I have 2no parallel 4-core 400mm2 XLPE SWA cables laid in pvc ducts directly in the ground. They run some 90m with a load which ranges between 780A to 1230A, the latter becoming more common for longer periods due to the addition of recently installed plant. I am not sure of the cable manufacturer, nor indeed if they are XLPE as the glands are made into the bottom of the switchboards. The installing sparks must have been super nimble contortionists! Anyway, I am seeking an approximate current carrying capacity for the method of installation. I believe the cables are under sized although not showing any signs of undue degradation. The Flir shows them around 100C at one end.
