Model model specification specification length × diameter × thickness (length × width × height) mm Length × Diameter × Thickness (L × W × H) mm Material Material CS-1 2000 × Φ108 × 4 Carbon Steel Carbon steel CS-2 1800 × Φ89 × 3 steel Carbon steel CS-3 1200 × 120 × 120 stainless steel Stainless steel CS-4 1600 × 120 × 120 cement cement CS-5 1800 × Φ 89 × 4 FRP Glass steel test piles Uses: mainly used cathodic protection parameters detection, management and maintenance of the pipeline is essential devices laid along by the test function. Pipe pile can be used for testing potential, current, insulation performance of the test, the coating layer may also be used for leak testing and DC interference. Test piles is a specialized pipeline cathodic protection with potential for test probes to test for protective pipe ancillary equipment. The anode is made more negative potential of metallic material, when it is connected to the pipe to be protected, their priority dissociation occurs, thus inhibiting the corrosion of the pipeline, it is called a sacrificial anode. Sacrificial anode should be stable enough negative potential to to maintain a large enough drive voltage: greater theoretical occur simultaneously power, but also a high and stable current efficiency I. Overview test piles designed for multi-purpose test piles, cathodic protection parameters for the detection, management and maintenance of pipeline essential devices laid along by the test function. Test for detecting pipe piles potential, current, insulation performance, the device is provided with six terminals, can easily form a potential, a current according to the specific requirements of design units, the sacrificial anode, or insulation test piles cross pipe pile test . Test piles by the pile, test wiring boards, test leads and nameplates of several parts. Second, the classification test piles: 1, Material: steel test piles, concrete test piles, test piles of plastic. Steel test piles are divided into stainless steel test piles and test piles. 2, by function: ● potential test piles: mainly used to detect potential ● sacrificial anode protection test piles: for connecting a sacrificial anode, sacrificial anode to measure performance parameters ● Current test piles: measuring tube current ● protective effect test piles: Connect the test piece.