Electricity connectors; branch connectors, lugs, sleeves and accessories for insulated or bare electric junction, linking and connection; sheaths for electrical cables and wires and overhead power transmission lines; low voltage and medium voltage power distribution sheaths, connectors and sleeves; power-line transmission devices, instruments, and apparatus; including digital-stored and downloadable instructional materials sold together with the aforesaid goods; accessories, parts and fittings for all the aforesaid goods allowed in this class