Electric cables, conduits, underwater cables and sea cables, all the aforesaid cables and conduits made of, or using, optical waveguides; amplifier devices and repeater for electric cables, conduits, underwater cables and sea cables, ports and cable connectors, ports and cable connectors for use underwater

Electrical transformers and switching systems consisting primarily of medium voltage switch gear for the purpose of supplying distributed power to industrial and commercial facilities

OPTICAL-FIBRE CABLES