: Disconnect completely, secure against re-connection, verify the installation is dead, carry out earthing/short-circuiting, and provide protection against adjacent live parts.
: Proper use of insulated tools, wire strippers, electricians' knives, and various pliers (long nose, side cutters, crimpers). Practical Electrical Equipment and Installation...
: Installation of residential and industrial components like switches (one-way, two-way, dimmers), receptacles, and lighting fixtures. : Disconnect completely
: Reading AC single-line/three-line diagrams, connection drawings, and ANSI device symbols. secure against re-connection