Electrode assembly and cathodic protection system

Abstract

The utility model discloses an electrode assembly and cathodic protection system relates to the protection technical field of offshore photovoltaic and wind power device, wherein, electrode assembly includes counterweight, electrode body and positioning structure, and counterweight is equipped with the mounting groove, and electrode body is located in the mounting groove, and positioning structure is located in the outer surface of counterweight, is used for with seabed surface and inserts to position counterweight. The utility model provides technical scheme to improve the scouring resistance of electrode assembly, and then improves the use stability of electrode assembly whole.

Description

Technical Field

[0001] This utility model relates to the field of protection technology for offshore photovoltaic and wind power devices, and in particular to an electrode assembly and a cathodic protection system. Background Technology

[0002] Offshore photovoltaic and wind power installations operate in extremely harsh marine environments. Seawater erosion and corrosion have always been key challenges affecting the service life and safety of these installations. Cathodic protection systems are crucial for corrosion prevention in offshore photovoltaic and wind power installations, with electrode components forming the main part of this protection. However, since these electrode components are located in a seawater environment, they are subject to seawater erosion, affecting their stability and operational safety.

[0003] Existing electrode assemblies typically mount the electrode body directly onto the cable and use concrete blocks for counterweight to confine the electrode body within the seawater environment. However, in the high-velocity, high-scouring environment of seawater, the high-speed flow of seawater can cause the concrete to shift, leading to excessive stretching and breakage of the cable, thus affecting the normal use of the electrode body. Utility Model Content

[0004] The main objective of this invention is to propose an electrode assembly and a cathodic protection system, which aims to improve the erosion resistance of the electrode assembly and thus enhance the overall stability of the electrode assembly in use.

[0005] To achieve the above objectives, the electrode assembly proposed in this utility model is used in a seawater environment and includes:

[0006] The counterweight has a mounting slot.

[0007] Electrode body, disposed in the mounting groove; and

[0008] A positioning structure is provided on the outer surface of the counterweight and is used to insert into the seabed to position the counterweight.

[0009] In one embodiment, the positioning structure includes:

[0010] Multiple first puncture elements are evenly spaced on the outer peripheral surface of the counterweight, and the ends of the multiple first puncture elements away from the counterweight are inclined in a direction away from the axis of the counterweight.

[0011] In one embodiment, the outer diameter of the first puncture member is reduced in the direction away from the counterweight.

[0012] In one embodiment, the positioning structure further includes:

[0013] The second puncture member is located at the bottom of the counterweight and is arranged parallel to the axis of the counterweight.

[0014] In one embodiment, the electrode assembly further includes:

[0015] The connecting cable is provided. The counterweight block has a through hole that communicates with the mounting groove. One end of the connecting cable passes through the through hole and is electrically connected to the electrode body. The other end of the connecting cable is used to connect to an external power source.

[0016] In one embodiment, the connecting cable comprises, from the inside out, the following components arranged sequentially:

[0017] A plastic-coated steel wire rope, one end of which is connected to the counterweight, and the other end of which is used to connect to an external fixed object;

[0018] A cable is wound around the outer circumference of the plastic-coated steel wire rope; one end of the cable is electrically connected to the electrode body, and the other end of the cable is used to connect to an external power source.

[0019] An insulating sheath covers the entire outer periphery of the plastic-coated steel wire rope and the cable.

[0020] In one embodiment, the electrode assembly further includes:

[0021] A support tube is disposed at the through hole, and the connecting cable passes through the support tube and the through hole in sequence. The support tube is sealed to the outer periphery of the connecting cable.

[0022] An elastic buffer is sleeved on the outer periphery of the connecting cable, and the elastic buffer is connected to the end of the support tube opposite to the through hole.

[0023] In one embodiment, the electrode assembly includes a plurality of electrode bodies, which are arranged side-by-side at intervals in the mounting groove, and the plurality of electrode bodies are connected in parallel.

