4815 Eleniak Rd NW Edmonton, AB T6B 2N1

(780) 461-4799


External Corrosion


Cathodic Protection System Surveys

A cathodic protection survey involves an inspection of the cathodic protection system and an evaluation of soil-side-protection levels applied to the steel structures electrically coupled to the cathodic protection system. 


Survey results, and completed and outstanding upgrades are discussed in a technical report that follows the field service.

D.C. current devices (rectifiers, ground bed, test points, current control devices) are visually inspected and adjusted as required.

The effectiveness of dielectric insulated kits at all known foreign tie-ins are inspected. Defective kits are identified and flagged.

Cathodic Protection System Design

ASM Corrosion Control Ltd. designs cathodic protection corrosion control systems according to individual client requirements and in accordance with provincial and Energy Utility Board guidelines

Cathodic protection systems are designed to have a life of 10+ years and to accommodate future structure expansion by 30%. Additional requirements may be dictated by the client.

Cathodic protection systems can be designed and implemented to protect most types of metallic structures, in a soil or liquid environment


 Cathodic Protection System Inspections

An inspection of the cathodic protection system is performed by our firm within six months of the Annual survey performance. We ensure that the cathodic protection system are operating within design parameters; make adjustments if required; and we verify that upgrades presented in past correspondence that required attention have been addressed.

  • The external cathodic protection system maintenance inspection procedure described below is scheduled according to client requirements.

  • Rectifiers, ground-beds, test stations, current control devices inspected and adjusted on a regular basis

  • Structure-to-soil potential data (voltage) is obtained, as an indicator of protection, for selected structures. (Sampling)

  • A maintenance report is prepared and presented to the client

Learn More

download in-house rectifier form