Assertion: busbar | /r/ObjectUse | used enclosed diversions
Facets:
value: for more than 50 years
type: TEMPORAL
value: fully
type: MANNER
Source sentences:
text: Busbar is used for more than 50 years, evolving from the large busbars in a heavy metal casing, metal cabinets with bolt-on tap-off units for a fully enclosed steel or aluminum housing with copper or aluminum conductors, fully enclosed diversions block with protected contacts for maximum security.