This use is still acceptable and commonplace today.
Aluminum wiring repair cincinnati.
Consumer product safety commission cpsc underwriters laboratories ul the national electrical code nec and all insurance company underwriters.
After a decade of use by homeowners and electricians inherent weaknesses were discovered in the metal that lead to its disuse as a branch wiring material.
Aluminum wiring for branch circuits was rare before about 1965.
Aluminum wiring becomes common for branch circuits.
Corrosion of the metals in the connection particularly.
Using this method requires this repair to be made at all aluminum connections.
Aluminum building wiring is a type of electrical wiring for residential construction or houses that uses aluminum electrical conductors.
The wiring that is of major concern is the single strand solid aluminum wiring connected to the smaller branch circuits supplying receptacles switches lights and appliances such as dishwashers furnaces etc.
Aluminum wiring is still permitted and used for certain applications including residential service entrance wiring and single purpose higher amperage circuits such as 240v air conditioning or electric range circuits which usually consist of multi strand wiring.
A brief history of aluminum wiring.
Aluminum conductors in larger sizes were in common use by 1950.
The re paired system with short copper wire exten sions at every termination throughout the.
The repair should include every connection or splice involving aluminum wire in the home in cluding outlets dimmers switches fixtures appliances and junction boxes.
The problems of aluminum wiring are associated mainly with small sizes for branch circuits and appliances.
This directory lists aluminum electrical wiring repair electricians electrical panel repair or replacement electricians who emphasize that they are familiar with the proper methods for aluminum wiring repair using the copalum or other approved methods and or who specialize in federal pacific electric stab lok breaker panel replacement zinsco zinsco sylvania.
Between approximately 1965 and 1973 single strand solid aluminum wiring was sometimes substituted for copper branch circuit wiring in residential electrical systems due to the sudden escalating price of copper.
Aluminum provides a better conductivity to weight ratio than copper and therefore is also used for wiring power grids including overhead power transmission lines and local power distribution lines as well as for power wiring of some airplanes.