[0024] In one embodiment, the mounting groove has two opposite sidewalls with fixing holes, and the opposite ends of the electrode body are respectively disposed in the fixing holes. There is a gap between the electrode body and the bottom of the mounting groove.

[0025] This invention also proposes a cathodic protection system, including the electrode assembly described in any of the above embodiments.

[0026] In this invention, the electrode assembly is used in a seawater environment. It comprises a counterweight, an electrode body, and a positioning structure. The counterweight has a mounting groove; the electrode body is located in the mounting groove; and the positioning structure is located on the outer surface of the counterweight for insertion into the seabed to position it. Compared to existing electrode assemblies that only use a counterweight to confine the electrode body to the seawater environment, this invention incorporates a positioning structure that can be inserted into the seabed to fix the counterweight there, preventing seawater erosion from causing it to move and thus ensuring the stability of the electrode body. This improves the electrode assembly's erosion resistance and overall stability. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of an embodiment of the electrode assembly provided by this utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of an embodiment from another perspective;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of another embodiment from another perspective.

[0031] Explanation of icon numbers:

[0032] 100. Counterweight; 110. Mounting slot;

[0033] 200. Electrode body;

[0034] 300. Positioning structure; 310. First puncture component; 320. Second puncture component;

[0035] 400. Connecting cables;

[0036] 510. Support tube; 520. Elastic buffer component.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] Offshore photovoltaic and wind power installations operate in extremely harsh marine environments. Seawater erosion and corrosion have always been key challenges affecting the service life and safety of these installations. Cathodic protection systems are crucial for corrosion prevention in offshore photovoltaic and wind power installations, with electrode components forming the main part of this protection. However, since these electrode components are located in a seawater environment, they are subject to seawater erosion, affecting their stability and operational safety.

[0042] Existing electrode assemblies typically mount the electrode body directly onto the cable and use concrete blocks for counterweight to confine the electrode body within the seawater environment. However, in the high-velocity, high-scouring environment of seawater, the high-speed flow of seawater can cause the concrete to shift, leading to excessive stretching and breakage of the cable, thus affecting the normal use of the electrode body.

[0043] This invention proposes an electrode assembly to improve its erosion resistance and thus enhance its overall stability in use.

[0044] Please see Figures 1 to 3 In one embodiment, the electrode assembly is used in a seawater environment and includes a counterweight 100, an electrode body 200, and a positioning structure 300. The counterweight 100 is provided with a mounting groove 110; the electrode body 200 is disposed in the mounting groove 110; and the positioning structure 300 is disposed on the outer surface of the counterweight 100 for insertion into the seabed to position the counterweight 100.

[0045] The counterweight 100 is used to submerge in the sea to confine the electrode assembly within a seawater environment. In one embodiment, the upper surface of the counterweight 100 is recessed to form a mounting groove 110, and the outer bottom surface of the counterweight 100 is used for direct contact with the seabed surface. In one embodiment, the counterweight 100 is configured as a concrete block to enable it to be used for a long time in harsh environments such as underwater, and to be less susceptible to corrosion or damage. An anti-corrosion coating may also be applied to the surface of the concrete block. Of course, in other embodiments, the counterweight 100 may also be configured as a cast iron block or stone block coated with an anti-corrosion coating, etc., and no limitation is made herein.

[0046] The electrode body 200 is a key structure for the electrode assembly to perform its functions. In one embodiment, the opening of the mounting groove 110 is directly connected to the seawater environment. The electrode body 200 is installed in the mounting groove 110. When the counterweight 100 sinks to the seabed, it can bring the electrode body 200 into the sea, allowing the electrode body 200 to directly contact the seawater environment. In one embodiment, the electrode body 200 is configured as an auxiliary anode, which can be connected to the power structure of an offshore photovoltaic or wind power device. By introducing current into the seawater, it forms a complete current loop with the pile foundation of the offshore photovoltaic or wind power device, allowing negative charges to accumulate on the surface of the pile foundation. The auxiliary anode can be configured as an MMO / Ti material to improve its service life. In another embodiment, the electrode body 200 is configured as a reference electrode, which can be connected to the power structure of an offshore photovoltaic or wind power device. The reference electrode and the pile foundation of the offshore photovoltaic or wind power device form an electrochemical loop through the seawater to detect the potential of the pile foundation. The reference electrode can be made of high-purity zinc or Ag / AgCl, etc., and there are no restrictions on this.

