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Coupon test station for monitoring the effectiveness of cathodic protection
Coupon test station for monitoring the effectiveness of cathodic protection
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机译:优惠券测试站,用于监控阴极保护的有效性
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摘要
A test station for measuring the effectiveness of cathodic protection including a cylindrical plastic reference tube extending downwardly through the soil to near the protected structure, such as a pipe. Two plastic coupon tubes extend within the chamber of the reference tube attaching to opposite sides of its interior sidewalls. First and second circular cylindrical rod-shaped coupons attach to, and sealingly engage, the bottom ends of the coupon tubes. Insulated conductors extend from attachment to each coupon upwardly through the coupon tubes. A first coupon is electrically connected to the pipe, and the second coupon is used to measure a free-corrosion (native) potential.
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