NACE SP21433-2019/IEEE Std 2445:2018 PDF Download

NACE SP21433-2019/IEEE Std 2445:2018 is a joint standard developed by NACE International and the Institute of Electrical and Electronics Engineers (IEEE). It addresses the need for a systematic approach to inspecting and assessing below-grade and groundline corrosion on weathering steel structures used in electrical transmission and distribution systems.

The standard is specifically designed to help electric utilities identify structures that are at a high risk for corrosion in below-grade sections, which are often inaccessible for visual inspection. It provides a procedure and requirements for excavating and inspecting selected structures, categorizing their condition based on corrosion degradation, and prioritizing structures that require further inspection.

The primary audience for this standard includes electric utility personnel, contractors, inspectors, and those interested in understanding the impact of corrosion on below-grade sections of transmission, distribution, and substation steel structures. The standard aims to assist in determining which structures require additional inspection and provide guidance on what steps to take next.

It is important to note that this standard is limited to the inspection and assessment of weathering steel transmission towers, poles, substation structures, and similar structures.