Shields to prevent electrical arc flashes occurring between conductive points on equipment.
Often high density AC.
May have been manufactured by electrical components factory.
Refer K-Lite information page.
Years of production/use
Early 20th Century up to 1990
Brands/products
General Electric
Fibrolite
K-Lite
Other internationally recognised brands
Residential uses
Older unit complexes
Industrial uses
More likely on older electrical control panels for elevators, factories, and other infrastructure where fixed plant is located
Be aware
May be housed in a custom made cabinet made from, or lined with, asbestos millboard or AC sheeting.
The presence of these may also indicate the likelihood of other ACM such as woven insulating materials in circuit breakers, wire insulation or cable wraps.