Description
The modernized diode-resistor unit BDRM.KMG is intended for simultaneous protection of several (from one to six) parallel or intersecting, electrically isolated underground steel pipelines and other structures against electrochemical corrosion, for use as:
- potential-equalizing polarization jumpers;
- a load polarized element in sacrificial protection of pipelines and in joint protection of pipelines with protective casings;
- for distribution and regulation of the output current of a cathodic protection station (CPS).
BDRM is installed:
- to regulate protective current in areas of parallel routing of underground utilities protected by cathodic protection station(s);
- at crossing or convergence points of underground utilities having their own cathodic protection systems, to equalize the potentials of underground structures.
BDRM allows regulation of the protective current of parallel or intersecting utilities relative to the underground structure directly connected to the CPS.
The diode-resistor unit (BDRM) is manufactured in the following versions: BDRM-10, BDRM-25, BDRM-50, climatic category UHL, placement category 1 in accordance with GOST 15150-69, for operation at ambient temperatures from minus 60°C to plus 40°C with relative air humidity up to 98% at an ambient temperature of 25°C.
Installation and operation of the products must be carried out in accordance with the approved and currently valid industry regulatory, technical, and design documentation for electrochemical corrosion protection and grounding systems.
BDRM is a device with discrete current regulation. The regulation method is manual. The product is manufactured in several versions and is divided into those built into the ICP.KMG post or installed in a metal enclosure.
