12F390 Obsolete - 4-over-2 795 AAC Double Circuit Tangent Arms

Revision 4
May 25, 2018

 

Notes:

  1. 50' minimum pole height.
  2. Engineer must specify the size & number of down guys and anchors depending on conductor design tension, line angle, available down guy lead and span length. Refer to T&D Guideline 4-6 and Compatible Unit Sections A and G.
  3. Holes for lower arm will need to be field-drilled at 3'-1" from the center of the bracket as shown.
  4. Crossarms to be set to split the angle in the line. Guy should be set in the plane of the crossarm if possible.
  5. This assembly is intended for 795 kcmil AAC (Arbutus) primary conductor installed with a maximum working tension of 4,000 lb/Ø. For framing conductors with a maximum working tension of 2,500 lb/Ø or less refer to Assembly Unit 12F330.
  6. New overhead double circuit construction is allowed in rural areas only. Refer to T&D Guideline 4-23-7.0 — Design Practices for Constructing Double Circuit Lines.

Material List
Compatible Unit Description Quantity
I0380 Insulator, 15kV Sgl Polymer Vise-Top Insulator - 3-3/4" x 4-3/4" Wood Crossarm Mount 6
I0372 Insulator, 15kV Porcelain Sgl Horizontal Post Insulator - Pole Mount 1
R1007 Clamp, Line Post 795 - 1272 AAC/ACSR - w/ o Armor 0° - 45° Line Angle 1
X0301 Crossarm, 10' Single Fiberglass Tangent 4-Steel Pin Crossarm 2