5 Startup
5.1 Design guidelines
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OZD Profi G12D... ATEX 1 V. 03 07/2014
5.1.7 Execution of sheath connections
Kindly consider following points when laying the cable
sheaths:
Fix braid cable sheath with metal cable clamps.
The clamps must extensively enclose the sheath and
have a good contact (see Figure 10).
Contact the cables only through the copper braid
sheath and not through the aluminium foil sheath. The
foil sheath is placed on a plastic foil for increasing the
tensile strength and thus non-conductive!
All cable sheaths leading from outside to the protecti-
ve housing must be intercepted at the entry point of
the protective housing and extensively contacted with
the earth of the protective housing.
When removing the cable sheaths ensure that the
braid sheath of the cables is not damaged. Tinned or
galvanically stabilised surfaces are ideal for a good
mutual contact of grounding elements. For tinned sur-
faces, the required contacts must be ensured with a
suitable gland. Painted surfaces at the point of
contact are not suitable.
Sheath catching/contacts must not be used as strain
relief. Contact to the shielding bus may deteriorate or
tear.
Fig. 10: Fixing sheathed cables with cable clamps and hose clip
(schematic presentation)
