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Water ingress in SWA.

Former Community Member
Former Community Member
High all I am new to this forum.

I have a 95mm 4 core SWA cable running to 6 Buildings which are along way apart.

This cable is fed from a feeder pillar up hill to 5 underground joints.

Within the feeder pillar the cable is underground feeding up to 3 160amp fuses and the neutral bar.

On the cable entry water is seeping up the cable and thru the gland causing rusting of the connection plate.

When loop tested at each DB the reading range from 0.29 to 0.76.

But when IR tested L1 is 0.76 L2 is 0.26 L3 is 2.89meg 

Do I need to replace the cable.
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  • Former Community Member
    0 Former Community Member
    On long runs of SWA where it is selected for volt drop rather than critical current carrying capacity, I fail to see why anyone wouldn't install it in a duct as if you work out the cost of sand/stone dust there is very little difference. Plus it means that the cable is only on site as it were for a morning rather than looking attractive waiting to be buried. And, you buy the length of cable to suit the actual length rather than hope that your initial measurement doesn't incur a diversion due to finding buried obstacles...


    Regards


    BOD
Reply
  • Former Community Member
    0 Former Community Member
    On long runs of SWA where it is selected for volt drop rather than critical current carrying capacity, I fail to see why anyone wouldn't install it in a duct as if you work out the cost of sand/stone dust there is very little difference. Plus it means that the cable is only on site as it were for a morning rather than looking attractive waiting to be buried. And, you buy the length of cable to suit the actual length rather than hope that your initial measurement doesn't incur a diversion due to finding buried obstacles...


    Regards


    BOD
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