It includes sections on the need for electrical isolation, methods of electrical isolation, comparison of devices available for pipeline isolation, and equipment specification and installation, as well as field testing and maintenance.