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Mendeleevets-MM – shallow silicon iron anodes

Анодные заземлители "Менделеевец"-ММ

Included in the Gazprom register
Included in the Transneft register

Certification: CU (Customs Union),
GAZPROMCERT, GAZCERT

Favourable decision of a sanitary-hygienic
commission of experts

Application area

Anodes Mendeleevets-MM are meant to be applied as poorly soluble elements of shallow anode groundbeds in the sets of cathodic protection from corrosion of pipelines and other underground metal constructions. Type of groundbed disposition may be horizontal or vertical.

Technical details

Схема Менделеевец-ММ
  1. silicon iron electrode;
  2. thermocontracting coupler;
  3. connecting cable.

Anode groundbed is an electrode made from silicon iron (corrosionresistant iron-siliceous alloy) with connecting cable. Length of the cable is 2 m in the standard option.

There are two modifications of groundbeds different in weight and dimensions: MM(23) and MM(43).

Electrodes have a core-sand mold and the molding is of circular section. In the head part of an electrode there is a contact junction filled with specially developed chemically-resistant solution on the base of polymeric compound and firmly isolated from the outside with thermocontracting couplers.

Quantity of anode groundbeds, distance between them and the type of disposition are determined by the project of cathodic protection.

Grounbeds are assembled into the electric circuit. Connection to the feeding cable of CP station is made through the monitor by means of backbone cable. Joining of anodic cable and backbone cable is carried out by using thermit welding or cord fasteners. We use thermocontracting couplers for isolation of cable joinings.

The hollow space around the anode should be filled with a coke-mineral activator (KMA) produced by Chemservice in order to reduce spreading resistance of anodic current and to slow down anodic dissolution.

Technical data

Parameter nameValue
MM(23)MM(43)
Current load, A, no more than 3,9 7,3
Anodic dissolution rate, kg/(A∙year), no more than 0,3
Dimensions of electrode working surface, mm:
- Length (height)
- Diameter

1510
55

1385
85
Assembled anode dimensions , mm, no more than:
- Length (height)
- Diameter

1600
90

1500
90
Nominal anode weight, kg 23 43
Assembled anode weight, kg, no more than 25 46
Lifetime, years, no less than 35

Delivery set

Standard delivery set includes 20 pcs. of anodic groundbeds with consumables necessary for their connection to the anodic pipeline cable. It is possible to change quantity of groundbeds according to the order.

Conventions

There are following conventions for ordering shallow anode groundbeds Mendeleevets-MM:

 
20 MM (23) - 2 х 10 (PKZ-PvP) - 200 х 16 (VVGng) - KZ TU 3435-040-24707490-2016
(instead TU 3435-001-24707490-99),
OKPD2 27.12.31.000
1 2 3 4 5 6 7 8 9
 
1 Number of anodes, pcs.: not restricted;
 
2 Nominal mass of an electrode, kg: 23 or 43;
 
3 Anode cable length, m;
 
4 Anode cable core section, mm²: 10, on request: 16;
 
5 Anode cable type: PKZ-PvP,
on request: PKZ-PvPp, PKZ-FF-ng(A);
 
6 Length of the main cable, m;
 
7 Main cable core section, mm²: 16, on request: 25;
 
8 Main cable type: VVGng,
on request: PKZ PvP, PKZ-PvPp, PKZ-FF-ng(A);
 
9 Cable joint kits:
cable clamps (KZ), thermit welding (TS), cable terminations (TM)
or their combinations (KZ+TM, TS+TM)
 
Parameters 6-8 can be omitted