Configuration guidelines | Selecting the cable carrier
Installation height H z for steel cable carriers Due to the higher stability of steel cable carriers, the pretension z can already be taken into account on unsupported arrangements by slightly increasing the connection height H. This is based on the following calculation:
H G
Connection height H for systems without support (unsupported)
H z
H
H = 2 KR + 1.5 h G
Moving bracket
KR
Fixed bracket
If the unsupported length is increased with support rollers or a continuous support link, the upper run has to be placed parallel to the support plane.
Connection height H for sys- tems with support
H
Moving bracket Fixed bracket KR
H = 2 KR + h G
To be sure, another verification of the installation height H Z should be carried out for steel cable carriers depending on the pretension and cable carrier length. The following rule of thumb applies:
For example, the installation height H z for a cable carrier length of L k = 5000 mm increases by 50 mm. Depending on the installation option, it is still necessary to operate the cable carrier without or with reduced pretension. This is possible on almost all types.
H z = H + z Pretension z ≈ 10 mm/m cable carrier length Installation height H z
1.6 Consideration of stability In the tension end position, the stability of the cable carrier must be considered. For extensive unsupported lengths, the remaining small support area at the fixed bracket can reduce the stability for very narrow cable carriers. Accord- ingly, the ratio between bending radius KR and outer cable carrier width B k should always be taken into account for dimensioning of the cable carrier.
H
If the outer cable carrier width on an extensive unsup- ported length is significantly smaller than the required bending radius, the option of a lateral support should be considered if stability seems at risk. In this case, please contact our technical support.
Moving bracket
KR
Fixed bracket
Support area
68
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