User talk:Anti-ShortBushing
In the late 1940's there were many fires that were attributed to electrical sources, particularly to the use of armored cable. Harry Freeman, the Manager of the Wire and Cable Division at CSA was given the task to investigate the problem. Bert Barraclough, Vice-President of Manufacturing, Triangle Conduit and Cable Canada was brought into the investigation and for some two years the two responded to every fire call in Toronto.
The findings of the investigation were that the conductor insulation in the armored cable was being cut by the very sharp edges of the cut armor when terminations were being made.
The two investigators found that the insertion of a hard, waxed fiber bushing between the armor and the insulated conductors would prevent damage to the insulation and the anti-short bushing was born. There were many attempts to make the bushing of other materials since the bushing that was put into use was quite expensive and no suitable alternative product was found until 1960. The idea of producing a molded plastic bushing that was stronger and could be designed for efficient insertion into the cable, came about.
This was the origin of the anti-short plastic bushing that became the standard for the industry. There have been many refinements to the bushing and many attempts to copy the product but the plastic anti-short bushing has continued to be the industry standard to this day due to the continued quality assurance and technology improvements by the manufacturer working with the UL & CSA. There are now 19 different sizes available and they are manufactured in 90°C, 105°C, and 150°C material. They can be supplied with or without 3 indicator* tabs for easy identification by the electrical inspectors and to comply with CSA and UL requirements.
I redirected the page you created, as Wikipedia already has a page on the topic titled Bushing (electrical) you may want to merge the content there, but it will need some work in both structure and tone first. Let me know if you need any help. --Daniel J. Leivick (talk) 09:07, 12 December 2007 (UTC)