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प्रश्न
Explain the method of impressed current cathodic protection.
टिप्पणी लिखिए
उत्तर
Impressed current cathodic protection is to convert anode to cathode by nullifying the rate of corrosion.The structure is connected to D.C.
- This is done by rectifying a.c ensuring the connection between anode and new electrode.
- Anode used is an inert material such as graphite,pt etc.
- Anode is buried in backfill such as gysum to increase the electrical contact between soil and metal.
- This protection is used for underground structures like water tanks,pipelines,transmission towers etc.
- The method is better and more efficient than sacrificial anode method.
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Cathodic Protection Impressed Current Method
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