Double Arm Tangent Crossarm Assemblies

The following tables are intended to assist in ordering a variety of Tangent Crossarm Assemblies utilizing many common crossarm sizes and hardware components. BROOKS is not limited by the sizes or styles noted. For additional information regarding designs, strengths, applications, etc., please contact BROOKS' Engineering Department.

A. Pole Spacing (Feet and Inches)
B. Assembly Bolt Diameters from Table 3
C. Mounting Hole Sizes from Table 4
D. Arm Size from Table 1
E. Spacer Style from Table 2
F. Phase Spacing (Feet and Inches)

 

Table 1 - Common sizes for solid sawn and/or laminated crossarms

Solid Sawn Code Size A 2-5/8" x 9-1/2" B 3-5/8" x 7-1/2" C 3-5/8" x 8-1/2" D 3-5/8" x 9-1/2" E 3-5/8" x 11-1/2" F 5-1/2" x 7-1/2" G 5-5/8" x 7-1/2"

Laminated Code Size J 2-5/8" x 9-1/2" K 3-1/8" x 7-1/2" L 3-1/8" x 9" M 3-1/8" x 10-1/2" N 3-5/8" x 7-1/2" O 3-5/8" x 8-1/2" P 3-5/8" x 9-1/2" Q 3-5/8" x 11-1/2" R 5-1/8" x 7-1/2" S 5-1/8" x 9" T 5-1/8" x 10-1/2" U 5-1/2" x 7-1/2" V 5-5/8" x 7-1/2" W 6-3/4" x 7-1/2"

Table 2 - Spacer Fittings Code Spacer Style Adjustments 1 5860 8-3/4" to 12-3/4" 2 5861 10-3/4" to 14-3/4" 3 5862 12-3/4" to 16-3/4" 4 5870 8-3/4" to 12-3/4" 5 5871 10-3/4" to 14-3/4" 6 5872 12-3/4" to 16-3/4" 7 5840 8-1/2" to 12-1/2" 8 5841 10-1/2" to 14-1/2" 9 5842 12-1/2" to 16-1/2"

Table 3 - Spacer Fitting Mounting Bolt Size Code Vertical Horizontal 45 1/2" 5/8" 46 1/2" 3/4" 55 5/8" 5/8" 56 5/8" 3/4" 66 3/4" 3/4"

Table 4 - Mounting Bolt Size Code Bolt Hole 6 3/4" 13/16" 7 7/8" 15/16" 8 1" 1-1/16"

Double Arm Ordering Code

D	X	X	-	XX	X	-	XXX	-	XXX	*
"D" (Double Arm Assembly)	Crossarm Size (Table 1)	Type of Spacer Fitting (Table 2)		Assembly Bolt Sizes (Table 3)	Pole Mounting Bolt Hole Diameter (Table 4)		Pole Spacing (Feet and Inches)		Phase Spacing (Feet and Inches)

Example

DD1-457-156-156

• Double Crossarm Assembly
• 3-5/8" x 9-1/2" x 32' 0" Solid Sawn Crossarms
• Assembled with (3) 5860 Spacer Fittings (8-3/4" to 12-3/4" adjustment) using 1/2" vertical and 5/8" Horizontal Mounting Bolts.
• Drilled for 7/8" Arm Mounting Bolts.
• 15'-6" C/C Pole Spacing
• 15'-6" Phase Spacing.

Pole mounting hardware is not furnished standard as part of the assembly and should be ordered separately.
* To purchase a side arm, bored but less the assembly hardware, add a "W" to the assembly number Ordering Code.