Holiday Detection of Fusion-Bonded Epoxy External Pipeline Coatings of 250 to 760 ìm (10 to 30 mil)

Published by	Publication Date	Number of Pages
NACE	08/07/2007	7

Category: NACE

Description

NACE SP0490 – Holiday Detection of Fusion-Bonded Epoxy External Pipeline Coatings of 250 to 760 ìm (10 to 30 mil)

This standard practice presents techniques in the operation of holiday detector equipment currently used on fusion-bonded epoxy pipeline coatings following shop application of the coating and prior to on-site installation of the coated pipeline. Also presented is a table detailing recommended voltages for various coating thicknesses, as well as guidance for testing voltages, grounding, condition of coating surfaces, and care of equipment.