NDT Inspect – NDT Career and Community Portal | Cathodic Protection | Activity https://ndtinspect.com/groups/cathodic-protection/ Activity feed for the group, Cathodic Protection. Sat, 18 Apr 2026 07:23:07 +0500 https://buddypress.org/?v=2.21.0 en-US 30 hourly 2 47b8462aae7d1216b4ce4f0f2d394bd8 tcgjr started the discussion Is "stray current testing" a misnomer? in the forum Cathodic Protection https://ndtinspect.com/groups/cathodic-protection/forum/discussion/is-stray-current-testing-a-misnomer/ Fri, 20 Oct 2023 20:26:32 +0500 Is "stray current testing" a misnomer?

AFAIK, stray current testing consists of measuring the potential (voltage) between two locations (typically 30-meters or 100-feet apart*) using a high impedance voltmeter or datalogger.

A fixed criteria of typically 50-mV is used to determine if there are possible damaging currents in the electrolyte.

  • 1. Since only potential is being measured,…

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]]> 4944d7f7ff21bc016c899e9f0b37b0da NDT-Inspect started the discussion Why would Cathodic protection fail? in the forum Cathodic Protection https://ndtinspect.com/groups/cathodic-protection/forum/discussion/why-would-cathodic-protection-fail/ Fri, 06 Jan 2023 06:06:44 +0500 Why would Cathodic protection fail?

There are several reasons why cathodic protection systems can fail. Some common causes of failure include:

  1. Inadequate design: If the cathodic protection system is not properly designed for the specific application, it may not provide sufficient protection against corrosion.

  2. Poor installation: If the cathodic protection system is not…

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]]> d1e3cefaa8fd19da57b4cf828d136b4d NDT-Inspect started the discussion Examples of the use of cathodic protection in the forum Cathodic Protection https://ndtinspect.com/groups/cathodic-protection/forum/discussion/examples-of-the-use-of-cathodic-protection/ Fri, 06 Jan 2023 06:05:34 +0500 Examples of the use of cathodic protection

There are many examples of the use of cathodic protection in various industries:

  1. Oil and gas: Cathodic protection is commonly used to protect pipelines and storage tanks in the oil and gas industry.

  2. Marine: Cathodic protection is used to protect ships, offshore platforms, and other marine structures from corrosion caused by…

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]]> 1a76f3fbf12300ad26de350fc570601e NDT-Inspect started the discussion How Cathodic Protection Works in the forum Cathodic Protection https://ndtinspect.com/groups/cathodic-protection/forum/discussion/how-cathodic-protection-works/ Fri, 06 Jan 2023 06:04:36 +0500 How Cathodic Protection Works

Cathodic protection is a method used to protect metal structures, such as pipelines, tanks, and ships, from corrosion. It works by using an electrical current to reduce the corrosion of the metal.

There are two main types of cathodic protection: galvanic cathodic protection and impressed current cathodic protection.

In galvanic cathodic…

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]]> 6ec131db745bb2fe32f9cb3980b8b01e NDT-Inspect posted an update in the group Cathodic Protection: Cathodic protection is a technique used to prevent […] https://ndtinspect.com/news-feed/p/21521/ Thu, 08 Dec 2022 13:00:43 +0500 Cathodic protection is a technique used to prevent the corrosion of metal structures, such as pipelines, ships, and offshore platforms.

It works by using an electric current to create a protective coating on the metal surface, which prevents the formation of rust and other corrosion products. In cathodic protection systems, a direct current…

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