Manufacture of Plugs

Abstract

Plug devices are used for the connection of mobile and portable electric power users. Accordingly, they connect and disconnect fixed and movable lines, without the use of tools or aids. The use of plug devices is rQustrated in Fig. 1. The accessories are designed so that parts of socket-outlets and connectors (when they are wired as in normal use) and live parts of plugs and appliance inlets (when in partial or complete engagement with complementary accessories), are not accessible. Accessories with earthing contact are designed in such a way that: