Beneficii

Cross profile grounding electrode
made of welded angle bar (W)

The advantages of the cross profile grounding electrode made of welded angle bar (W) compared to the grounding electrode made of laminated cross profile (L)

  • The bending deflection is 17,1% lower in W profile than in L profile.
  • The FOS safety factor is 15,3% higher in W profile than in L profile.
  • The buckling deflection is 0,18% lower in W profile than in L profile.
  • The ground penetration area is 9,8% lower in W profile than in L profile.
  • The specific weight is 9,8% lower in W profile than in L profile.
  • The specific surface is 3,5% higher in W profile than in L profile.
  • The electric resistivity is 6,42% lower in W profile than in L profile.
  • The corrosion resistance is the same for both versions, with a 10 year warranty and an estimated service life of approximately 75 years in the absence of chemical or mechanical intervention.
  • The equivalent bending resistance in the least favorable point is 10,9% lower in W profile than in L profile.
  • The bending deflection is 17,1% lower in W profile than in L profile.
  • The FOS safety factor is 15,3% higher in W profile than in L profile.
  • The buckling deflection is 0,18% lower in W profile than in L profile.
  • The ground penetration area is 9,8% lower in W profile than in L profile.
  • The specific weight is 9,8% lower in W profile than in L profile.
  • The specific surface is 3,5% higher in W profile than in L profile.
  • The electric resistivity is 6,42% lower in W profile than in L profile.
  • The corrosion resistance is the same for both versions, with a 10 year warranty and an estimated service life of approximately 75 years in the absence of chemical or mechanical intervention.
  • The equivalent bending resistance in the least favorable point is 10,9% lower in W profile than in L profile.

Cross profile grounding electrode
made of welded angle bar (W)

Technical description

The grounding electrode is made of two laminated angle bars type profiles 1, respectively 2 adjacent and put together in such a way that they form a 4 equal wings assembly, cut straight in the upper side, perpendicular on the longitudinal axis of the electrode and cut into sharp angle at the bottom, so as to form a ground penetrating profile.

Along their length, the angle bars 1, respectively 2 forming the electrode are welded together at the top and bottom by two welding seams a, and by stiffening spot welding seams b placed at equal distances between the two welding seams a.

In order to connect the electrode to the overload discharge conductor, which is generally a conductor with a strip type rectangular profile, at the upper part on one of the angle bar profile, a flange (terminal) 3 with one or more perforations d is welded through a welding seam c. This connecting flange (terminal) is welded so as to ensure contact with both wings of the angle bar profile, obtaining a faster and uniform transfer of electric discharge and in the same time ensuring a better stiffening between the flange and electrode. The connection of the electrode to the discharge conductor can be made in any position, both at its end and in any intermediary position.

The advantages of the cross profile grounding electrode made of welded angle bar (W) compared to the grounding electrode made of laminated cross profile (L)

Technical parameters

Technical parameters UM ( W ) ( L ) Definitions/Values/Comparisons/Explanations
The specific weight kg. 2,20 2,44 Is expressed in kilograms (kg) and represents the weight of the electrode divided to its length. The specific weight of an electrode must be as low as possible, for obvious economic reasons. The specific weight is 9,8% lower in W profile than in L profile.
The specific surface mm² 195120 188291 Is expressed in square meters (sqm) and represents the elimination surface of the overload, meaning the gross area of the electrode which comes into contact with the ground, reported to its length. For reasons of electric charges transfer speed, the specific surface of an electrode must be as large as possible. The specific surface is 3,5% higher in W profile than in L profile.
The electric resistivity μΩ x m 0,175 0,187 Is expressed in ohms x meters (Ωxm) and represents the capacity of a material to fight the flow of the current. For reasons of electric charge transfer, these proportions must have as low as possible values. The electric resistance is 6,42% lower in W profile than in L profile.
The corrosion resistance years 10 10 Is expressed in a time unit and represents the duration up to which the electrode is oxidized in specific environmental conditions and the elimination of the electric charges in the ground is thus hindered. The corrosion resistance must have as high as possible values. The corrosion resistance is the same for both versions, with a 10 year warranty and an estimated service life of approximately 75 years in the absence of chemical or mechanical intervention.
The equivalent bending resistance N/mm² 163 183 Is expressed in force units reported to the surface (N/mm2) and represents a tension created in the profile subject to bending as a response of the Bending moment determined by the Bending force. The equivalent bending resistance must have as low as possible values, as distant as possible from the allowable resistance. The equivalent bending resistance in the least favorable point is 10,9% lower in W profile than in L profile.
The bending deflection mm 29,8 35,96 Is expressed in length units (mm) and represents the maximum displacement of the axis of the profile from the initial position following the application of the Bending force in a perpendicular layout on the longitudinal axis of the profile. The bending deflection must be as low as possible. The bending deflection is 17,1% lower in W profile than in L profile.
The FOS safety factor at bending in a point - 1,3 1,1 Is a non-dimensional proportion and represents the ratio between the material flow limit and the equivalent resistance in that point. The FOS safety factor must be as high as possible. The FOS safety factor is 15,3% higher in W profile than in L profile.
The buckling deflection mm 63,69 63,81 Is expressed in length units (mm) and represents the maximum displacement of the axis of the profile from the initial position following the application of the buckling axial force in the length of the axis of the profile. The buckling deflection must be as low as possible. The buckling deflection is 0,18% lower in W profile than in L profile.
The ground penetration area mm² 280,28 310,74 It is expressed in surface units (mm2) and is assimilated to the cross section through the profile. The ground penetration area must be as small as possible in order to require a force as low as possible for the penetration of the ground of the profile. The ground penetration area is 9,8% lower in W profile than in L profile.

* These products and their manufacturing technology are patent pending.

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Located in Bistrita, a town of profoundly Saxon tradition, BETAK Company aligns with the tradition of Transylvanian manufacturers, famous in Europe thanks to the top quality products compliant with the most demanding standards in the field.From the legal point of view, BETAK S.A. [joint-stock company] was founded in 1992. Its activity was started in 1995 by commissioning a small manual electrogalvanization plant in a rented facility, with only one employee.Currently, BETAK S.A. is a market leader in the production of galvanized steel strips, one of the leading manufacturers of safety guard rails in Romania, manufacturer of various steel structures and supplier of corrosion protection services by hot dip galvanizing and electrogalvanization.

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