IES-Energia Bus ducts are designed and manufactured in accordance with IEC Temperature Rise Limit standards which are used for connection between transformer and LV Panel and between two switchgears. All phase conductors are placed in a common enclosure with an air space between phases. There are no metallic barriers between phase conductors of adjacent phases. The Bus duct enclosure are sheet steel fabricated, air insulated type and fully engineered to suit Customer’s requirements. The busbars installed in BTD are made of high density, high conductivity Tined copper bus bars and are insulated as per customer specifications along their length. Busbars and all joint surfaces are Tin plated as standard. All necessary equipment connection flanges, wall entrance seals, transformer and/or equipment adaptor box, elbows, offsets, wall supports, floor supports, flexible connectors are offered as per the customer requirement.