Electrical bus bar assemblies, bus bar support assemblies, bus bar brace apparatus, yoke brace apparatus, and methods
An electrical bus bar assembly configured to maintain spacing between run-over bus bars and horizontal bus bars. The electrical bus bar assembly having a first run-over bus bar and a second run-over bus bar spaced from the first run-over bus bar, and a first horizontal bus bar spaced from the first run-over bus bar. A yoke brace apparatus is coupled between and maintains a first spacing distance D 1 between the first run-over bus bar and the second run-over bus bar, and one or more bus bar brace apparatus are provided to maintain a second spacing distance D 2 between the first run-over bus bar and the first horizontal bus bar. Yoke brace apparatus and bus bar brace assemblies, bus bar assemblies including the yoke brace apparatus and/or bus bar brace apparatus, bus bar support assemblies, supported electrical bus bar assemblies, and methods of supporting electrical bus bars are disclosed, as are other aspects.
1. An electrical bus bar assembly, comprising:
a first run-over bus bar;
a second run-over bus bar spaced a first distance from the first run-over bus bar;
a first horizontal bus bar spaced from the first run-over bus bar;
a yoke brace apparatus coupled between the first run-over bus bar and the second run-over bus bar; and
one or more bus bar brace apparatus provided to maintain a second distance between the first run-over bus bar and the first horizontal bus bar, wherein the yoke brace apparatus comprises:
a yoke brace spacer including a first end and a second end, a first yoke bracket coupled to the yoke brace spacer on the first end, the first yoke bracket coupled to the first run-over bus bar, and a second yoke bracket coupled to the yoke brace spacer on the second end opposite from the first end, the second yoke bracket coupled to the second run-over bus bar.
2. The electrical bus bar assembly of claim 1 , wherein the one or more bus bar brace apparatus comprises:
a body of insulating material;
a first opening through the body receiving at least a portion of the first horizontal bus bar; and
a second opening through the body receiving the first run-over bus bar.
3. The electrical bus bar assembly of claim 2 , comprising:
an insulating sheathing wrapping about a portion of the first run-over bus bar, the insulating sheathing passing through the second opening through the body.
4. The electrical bus bar assembly of claim 2 , comprising:
an insulating spacer received inside of the second opening wherein the insulating spacer provides a layer of insulation above, below, and on one side of the first run-over bus bar.
5. The electrical bus bar assembly of claim 2 , wherein a center of the first opening and a center of the second opening are offset from one another in an X direction.
6. The electrical bus bar assembly of claim 2 , wherein a center of the first opening and a center of the second opening are offset from one another in a Z direction.
7. The electrical bus bar assembly of claim 2 , wherein the body of insulating material comprises a notch configured to abut at least a portion of a second horizontal bus bar.
8. The electrical bus bar assembly of claim 2 , wherein the first opening and the second opening have a rectangular shape in cross section.
9. The electrical bus bar assembly of claim 1 , comprising a first bus bar brace apparatus at a first location along the first horizontal bus bar, a second bus bar brace apparatus at a second location along the first horizontal bus bar, and a third bus bar brace apparatus at a third location along the first horizontal bus bar.
10. The electrical bus bar assembly of claim 1 , comprising a first bus bar brace apparatus at a first location along the first horizontal bus bar on a first side of the yoke brace apparatus, and a second bus bar brace apparatus at a second location along the first horizontal bus bar on a second side of the yoke brace apparatus.
11. A method of supporting electrical bus bars, comprising:
providing a first run-over bus bar;
providing a second run-over bus bar spaced a first distance from the first run-over bus bar;
providing a horizontal bus bar spaced a second distance from the first run-over bus bar;
supporting and maintaining the first distance between the first run-over bus bar and the second run-over bus bar with a yoke brace apparatus;
supporting and maintaining the second distance between the first run-over bus bar and the horizontal bus bar with a bus bar brace apparatus; and
supporting the first run-over bus bar to a structural component of a switchgear cabinet with a bus bar support assembly having an insulating support assembly including a bus bar-receiving opening fully encircling the first run-over bus bar.
12. An electrical bus bar assembly, comprising:
a first run-over bus bar;
a second run-over bus bar spaced a first distance from the first run-over bus bar;
a first horizontal bus bar spaced from the first run-over bus bar;
a yoke brace apparatus coupled between the first run-over bus bar and the second run-over bus bar; and
one or more bus bar brace apparatus provided to maintain a second distance between the first run-over bus bar and the first horizontal bus bar, wherein the one or more bus bar brace apparatus comprises:
a body of insulating material;
a first opening through the body receiving at least a portion of the first horizontal bus bar; and
a second opening through the body receiving the first run-over bus bar.
13. The electrical bus bar assembly of claim 12 , comprising:
an insulating sheathing wrapping about a portion of the first run-over bus bar, the insulating sheathing passing through the second opening through the body.
14. The electrical bus bar assembly of claim 12 , comprising:
an insulating spacer received inside of the second opening wherein the insulating spacer provides a layer of insulation above, below, and on one side of the first run-over bus bar.
15. The electrical bus bar assembly of claim 12 , wherein a center of the first opening and a center of the second opening are offset from one another in an X direction.
16. The electrical bus bar assembly of claim 12 , wherein a center of the first opening and a center of the second opening are offset from one another in a Z direction.
17. The electrical bus bar assembly of claim 12 , wherein the body of insulating material comprises a notch configured to abut at least a portion of a second horizontal bus bar.
18. The electrical bus bar assembly of claim 12 , wherein the first opening and the second opening have a rectangular shape in cross section.
19. An electrical bus bar assembly, comprising:
a first run-over bus bar;
a second run-over bus bar spaced a first distance from the first run-over bus bar;
a first horizontal bus bar spaced from the first run-over bus bar;
a yoke brace apparatus coupled between the first run-over bus bar and the second run-over bus bar;
one or more bus bar brace apparatus provided to maintain a second distance between the first run-over bus bar and the first horizontal bus bar; and
a first bus bar brace apparatus at a first location along the first horizontal bus bar, a second bus bar brace apparatus at a second location along the first horizontal bus bar, and a third bus bar brace apparatus at a third location along the first horizontal bus bar.
20. An electrical bus bar assembly, comprising:
a first run-over bus bar;
a second run-over bus bar spaced a first distance from the first run-over bus bar;
a first horizontal bus bar spaced from the first run-over bus bar;
a yoke brace apparatus coupled between the first run-over bus bar and the second run-over bus bar;
one or more bus bar brace apparatus provided to maintain a second distance between the first run-over bus bar and the first horizontal bus bar; and
a first bus bar brace apparatus at a first location along the first horizontal bus bar on a first side of the yoke brace apparatus, and a second bus bar brace apparatus at a second location along the first horizontal bus bar on a second side of the yoke brace apparatus.