System Elpress terminals and tools

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Kroužkové, vidličkové a kolíkové konektory Elpress ...

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When using spring washers, is sufficient and preferably placed on the opposite side the terminal. Al/Cu gives higher risk corrosion and settlement, use contact grease. This applies regardless the hard- ness the conductive materials (which are softer than HB200). • Torque wrenches must calibrated regularly. Accuracy better than ±5%. This especially im- portant for aluminium. Mounting the terminal against the connection rail Max. very important fol- low the installation instructions. • spring washer sufficient and should be placed the rear the busbar, between nut and hard flat washer, see diagram.8 * Steel 10.8. Tightening must carried out con- trolled manner using torque tools, where the relevant screw tensioned the specified torque. Cu/Al provides low risk galvanic corrosion when the rail made Al. It is important that this done correct manner, important the contact crimping the other end the terminal as described above.9 * Steel 10. order for the clamping force be distributed evenly and create sufficiently large contact area, hard flat washers must always used, type BRB HB200 SMS 70, under screw head and nut. The joint must achieve a sufficiently high clamping force, distribu- ted desirable manner and ensure the electrical properties over very long time under high and varying loads different characteristics. terminals the same size on the same screw.g. • The tension washer can normally be excluded. • Greased galvanized screws provide the least dispersion the pre-tension force. Al/Al gives weaker joint. See image below. Otherwise, the risk settlement the outer edge the flat washer increases where the clamping forces are concen- trated. • The terminal palm and busbar may of different materials. • Tightening torque according the table above. Tension washers The use different types locking elements spring washers often increases the risk settlement. Oil the screw when installing. a spring washer type DIN 6796, with very high clamping force, is positioned and secured between e. Recommended tightening torque Thread Steel 8. Even the torque recorded correctly, the pre-tension force depends entirely on the friction. tension washer type DIN 6796 used, must placed between the screw head/nut and the flat washer. nut and the hard flat washer, can provide increased margin towards excessively high settlement.9 * Stainless Stainless *Stainless * - P M5 5,5 6,6 118,0 8,0 9,2 164,0 5,5 6,2 111,0 M6 9,5 9,2 114,0 13,0 13,0 160,0 9,5 8,6 107,0 M8 23,0 17,0 116,0 32,0 24,0 164,0 22,0 16,0 109,0 M10 45,0 27,0 92,0 64,0 38,0 129,0 45,0 25,5 88,0 M12 78,0 40,0 125,0 110,0 56,0 175,0 76,0 37,0 116,0 M16 200,0 75,0 156,0 280,0 110,0 229,0 185,0 69,0 144,0 Mv tightening torque (Nm) Ff pre-tensioning force (kN) p flat pressure (N/mm²) FZB electroplated gloss chromed FZY electroplated hard chromed FZM FZM= mechanically galvanized * (FZB, FZY, FZM) A4/80 Selection washers: • Always select hard flat washers the BRB, HB200 type. Installation: • The screws must tightened with tor- que tools that tightening is controlled. The installation of terminal with bolt joint for electrical transmission requires special attention.9 * Steel 10. The flat washer must have an external diameter least large the tension washer. important to clean and use contact grease. Bolt joints.8 * Steel 8. • Petroleum jelly contact grease reduces corrosion risk cleaned surfaces Fastener selection: • Screws and nuts strength class 8. It must never placed directly against electrical contact surface without flat washer in between.12:6 Bolt joints Bolt joints Users/installers bolted connectors always have adhere to, and follow electrical codes and norms the local region where they are making such instal- lations. The accuracy the tool is great importance. Preparatory: • Clean contact surfaces from dirt, oxide layers and grease using steel brush and denatured alcohol. The information below general and hence, should never seen an installation instruction. Cu/CU provides the best joint, good contact and small risk settlement. The clamping force of properly tightened screw shall create a contact area large enough ensure good conductivity, without the risk overhea- ting. These are based theoretical calculations, verified tests and experience from field studies. • Choose stainless A4-80 environments when there high risk corrosion. Surfaces that are tinned, nickel-plated, silver plated must not brushed. Otherwise, there is risk large deformation the conducting material that reduces the tension, which can increase the risk inadequate contact area and overheating. Tension was- her flat washer can reduce the risk of settlement. Bolt joint with spring washer. The diameter the tension washer should less than equal the flat washer’s, even after tightening fully. .8 * Steel 8. Current load should be checked