Process for assembling a clad busbar of an electrical installation
AssigneeMerlin Gerin
InventorsGeorges Henry, Jean Kieffer
Life of this patent
Estimating the term…
Abstract
The present invention relates to an insulated high voltage transmission line and method for pre-assembling in the factory the sections of this line. The busbar is inserted into the cylindrical outer metal casing and held inside the casing by a removable support. On the job site, the removable support is withdrawn from the casing and the sections are connected in the usual manner. Support tools are used to avoid the bar overhanging during pre-assembling in the factory or assembling of the sections on the job site. During shipping the bar is inserted into the metal casing.
Claims7
A busbar assembly process for a high voltage metal clad electrical installation having sub-divided modular sections, each modular section having a tubular metal cladding enclosure fitted with fixing flanges at the ends, a conductor bar coaxially fitted inside the enclosure, and a support insulator fixed to one of said flanges and supporting said bar at one of its ends, said method comprising the steps of:
- pre-assembling each section at an off-site location by inserting the bar into the enclosure, the bar being supported by a carriage;
- fixing one end of the bar to the support insulator fastened to one of the ends of the enclosure;
- temporarily supporting the opposite overhanging end of the bar by a temporary supporting tool;
- withdrawing the carriage from a free end of the enclosure;
- and fitting the overhanging end of the bar on a removable support which bears on the enclosure;
- and
- shipping the assembly to an on-site location and withdrawing the removable support from the enclosure before connecting the section to an adjacent section.
Dependencies are inferred from the claim text.