Cut Sheet

38
Technical Data TD01701001E
Effective December 2013
UL low voltage busway
Pow-R-Way III
EATON www.eaton.com
Physical data (continued)
Figure 55. Sway Brace
Sway brace
Sway brace brackets provide a provision to brace the busway run at
a 45-degree angle, restricting the suspended busway from swinging.
Sway braces can be ordered as part number BVC1102G01 regardless
of height of busway dimension “A”.
Vertical hangers (Figure 56 and Figure 57)
When busway is to be installed vertically, a spring suspension type
vertical hanger should be used. Vertical hangers are not provided
unless specified.
This unique hanger equalizes the weight of vertically mounted
busway along all supports. A vertical hanger must be used on
each floor and at the end of the bus run on the last floor.
The maximum span permitted by UL on vertical hangers is 16 feet
(4.9m). Intermediate hangers are required for floor heights exceeding
16 feet (4.9m).
Table 55. Edgewise Vertical Hangers (F and F-Opposite Sides)
Conductor
Configuration
Busway
Height
Hangers on “F” and “F”
Opposite Sides
Inches (mm) A Inches (mm)
Figure 57
Configuration
3WH/4WH 4.38 (111.3) 4.72 (119.9) A
3WG/3WHG/4WG/4WHG 4.50 (114.3) 4.91 (124.7) A
3WI/4WI 4.56 (115.8) 4.91 (124.7) A
4WHN 4.92 (125.0) 5.25 (133.4) A
4WNG/4WNHG 5.05 (128.3) 5.44 (138.2) A
Figure 56. Typical Installation
Table 56. Flatwise Vertical Hangers (T and T-Opposite Sides)
UL 857
Ampere Rating Busway Width
Hangers on “T” and
“T” Opposite Sides
Cu Al Inches (mm) A Inches (mm)
Figure 57
Configuration
225 225 4.75 (120.7) 4.62 (117.3) B
400 400 4.75 (120.7) 4.62 (117.3) B
600 600 4.75 (120.7) 4.62 (117.3) B
800 — 4.75 (120.7) 4.62 (117.3) B
1000 — 5.38 (136.7) 5.25 (133.4) B
1200 800 5.88 (149.4) 5.75 (146.1) B
1350 1000 6.38 (162.1) 6.25 (158.8) B
1600 1200 7.38 (187.5) 7.25 (184.2) B
2000 1350 8.64 (219.5) 8.50 (215.9) B
— 1600 9.40 (238.8) 9.25 (235.0) C
2500 2000 11.17 (283.7) 11.06 (280.9) C
3200 — 16.14 (410.0) 16.00 (406.4) D
4000 2500 18.64 (473.5) 18.50 (469.9) D
— 3200 20.16 (512.1) 20.06 (510.0) D
5000 4000 23.70 (602.0) 23.59 (600.0) D
Figure 57. Vertical Hangers
A
Edgewise
(1 Bar per Phase)
Flatwise
(1 Bar per Phase)
Flatwise
(2 Bar per Phase)
Configuration A
(1 Bar per Phase)
Configuration B
(1 Bar per Phase)
A
A
A
Configuration C
(1 Bar per Phase)
Configuration D
(2 Bar per Phase)
A