[0047] The positioning structure 300 is used to position the counterweight 100 on the seabed surface. In one embodiment, the positioning structure 300 is located on the outer peripheral surface of the counterweight, and the positioning structure 300 is configured as a piercing structure that can be directly inserted into the seabed surface to connect the seabed surface and the counterweight 100, thereby positioning the counterweight 100.

[0048] In this invention, the electrode assembly is used in a seawater environment. It comprises a counterweight 100, an electrode body 200, and a positioning structure 300. The counterweight 100 has a mounting groove 110; the electrode body 200 is located in the mounting groove 110; and the positioning structure 300 is located on the outer surface of the counterweight 100 for insertion into the seabed to position the counterweight 100. Compared to existing electrode assemblies that only use the counterweight 100 to confine the electrode body 200 to the seawater environment, this invention incorporates the positioning structure 300, which can be inserted into the seabed to fix the counterweight 100 thereto, preventing seawater erosion from causing the counterweight 100 to move and thus ensuring the stability of the electrode body 200. This improves the electrode assembly's resistance to erosion and enhances its overall stability.

[0049] Please see Figures 1 to 3 In one embodiment, the positioning structure 300 includes a plurality of first puncture members 310, which are evenly spaced on the outer peripheral surface of the counterweight 100, and the ends of the plurality of first puncture members 310 away from the counterweight 100 are inclined in a direction away from the axis of the counterweight 100.

[0050] In one embodiment, a plurality of first piercing elements 310 are arranged around the outer peripheral surface of the counterweight 100, that is, each outer surface of the counterweight 100 is provided with a plurality of first piercing elements 310. One end of each of the plurality of first piercing elements 310 is fixed to the counterweight 100, and the other end of each of the plurality of first piercing elements 310 extends toward the bottom surface of the counterweight 100 and is inclined away from the axis of the counterweight 100. The number of first piercing elements 310 can be flexibly set according to the volume of the counterweight 100 and the actual seawater environment conditions of the application, and is not limited here. In one embodiment, the first piercing elements 310 are configured as stainless steel to ensure that the first piercing elements 310 have good strength and corrosion resistance. Of course, in other embodiments, the first piercing elements 310 can also be configured as concrete or titanium alloy, etc., and is not limited here.

[0051] In one embodiment, the inclination angle of the first piercing member 310 relative to the axis of the counterweight 100 is greater than or equal to 45 degrees and less than or equal to 75 degrees. This avoids the situation where the inclination angle is too small, making it unable to withstand the large scouring force and prone to deformation; conversely, it avoids the situation where the inclination angle is too large, resulting in a small contact area with the seabed surface and easy sliding on the seabed surface. Specifically, in one embodiment, the inclination angle of the first piercing member 310 is 60 degrees. Of course, in other embodiments, the inclination angle of the first piercing member 310 can be flexibly set according to actual conditions, and is not limited here.

[0052] The technical solution of this utility model embodiment provides a plurality of first puncture members 310 on the outer peripheral surface of the counterweight 100, which can limit the counterweight 100 in all directions. The plurality of first puncture members 310 are all inclined, which makes it easier to insert into the seabed and adapt to seabeds with different structures. On the other hand, it can better withstand and resist seawater erosion from all directions, further improving the erosion resistance of the electrode assembly.

[0053] Please see Figures 1 to 3 In one embodiment, the outer diameter of the first puncture member 310 is reduced in the direction away from the counterweight 100.

