Description
In cathodic protection systems against corrosion, modernized double-membrane copper sulfate reference electrodes based on a combined gel and solid electrolyte with an auxiliary electrode of type KMG-MES-02-(P-K)-(G-T)-VE-M manufactured by KM GROUP are used, which serve to measure polarization and total potentials of protected underground metal structures – they can be purchased on our website. According to GOST 9.602-2016, all underground metal structures must be provided with a protective polarized potential, the values of which can be measured using stationary long-life copper sulfate reference electrodes manufactured by KM GROUP. The product consists of the following elements:
- copper electrode;
- gel-like saturated solution of copper(II) sulfate pentahydrate according to GOST 19347;
- ion-exchange polymer membrane;
- inner housing;
- contact unit (ion-exchange ceramic membrane);
- contact electrolytic mass or its gel-like solution;
- housing;
- auxiliary electrode;
- cable outlet with cable.
Technical description
To ensure a stable electrolytic junction between the reference electrode and the soil electrolyte at the level of the lowest resistance required when performing specific measurements of protective potential values, an ion-exchange ceramic membrane with standardized porosity is used in the long-life reference electrode. The internal cavity of the outer housing is filled with a contact electrolytic mass based on bentonite clay. The inner housing of KMG-MES-02-(P-K)-(G-T)-VE-M is filled with a gel-like saturated copper solution in which the electrode is located in the form of a spiral made of pure refined copper.
Under certain soil conditions, such as increased soil resistivity, the so-called “arid soils”, the KMG-MES-02-(P-K)-(G-T)-VE-M reference electrode gains higher stability and durability due to the fact that the outer housing is filled with a special moisture-retaining electrolytic mass based on bentonite.
To ensure convenient installation and subsequent operation of the products, the cables of the reference electrode and the auxiliary electrode are equipped with cable lugs for connection to KIP.
