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Draft standard [WITHDRAWN] DIN VDE – Draft. Erection of power installations with rated voltages exceeding 1 kV. from EUR VAT. Find the most up-to-date version of DIN at Engineering and protect it from deterioration. Bolting arrangements (DIN 43 ). Bar Torque Nm to DIN Plain washer to DIN Spring disc washer to DIN

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In a completed connection, the actual contact area is significantly smaller than that of the total surface area of the connection.

Image Gallery Downloads Request Information. Deburring is not necessary.

The surfaces should be even but not polished. The tension discs maintain the tension force within a defined range and are therefore also recommended for the fixing of screws. A legally binding guarantee of certain properties or of suitability for a specific purpose cannot be 43637 from our information.

Latest News of the Blog. Energy and heat transfer engineering Deviating current loads can be converted using the factors listed in DIN The contact between the surfaces is initially limited to the tip of each surface, which are therefore subjected to a significantly higher pressure than the average pressure of the connection. You must have JavaScript enabled in your browser to utilize the functionality of this dkn. If the surfaces are pressed together to be connected without the Vaseline being removed, the excess Vaseline is pressed out and contributes to the sealing of the connection and to the protection against harmful effects.


The conductor temperature caries accordingly with higher or lower ambient temperature.

433673 Due to their higher availability, steel screws are recommended. Torque for the tightening of the screws and dimensions of the washers Screw dimensions. Fluid systems and components for general use The data in this technical product information is based on our current knowledge and experience.

Construction materials and building Due to the abundance of possible influences during its application, it does not release the processor nor the user from performing their own tests and trials. The contact will therefore be better if the surface is rough, has pressing lines, or has been knurled.

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DIN 43673-1

The punching tool is constructed just like for flat copper bars. Recommendation for drilling Di speed: Copper oxide has a considerably lower electrical resistance than aluminium oxide and a negative temperature resistance coefficient. In fact, no maintenance may be necessary at all. The template should be as close as possible to the shearing edge so that the material is adequately supported. It is important that the yield strength of the material is not exceeded; a contact pressure of max.

The creep behaviour of CUAL lies between that of copper and aluminium.

Company organization, management and quality. We wish you a pleasant end-of-year holiday. Mechanical systems and components for general use The contact resistance is lower if the contact surfaces have medium coarseness RA 1.

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Do not bend over sharp edges; only perform drilling and punching after bending; avoid sudden deformation pressure. The screws can be made of a wide variety of steel grades, brass, or bronze. In the case of vibrations etc. They ensure the different expansions between the screws and the bar and compensate for any potential relaxations of the metal.


CUAL bars – EN | anoxal

Treatment of contact surfaces: JavaScript seems to be disabled in your browser. In order to ensure good electrical contact between the busbars, it is necessary to penetrate the surface film of oxides, sulphides, and other contaminants. Drilled holes 4673 screw connections for busbars; Channel section busbars.

Paint and colour industries Petroleum and related technologies When the temperature rises, the conductivity of a connection between two oxidized copper surfaces increases. Log In Sign Up. 4363

DIN – European Standards

Glass and ceramics industries The contact pressure should be spread out across oversized washers. Road vehicles engineering However, the contact surfaces should be free of oxidation and grease. In addition, sprung elements should be used that can maintain the required contact pressure.

For a given contact pressure, a copper surface has a contact resistance that is times lower than that of aluminium. A slight improvement can be achieved here: Any property rights and existing laws must be observed by the recipient of our products under their own responsibility.

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