[0054] In one implementation, the outer diameter of the end of the first puncture member 310 near the counterweight 100 is larger than the outer diameter of the end of the first puncture member 310 away from the counterweight 100, and the end of the first puncture member 310 away from the counterweight 100 is a pointed end. The specific dimensions of the outer diameter at each position of the first puncture member 310 can be set according to actual conditions, as long as the outer diameter of the first puncture member 310 is reduced in the direction away from the counterweight 100; no restrictions are imposed here.

[0055] The technical solution of this utility model embodiment is to gradually reduce the outer diameter of the first puncture member 310, with the end of the first puncture member 310 away from the counterweight 100 being smaller, making it easier for the first puncture member 310 to be inserted into the sea; the outer diameter of the end of the first puncture member 310 close to the counterweight 100 is larger, ensuring the strength of the position of the first puncture member 310 that is subjected to seawater erosion, thereby ensuring the service life of the first puncture member 310.

[0056] Please see Figures 1 to 3 In one embodiment, the positioning structure 300 further includes a second puncture member 320 disposed at the bottom of the counterweight 100, and the second puncture member 320 is arranged parallel to the axis of the counterweight 100.

[0057] In one embodiment, the second piercing element 320 is disposed at the bottom of the counterweight 100 and away from the opening of the mounting groove 110, and the axis of the second piercing element 320 coincides with the axis of the counterweight 100. In another embodiment, the outer diameter of the second piercing element 320 is reduced in the direction away from the counterweight 100 to prevent the second piercing element 320 from inserting into the seabed surface. Of course, in other embodiments, multiple second piercing elements 320 may be provided, and multiple second piercing elements 320 are arranged parallel to and around the axis of the counterweight 100; this is not limited here.

[0058] The technical solution of this utility model embodiment, by setting the second puncture member 320, can provide a stable support point for fixing the counterweight 100 to the seabed surface, and can limit the counterweight 100 at the same time as the first puncture member 310, further improving the erosion resistance of the electrode assembly.

[0059] Please see Figure 1 and Figure 3 In one embodiment, the electrode assembly further includes a connecting cable 400. The counterweight 100 has a through hole that communicates with the mounting groove 110. One end of the connecting cable 400 passes through the through hole and is electrically connected to the electrode body 200. The other end of the connecting cable 400 is used to connect to an external power source.

[0060] In one embodiment, a through hole is provided on the outer periphery of the groove opening of the mounting groove 110 and is connected to the mounting groove 110. One end of the connecting cable 400 passes through the through hole to be electrically connected to the electrode body 200 in the mounting groove 110, and the other end of the connecting cable 400 extends to the sea surface to be electrically connected to the power supply structure of the offshore photovoltaic or wind power device to supply power to the electrode body 200.

[0061] In one embodiment, the connecting cable 400 includes a plastic-coated steel wire rope, a cable, and an insulating sheath arranged sequentially from the inside out. One end of the plastic-coated steel wire rope is connected to the counterweight 100, and the other end of the plastic-coated steel wire rope is used to connect to an external fixed object. The cable is wound around the outer periphery of the plastic-coated steel wire rope, one end of the cable is electrically connected to the electrode body 200, and the other end of the cable is used to connect to an external power source. The insulating sheath covers the entire outer periphery of the plastic-coated steel wire rope and the cable.

[0062] In one embodiment, the plastic-coated steel wire rope has a plastic coating, giving it good flexibility and fatigue resistance. The cable is wound around the outer periphery of the plastic-coated steel wire rope. In another embodiment, the cable and the plastic-coated steel wire rope are arranged parallel to each other or braided together. An insulating sheath tightly covers the cable and the plastic-coated steel wire rope together. The insulating sheath can be made of insulating materials such as polyethylene or polyvinyl chloride, which have good corrosion resistance and good flexibility; no limitation is made thereto.

