XLPE Cables with Aluminium Laminated Sheath

Single-core power cables with aluminium laminate used
as radial watertight need qualified solutions and
instructions regarding grounding. There is often lack of
information from the cable suppliers regarding the
importance of proper connections and use of sufficient
cross section of grounding wires. The aluminium laminate
must be considered as a conducting screen together with
the copper wire screen. If the copper screen and laminate
are not properly connected at cable joints, end
terminations, grounding points etc. cable failure can occur
due to heat development caused by induced currents in
the screens. Instructions in standards states that any
conducting element shall be grounded.