System Elpress terminals and tools

| Kategorie: Katalog  | Tento dokument chci!

Kroužkové, vidličkové a kolíkové konektory Elpress ...

Strana 222 z 260

Jak získat tento dokument?






Poznámky redaktora
8. The flat washer must have an external diameter least large the tension washer. important to clean and use contact grease. The clamping force of properly tightened screw shall create a contact area large enough ensure good conductivity, without the risk overhea- ting. Recommended tightening torque Thread Steel 8. Current load should be checked. Tightening must carried out con- trolled manner using torque tools, where the relevant screw tensioned the specified torque. Al/Al gives weaker joint. • spring washer sufficient and should be placed the rear the busbar, between nut and hard flat washer, see diagram. The accuracy the tool is great importance. • Petroleum jelly contact grease reduces corrosion risk cleaned surfaces Fastener selection: • Screws and nuts strength class 8. Preparatory: • Clean contact surfaces from dirt, oxide layers and grease using steel brush and denatured alcohol. • The tension washer can normally be excluded. Installation: • The screws must tightened with tor- que tools that tightening is controlled. The information below general and hence, should never seen an installation instruction.g. Otherwise, the risk settlement the outer edge the flat washer increases where the clamping forces are concen- trated.8 * Steel 10. Accuracy better than ±5%. The installation of terminal with bolt joint for electrical transmission requires special attention. . When using spring washers, is sufficient and preferably placed on the opposite side the terminal. Oil the screw when installing. Bolt joints. The diameter the tension washer should less than equal the flat washer’s, even after tightening fully. 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. These are based theoretical calculations, verified tests and experience from field studies. Cu/CU provides the best joint, good contact and small risk settlement. • Choose stainless A4-80 environments when there high risk corrosion.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.9 * Steel 10. • The terminal palm and busbar may of different materials. This applies regardless the hard- ness the conductive materials (which are softer than HB200). It is important that this done correct manner, important the contact crimping the other end the terminal as described above. Tension washers The use different types locking elements spring washers often increases the risk settlement. Bolt joint with spring washer. Cu/Al provides low risk galvanic corrosion when the rail made Al.8 * Steel 8. 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. • Greased galvanized screws provide the least dispersion the pre-tension force. Even the torque recorded correctly, the pre-tension force depends entirely on the friction. a spring washer type DIN 6796, with very high clamping force, is positioned and secured between e. This especially im- portant for aluminium. It must never placed directly against electrical contact surface without flat washer in between.9 * Steel 10. Surfaces that are tinned, nickel-plated, silver plated must not brushed. very important fol- low the installation instructions.8 * Steel 8. • Tightening torque according the table above. See image below. Tension was- her flat washer can reduce the risk of settlement. tension washer type DIN 6796 used, must placed between the screw head/nut and the flat washer. Otherwise, there is risk large deformation the conducting material that reduces the tension, which can increase the risk inadequate contact area and overheating.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. Mounting the terminal against the connection rail Max. terminals the same size on the same screw. • Torque wrenches must calibrated regularly. nut and the hard flat washer, can provide increased margin towards excessively high settlement. Al/Cu gives higher risk corrosion and settlement, use contact grease