impressed current


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impressed current

[im¦prest ′kər·ənt]
(electricity)
Direct current supplied by an external power source in a cathodic protection installation.
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The impressed current technique is used for accelerating corrosion of steel reinforcement in concrete by applying direct current (DC) through an external power supply.
(2) With the increase in prestressing level in the same corrosive impressed current condition, corrosion ratio increases linearly, being 124.3-126.5% for 20% level, 165.5-166.8% for 40% level, and 178.5-189.8% for 60% level of prestressing, respectively.
The SPL-SandAnode is one of MATCOR's SPL[TM] Anode Series, a complete line of flexible impressed current linear anodes utilizing MMO anode technology to support a broad range of cathodic protection applications.
Impressed current cathodic protection is used to protect pipelines from coating defects [17].
30 JOHN RUDDY Age: 22 Nationality: English Signed from: Cambridge United, May 2005 After signing from Cambridge United in 2005, a series of loan spells have added to Ruddy's reputation, notably at Stockport, where he impressed current Motherwell boss Jim Gannon enough to sign him on loan.
9:00-9:30 am--Sprayable Dielectric Shields for Impressed Current Cathodic Protection Anodes--David Fayocavitz, Jeffrey Duckworth, Bradley Lescar-beau, and Wayne McGauly, NSWC Philadelphia
Initially signed on loan from Burnley a year ago by Peter Jackson, Sinclair has impressed current boss Andy Ritchie, who gave him a 12-month deal last close-season.
With this wide range of applications and their respective concerns it is no wonder this new edition has been fully updated with new chapters on copper, nickel, titanium and their respective alloys and on cathodic protection by impressed current and sacrificial anodes.
There is an impressed current, graphite anode bed; an AnodeFlex impressed current cathodic protection system connected to a rectifier; and a zinc ribbon cathodic protection system.
The firm has also developed an impressed current cathodic protection (ICCP) system which has been fitted on some 4,000 vessels.
Buried pipelines are normally physically protected from the environment by a coating, in conjunction with cathodic protection (CP) by way of an impressed current (1).
Impressed current. By using current generating equipment, it is possible to reproduce a current equal in strength to the corroding current, but flowing in the opposite direction.