A close interval survey (CIS) ensures that the cathodic protection system is operating properly as per NACE SP0169 specified standard. Close interval surveys are used in the process of external corrosion direct assessment (ECDA). Close interval surveys are done on underground or submerged pipelines. Consultech’s team of engineers ensure expert and timely execution of close interval survey.
The potential difference (voltage) between the pipeline and the reference electrode (electrolyte) in contact with the material or ground is measured regularly. The data collected during the closely-spaced surveys provide insights into the cathodic protection of the pipeline.
A close interval survey ensures that the cathodic protection system is working and pipelines are properly protected and our client’s structure is safeguarded hence reducing the cost of corrosion.
Regulatory Requirement – State regulations require operators and pipeline managers to check the proper operation of the cathodic protection system.
Close Internal Survey Data importance
- Establish a baseline to evaluate the performance and operation of the underground pipeline cathodic protection system.
- Identify areas of the pipeline that are likely to require adjustment or repair of the Cathodic protection system.
- Test for interference between connectors and chassis openings, or where there are foreign or overhead power lines.
Close IntervalSurvey Methods
- There are several types of short-term measurements that regularly measure the difference between the pipeline and the ground surface.
- Native potential and depolarization measurements provide a baseline for determining the cathodic protection level of the structure.
- You can use potential and intermittent potential studies to determine if corrosion is occurring and the level of corrosion.
Benefits of Using Consultech
- Experience with various kinds of cathodic protection systems spanning over 58 years.
- Cathodic protection system testing, installation, and upkeep experience for all kinds of structures globally.
- NACE corrosion engineers and professionals with high levels of training.
- Team members with prior client-side CP project expertise.
- Having experience leading corrosion divisions of big utilities and pipeline industries and multimillion-dollar CP projects.
- Compared to certain regularly used CP systems, Consultech’s several unique cathodic protection technologies are more affordable and have longer lifetimes.
Your corrosion issues are CONSULTECH’s primary concern. In addition to project management and comprehensive turnkey solutions, we are prepared to help with your requirements for corrosion engineering and field service, including design, production, installation, commissioning, and continuing maintenance. Additionally, we provide a huge selection of unique corrosion protection materials.
Contact our team of corrosion specialists for additional information, to ask a question, or to request a price. Within 24 hours, we’ll give you a call or reply to your email. Call +91 9824077820 for assistance and email consultech_cp@yahoo.com right away.
