Grounding for our href="http://www.electrosmogshielding.co.uk/product.asp?P_ID=636&CAT_ID=134">magnetic field shielding film MCL61. The surface of MCL61 is electrically insulated.
Whilst screwing down the cable lug, the chopper disks will perforate the polyester film and arrange electrical contact thereby.
PDF : YSHIELD Grounding TDS