CHAPTER 8
Installing CP Components
CP 1 – Cathodic Protection Tester Course Manual
© NACE International, 2000
07/01/04
Test Stations
General
The purpose of test stations is to provide access for the measurement of the
effectiveness of a cathodic protection system. Test stations include those
installed in association with:
• cased road crossings
• anodes
• permanent reference electrodes
• coupons
• dielectric isolation
• crossings with foreign structures
• measurement of current flow on a pipe or a cable system.
Location
Selection of locations for test stations is at the discretion of the design
engineer. It is preferable to err on the side of more test stations rather than
fewer test stations. When in doubt, install a test station.
All major buried isolating fittings should be provided with suitable test
stations to permit measurements of effectiveness of isolation and to permit
installation of control resistors.
Major crossings between underground structures will generally warrant
installation of a test station.
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