6.0mm 6181Y Double Insulated Cable. 6181Y are flexible general wiring doublePVC insulated single-core copper conductor cables offering light protection against mechanical damage. … These cables are commonly referred to as double insulated “Meter Tails” cables or “Smart Meter” cables.
Double Insulation. Many of the newer small electrical appliances and tools do not have a the third grounding prong on the plug. … They have two levels of insulatingmaterials between the electrical parts of the appliance and any parts on the outside that you touch.