The very principle of an electrical installation is to connect and connect electrical conductors together to allow the passage of electric current and its routing to devices (switches, junction boxes and taps, sockets) or to ensure the continuity of protective conductors to earth. These connections are still made today by mechanical devices guaranteeing both quality and permanence of contact. It should be remembered that splices, once widely used to connect drivers to each other, are now strictly prohibited.
Regardless of the type of connector used, the connection of the conductors to the connection accessories requires a precise stripping of the wires, cleared over a short length of their insulating protective sheath. This stripping length must correspond to the depth of the cells of the connector, to avoid any risk of accidental contact between live conductors.
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