ᐅ Inserting a stainless steel corrugated pipe into a cable protection conduit?
Created on: 13 Jun 2019 11:09
M
MiaBaun
Hello,
I would like to run a thicker power cable through a stainless steel flexible conduit (as shielding—there is no halogen-free cable available in this thickness with shielding). I don’t see a problem with that so far, but what about pulling this stainless steel flexible conduit DN32 through a protective cable conduit DN75 with 3 moderate bends (about 90° within 1 meter (3 feet)) over a distance of 20 meters (66 feet)? Could that work? Has anyone tried this before?
Ordering stainless steel flexible conduit by the meter has the disadvantage that it cannot be returned. Therefore, I would appreciate any evaluation or experience reports.
Best regards
MiaBaun
I would like to run a thicker power cable through a stainless steel flexible conduit (as shielding—there is no halogen-free cable available in this thickness with shielding). I don’t see a problem with that so far, but what about pulling this stainless steel flexible conduit DN32 through a protective cable conduit DN75 with 3 moderate bends (about 90° within 1 meter (3 feet)) over a distance of 20 meters (66 feet)? Could that work? Has anyone tried this before?
Ordering stainless steel flexible conduit by the meter has the disadvantage that it cannot be returned. Therefore, I would appreciate any evaluation or experience reports.
Best regards
MiaBaun
Surely you have specific reasons for using this cable. However, it is not suitable for grounding, and not allowed even with a protective conduit. For the main power supply to an entire house, a 5x16 cable is probably a better choice. I assume the meter installation is located outside the house, so the total length of the cable will also be an important factor.
That was my mistake; of course, it’s a 5x16 mm² (0.02x0.025 in²). Since it is installed inside a conduit (not the stainless steel corrugated tube, but separately in a Kabuflex), separated from the ground, and there doesn’t seem to be a real alternative, my electrician agrees with using it.