{"product_id":"pr-466-143602-r01-the-impact-of-fluctuations-in-ac-interference-on-the-corrosion-risk-for-buried-pipelines-1","title":"PR-466-143602-R01 The Impact of Fluctuations in AC Interference on the Corrosion Risk for Buried Pipelines","description":"\u003cp\u003eThe objective of paper is to study the effect of fluctuating AC interference phenomenon (AC interference time duration and level of AC interferences) on the corrosion risk of pipelines. This fluctuation typically represents the actual condition experienced by the pipeline but is not entirely captured or discussed in current guidelines or standards (e.g., the EN 15280:2013) which operates only with average values over a representative period of time. This study involves systematic laboratory investigations of fluctuating AC voltage levels (0, 6, 25, and 40 V) for various time durations and the comparison of the resulting corrosion rates. The DC ON-potential has been kept constant at four different levels (-1100, -1250, -1500, and -1750 mV CSE). The corrosion rates have been measured on weight loss coupons as well as ER probes in circular and rectangular shapes. Conditions and resulting corrosion rates for fluctuating AC conditions have been compared with conditions and corrosion rates obtained in reference experiments with constant AC. Potential mapping of the experimental setup has been made to verify the setup, which was found to be satisfactory. It also underlines the importance of a proper experimental design for laboratory scale AC corrosion investigations.\u003c\/p\u003e","brand":"PRCI Store","offers":[{"title":"Default Title","offer_id":44367588819022,"sku":"55614","price":250.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/prci-store.myshopify.com\/products\/pr-466-143602-r01-the-impact-of-fluctuations-in-ac-interference-on-the-corrosion-risk-for-buried-pipelines-1","provider":"PRCI Store","version":"1.0","type":"link"}