![direct buried in-ground cross section](https://www.hapco.com/wp-content/uploads/2021/01/no-arm-direct-buried-icon-1x1-1.jpg)
Direct Buried
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Details
FBC RSA Direct Buried
Catalog Pages with 2023 FBC Wind Speed Map
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Pole
The pole shaft will be constructed of seamless extruded tube of 6063 Aluminum Alloy per the requirements of ASTM B221. The shaft assembly shall be full-length heat treated after base weld to produce a T6 temper.
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Direct Buried Pole bottom section on 6″+ butt diameter poles will be partially flattened into an anti-rotational, oval cross section. Wire access will be provided 24″ below ground line. Soil conditions vary by site. Foundation requirements should be determined by a qualified Structural Engineer with knowledge of jobsite soil conditions.
![Direct Buried Anchorage](https://www.hapco.com/wp-content/uploads/2020/12/no-arm-direct-buried-icon.jpg)
Handhole
4″-5″ Butt Diameters – 2″ x 4″ Handhole with curved Lap Style Aluminum Door and two (2) SS Self-Tapping Attaching Screws. A Grounding Provision incorporating a tapped 1/4″-20NC hole is provided.
![](https://www.hapco.com/wp-content/uploads/2021/01/HH-2X4-500X500.jpg)
6″ Butt Diameter – Reinforced, 3″ x 5″ curved Cast Aluminum Frame (Alloy 356-T6) with Aluminum Door and two (2) SS Hex Head Screws. A Grounding Provision incorporating a 3/8″ diameter hole is provided opposite the Handhole.
![](https://www.hapco.com/wp-content/uploads/2021/01/HH-3x5-Rnd-Re-duo.jpg)
7″+ Butt Diameters – Reinforced, 4″ x 6″ curved Cast Aluminum Frame (Alloy 356-T6) with Aluminum Door and two (2) SS Hex Head Screws. Reinforced Frame will contain a tapped 3/8″-16NC Grounding Provision.
![](https://www.hapco.com/wp-content/uploads/2021/01/HH-4X6-500X500.jpg)
Vibration Damper
When determined necessary by Hapco, a Vibration Damper will be factory-installed inside the pole shaft. Customer specification of the damper is available.
Vibration Dampers
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Mounting Designation
Side Drill Mount
For Side Drill Mount applications specify luminaire type, quantity and orientation. A luminaire drilling template must be supplied at time of order.
![](https://www.hapco.com/wp-content/uploads/2021/01/RTA-Cap-alpha.png)
Tenon Mount – Welded
For Tenon Mount applications specify both Tenon diameter (2.375″, 2.875″, 3.5″, etc.) and length (3″, 4″, etc.).
![round aluminum welded tenon top](https://www.hapco.com/wp-content/uploads/2021/01/RTA-Tenon-alpha.png)
Satin Aluminum Finish
Pole surface will contain a uniform Brushed Aluminum natural finish. Finish to be achieved utilizing specially formulated abrasives in a multi-pass, rotary sanding operation.
Powder Coat Finish
Coating material will be a thermosetting polyester AAMA 2604 Super Durable powder electrostatically applied, oven cured and bonded in a closed loop, automated system. Minimum thickness of finish will be two (2) mils. Hapco’s Powder Coat Finish Warranty on aluminum poles is five (5) years.
Finish Options
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Pole Shaft Warranty
Hapco warrants its aluminum pole assemblies for their lifetime to be free of defects in material and workmanship.
Hapco Lifetime Pole Assembly Warranty
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Specification Drawings – RSA No Arm Direct Bury
Click on the Product No. to download interactive PDF specification drawing.