Are the metal housings of the two types of power tools grounded?
Class II tools must be made of an insulated power plug, and the power plug is joined to a soft cable or cord to form a non renewable power plug.Class II tools only allow the use of non - renewable two pin power plug.
Generally speaking, the design of II tools made use of personal protective equipment operator to some reliable method in the tool, the tool has a double protective current, guarantee in the fault state, when the basic insulation failure, insulation and reinforced insulation provided by additional electric shock protection.
Class II tools, that is, insulated structures, all double insulated power tools. Its specified voltage is more than 50VClass II tools are not allowed to set ground devices. Generally insulated enclosures.
