Backshells take in bundles without interference
A
KEC product story
Edited by the Engineeringtalk editorial team
May 28, 2002
KEC has adapted a miniature 37-way Inotec D-type backshell to accommodate a heavy-duty cable assembly that would not normally fit a standard D backshell.
KEC has adapted a miniature 37-way Inotec D-type backshell to accommodate a heavy-duty cable assembly that would not normally fit a standard D backshell.
The original system requirement was for a heavy-duty, extremely strong, cable bundle with a cable diameter in excess of 20mm.
This was required to fit a standard D-type connector in order to simplify interface requirements, but there were no standard backshells with a sufficiently large cable entry.
The solution chosen was to split the cable bundle into three smaller bundles and use a multi-entry D backshell.
The problem remained as to how this could be achieved while retaining EMC integrity.
When dividing the cable into three smaller bundles great care was taken to share the overall screen between the three.
Each of the legs was then over-braided, at the same time ensuring that the braid encircled the shared section of overall screen.
In this way full continuation of the 360-degree screen was achieved.
Each leg was then jacketed with a heat-shrink tube and the screened and jacketed leg then fully terminated with a crimp flange and ferrule into an Inotec multi-entry backshell.
A three-branch boot is used to 'tidy up' the three-way split in the overall cable.
This special product design can now be provided in two- or three-branch format for oversize cable bundles and is an example of the growing use of the specialised EMC cable assembly facility at KEC.
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