Corrosion of underground pipelines and protecting from it
Methods of cathode defence of pipelines from corrosion
For the corrosion protection of underground pipelines on the route of their bedding the stations of cathode defence are erected (SKZ). The source of direct-current (protective setting), anodic grounding, control and measuring point, leads and cables, enter in the complement of SKZ.
In a chart with extensive anodes the special anodes of cable type, consisting of metallic explorer (tendons), covered the special electro-conducting shell from elastomera, are used. Most rational is the use of extensive anodes, put on all length of pipeline