Configuration guidelines | Placement guidelines
2.3 Strain relief The strain relief for the cables depends on cable type, length of the cable carrier and installation option. Generally, it has to be ensured that the retention force is applied on the largest possible area of the outer jacket so that the cables are not crushed while also preventing movement of the cables. ■ ■ Within the unsupported area of the cable carrier, electric cables should preferably be equipped with a strain relief at both the driven and fixed ends. For short travel lengths and smaller cable diameters, we recommend the use of strain relief combs and cable ties for this application. LineFix clamps can also be used for larger cable carriers which use a C-rail. ■ ■ Longer travel lengths , which require gliding operation of the cable carrier, should also be equipped with strain relief at both the driven and fixed end. Secure strain relief, e.g. with LineFix clamps, has to be provided especially at the driven connection where push and pull forces are present. When using the strain relief at the fixed bracket of a gliding cable carrier, it primarily has to be ensured that the installed height of the strain relief is significantly smaller than the
chain link height h G in order to prevent a collision. For slow travel speeds, it is often sufficient to provide fixation with a strain relief comb and cable ties on the fixed bracket of gliding cable carriers.
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■ ■ For vertically operating cable carriers, the cables also have to be provided with a strain relief on the driven and on the fixed bracket. For hanging cable carriers with very long travel lengths and high cable weights, it can be practical to install a double strain relief arrangement on both sides. ■ ■ Pressure hoses which will not be bolted on in direct proximity to the driven or fixed end also have to be provided with a strain relief, in the same way as the cables. We recommend the robust block clamps for this case.
2.3.1 Strain relief for gliding cable carriers Strain relief on the driven cable carrier end KR
Moving bracket
Strain relief
Correct cable length in the cable carrier After moving the cable carrier moving bracket (moving cable carrier end) to the pulling end position of the cable carrier, the cables are checked for tension-free length in the bend and, if necessary, “fed further into the cable carrier”. Strain relief on the fixed bracket cable carrier end With this tension-free “inserted length”, the cables are finally provided with a strain relief at the fixed bracket cable carrier end. After moving the cable carrier moving bracket (moving cable carrier end) to the pushing end position , the cables are provided with a strain relief at the moving cable carrier end. Test operation of the cable carrier: After an initial test run, check the tension-free cable routing and, if necessary, adjust the strain relief at the fixed bracket.
Pushing end position
Fixed bracket
KR
Moving bracket
Pulling end position
Strain relief
Fixed bracket
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