[0063] In the technical solution of this utility model embodiment, the connecting cable 400 is configured as a plastic-coated steel wire rope, a cable, and an insulating sheath. The cable is wound around the plastic-coated steel wire rope, which provides support for the cable. The plastic-coated steel wire rope can improve the flexibility and fatigue resistance of the connecting cable 400, thereby increasing the service life of the connecting cable 400. The insulating sheath can integrate the connecting cable 400 into one unit, improving the structural compactness of the connecting cable 400. The insulation of the insulating sheath makes the use of the connecting cable 400 safer.

[0064] Please see Figure 1 and Figure 3In one embodiment, the electrode assembly further includes a support tube 510 and an elastic buffer 520. The support tube 510 is disposed at the through hole, and the connecting cable 400 passes through the support tube 510 and the through hole in sequence. The support tube 510 is sealed to the outer periphery of the connecting cable 400. The elastic buffer 520 is sleeved on the outer periphery of the connecting cable 400 and is connected to the end of the support tube 510 away from the through hole.

[0065] In one embodiment, a support tube 510 is disposed on the upper surface of the counterweight 100, with one end of the support tube 510 connected to a through hole. The support tube 510 and the through hole are coaxially arranged, and the outer diameter of the support tube 510 is adapted to the outer diameter of the through hole. The inner diameter of both the support tube 510 and the inner diameter of the through hole are slightly larger than the outer diameter of the connecting cable 400, so that the connecting cable 400 can pass through the support tube 510 and the through hole. The dimensions of the support tube 510 and the through hole can be flexibly set according to the dimensions of the connecting cable 400, and are not limited here. In one embodiment, the end of the support tube 510 away from the through hole is sealed to the outer periphery of the connecting cable 400 with an anti-corrosion sealing material to prevent seawater from entering the electrode body 200 and affecting its use. Of course, in other embodiments, the outer periphery of the support tube 510 and the connecting cable 400 can also be sealed together with a sealing gasket or the like, and are not limited here. The support tube 510 can be configured as a stainless steel tube or a titanium alloy tube to ensure that the support tube 510 has good strength and corrosion resistance. In one embodiment, an elastic buffer 520 is disposed at the other end of the support tube 510 and exposed outside the support tube 510, and the elastic buffer 520 is coaxially arranged with the support tube 510. The connecting cable 400 passes through the elastic buffer 520 before extending into the support tube 510, so that the elastic buffer 520 is sleeved on the outer periphery of the connecting cable 400. The elastic buffer 520 can be configured as a spring, a rubber elastic sleeve, or a polyurethane elastomer, etc., and there is no limitation here.

[0066] The technical solution of this utility model embodiment, by setting a support tube 510 and an elastic buffer 520, the support can provide a certain degree of rigid support for the connecting cable 400 body, and the elastic buffer 520 can buffer the swaying of the connecting cable 400 under the impact of seawater, avoiding the breakage caused by the violent swaying of the connecting cable 400, and improving the reliability of the electrode assembly.

[0067] Please see Figure 1 and Figure 3 In one embodiment, the electrode assembly includes a plurality of electrode bodies 200, which are arranged side by side at intervals in the mounting groove 110 and connected in parallel.

[0068] In one embodiment, both ends of all electrode bodies 200 are fixed to the two opposite sidewalls of the mounting groove 110. All electrode bodies 200 are evenly and parallelly arranged within the mounting groove 110. All electrode bodies 200 are connected to cables in parallel, so that each electrode body 200 can work independently. In one embodiment, there are two to four electrode bodies 200. Of course, in other embodiments, only one or more electrode bodies 200 may be provided; this is not a limitation.

[0069] In one embodiment, the mounting groove 110 has two opposite sidewalls with fixing holes, and the opposite ends of the electrode body 200 are respectively provided in the fixing holes. There is a gap between the electrode body 200 and the bottom of the mounting groove 110.

[0070] In one embodiment, all fixing holes on the sidewall of the mounting groove 110 near the through hole are connected to the through hole to facilitate cable connection to the auxiliary anode. In one embodiment, both ends of the electrode body 200 are sealed to the fixing holes. The two ends of the electrode body 200 can be connected to the fixing holes via snap-fit ​​or flange connection. Corrosion-resistant sealing material can be used to fill the gap between the electrode body 200 and the fixing hole, or a sealing gasket can be used to achieve a sealed connection; no limitation is made here. In one embodiment, the other two opposite sidewalls of the mounting groove 110 are directly connected to the seawater environment, and there is a gap between all electrode bodies 200 and the bottom of the mounting groove 110 to ensure that the electrode bodies 200 are in full contact with the seawater.

[0071] The technical solution of this utility model embodiment is to place the two ends of the electrode body 200 on the two opposite side walls of the mounting groove 110, and there is a gap between the electrode body 200 and the bottom of the mounting groove 110, thereby reducing the contact area between the electrode body 200 and the mounting groove 110 and increasing the contact area between the electrode body 200 and seawater, thus fully ensuring the realization of the function of the electrode body 200.

[0072] This utility model also proposes a cathodic protection system, including the electrode assemblies of the above embodiments. The specific structure of the electrode assembly is as described in the above embodiments. Since this cathodic protection system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0073] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An electrode assembly for use in a seawater environment, characterized in that, include: The counterweight has a mounting slot. The electrode body is disposed in the mounting groove; as well as A positioning structure is provided on the outer surface of the counterweight and is used to insert into the seabed to position the counterweight.

2. The electrode assembly as described in claim 1, characterized in that, The positioning structure includes: Multiple first puncture elements are evenly spaced on the outer peripheral surface of the counterweight, and the ends of the multiple first puncture elements away from the counterweight are inclined in a direction away from the axis of the counterweight.

3. The electrode assembly as described in claim 2, characterized in that, The outer diameter of the first puncture member is reduced in the direction away from the counterweight.

4. The electrode assembly as claimed in claim 1, characterized in that, The positioning structure also includes: The second puncture member is located at the bottom of the counterweight and is arranged parallel to the axis of the counterweight.

5. The electrode assembly as claimed in claim 1, characterized in that, The electrode assembly also includes: The connecting cable is provided. The counterweight block has a through hole that communicates with the mounting groove. One end of the connecting cable passes through the through hole and is electrically connected to the electrode body. The other end of the connecting cable is used to connect to an external power source.

6. The electrode assembly as claimed in claim 5, characterized in that, The connecting cables include, arranged sequentially from the inside out: A plastic-coated steel wire rope, one end of which is connected to the counterweight, and the other end of which is used to connect to an external fixed object; A cable is wound around the outer circumference of the plastic-coated steel wire rope. One end of the cable is electrically connected to the electrode body, and the other end of the cable is used to connect to an external power source. as well as An insulating sheath covers the entire outer periphery of the plastic-coated steel wire rope and the cable.

7. The electrode assembly as claimed in claim 5, characterized in that, The electrode assembly also includes: A support tube is disposed at the through hole, and the connecting cable passes through the support tube and the through hole in sequence. The support tube is sealed to the outer periphery of the connecting cable. An elastic buffer is sleeved on the outer periphery of the connecting cable, and the elastic buffer is connected to the end of the support tube opposite to the through hole.

8. The electrode assembly as claimed in claim 1, characterized in that, The electrode assembly includes a plurality of electrode bodies, which are arranged side-by-side at intervals in the mounting groove, and are connected in parallel.

9. The electrode assembly as claimed in claim 1, characterized in that, The mounting groove has two opposite sidewalls with fixing holes, and the opposite ends of the electrode body are respectively located in the fixing holes. There is a gap between the electrode body and the bottom of the mounting groove.

10. A cathodic protection system, characterized in that, Includes the electrode assembly as described in any one of claims 1 to 9.

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