RTA Single Mast Breakaway T-Base Round Tapered Aluminum Pole

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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.

Base Style
Cast Aluminum Transformer Base (T-Base) of Alloy 356-T6 with Aluminum Door and Stainless Steel Hex Head Screw. FHWA Approved Breakaway.

Handhole
6″-10″ Butt Diameters – Tapered Door Opening (9-3/4″ W Base x 9-1/4″ W Top x 11-3/4″ H) with Flush Mount Aluminum Cover and Stainless Steel Hex Head Screw. Grounding Provisions tapped 1/4″-20NC and 1/2″-13NC are provided.
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Anchorage
Base Anchorage includes four (4) L-shaped Steel Anchor Bolts conforming to AASHTO M314-90 Grade 55, four (4) each Heavy-Duty Flat Washers, Lock Washers, and Hex Nuts (all components Galvanized Steel). Ten inches (10″) of threaded end will be galvanized per ASTM A153. Top Connecting Hardware includes four (4) each 1″-8NC x 3-3/4″ Hex Head Bolts, Flat Washers, Heavy-Duty Flat Washers, Lock Washers, and Hex Nuts (all components Galvanized Steel). A bolt circle template will be provided.

Base and Anchorage Details
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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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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 - RTA Single Mast Breakaway T-Base

Download interactive PDF specification drawings of standard RTA Single Mast Breakaway T-Base Poles below.

Product No. | Pole Height | Butt Dia. | Wall Thickness | Arm Length | Old Product No.
RTA20C7BFM14-** [ 20′ ] 7″ Butt Dia., 0.156” Wall, [ 4′ ] 23-092
RTA20C7BFM16-** [ 20′ ] 7″ Butt Dia., 0.156” Wall, [ 6′ ] 23-095
RTA20C7BFM18-** [ 20′ ] 7″ Butt Dia., 0.156” Wall, [ 8′ ] 23-097
Product No. | Pole Height | Butt Dia. | Wall Thickness | Arm Length | Old Product No.
RTA25C7BFM14-** [ 25′ ] 7″ Butt Dia., 0.156” Wall, [ 4′ ] 23-362
RTA25C7BFM16-** [ 25′ ] 7″ Butt Dia., 0.156” Wall, [ 6′ ] 23-365
RTA25C7BFM18-** [ 25′ ] 7″ Butt Dia., 0.156” Wall, [ 8′ ] 23-367

RTA25D7BFM14-** [ 25′ ] 7″ Butt Dia., 0.188” Wall, [ 4′ ] 23-292
RTA25D7BFM16-** [ 25′ ] 7″ Butt Dia., 0.188” Wall, [ 6′ ] 23-295
RTA25D7BFM18-** [ 25′ ] 7″ Butt Dia., 0.188” Wall, [ 8′ ] 23-297

RTA25D8BFM16-** [ 25′ ] 8″ Butt Dia., 0.188” Wall, [ 6′ ] 23-305
RTA25D8BFM18-** [ 25′ ] 8″ Butt Dia., 0.188” Wall, [ 8′ ] 23-307

Product No. | Pole Height | Butt Dia. | Wall Thickness | Arm Length | Old Product No.
RTA30C7BFM14-** [ 30′ ] 7″ Butt Dia., 0.156” Wall, [ 4′ ] 23-692

RTA30C8BFM14-** [ 30′ ] 8″ Butt Dia., 0.156” Wall, [ 4′ ] 23-642
RTA30C8BFM16-** [ 30′ ] 8″ Butt Dia., 0.156” Wall, [ 6′ ] 23-645
RTA30C8BFM18-** [ 30′ ] 8″ Butt Dia., 0.156” Wall, [ 8′ ] 23-647

RTA30D8BFM14-** [ 30′ ] 8″ Butt Dia., 0.188” Wall, [ 4′ ] 23-582
RTA30D8BFM16-** [ 30′ ] 8″ Butt Dia., 0.188” Wall, [ 6′ ] 23-585
RTA30D8BFM18-** [ 30′ ] 8″ Butt Dia., 0.188” Wall, [ 8′ ] 23-587

Product No. | Pole Height | Butt Dia. | Wall Thickness | Arm Length | Old Product No.
RTA35D8BFM14-** [ 35′ ] 8″ Butt Dia., 0.188” Wall, [ 4′ ] 23-862
RTA35D8BFM16-** [ 35′ ] 8″ Butt Dia., 0.188” Wall, [ 6′ ] 23-865
RTA35D8BFM18-** [ 35′ ] 8″ Butt Dia., 0.188” Wall, [ 8′ ] 23-867

RTA35E8BFM14-** [ 35′ ] 8″ Butt Dia., 0.219” Wall, [ 4′ ] 23-872
RTA35E8BFM16-** [ 35′ ] 8″ Butt Dia., 0.219” Wall, [ 6′ ] 23-875
RTA35E8BFM18-** [ 35′ ] 8″ Butt Dia., 0.219” Wall, [ 8′ ] 23-877

Product No. | Pole Height | Butt Dia. | Wall Thickness | Arm Length | Old Product No.
RTA40D8BFM14-** [ 40′ ] 8″ Butt Dia., 0.188” Wall, [ 4′ ] 50702-041
RTA40D8BFM16-** [ 40′ ] 8″ Butt Dia., 0.188” Wall, [ 6′ ] 50702-001
RTA40D8BFM18-** [ 40′ ] 8″ Butt Dia., 0.188” Wall, [ 8′ ] 50702-002

RTA40E8BFM14-** [ 40′ ] 8″ Butt Dia., 0.219” Wall, [ 4′ ] 50702-043
RTA40E8BFM16-** [ 40′ ] 8″ Butt Dia., 0.219” Wall, [ 6′ ] 50702-005
RTA40E8BFM18-** [ 40′ ] 8″ Butt Dia., 0.219” Wall, [ 8′ ] 50702-006

RTA40D1CFM14-** [ 40′ ] 10″ Butt Dia., 0.188” Wall, [ 4′ ] 50702-047
RTA40D1CFM16-** [ 40′ ] 10″ Butt Dia., 0.188” Wall, [ 6′ ] 50702-013
RTA40D1CFM18-** [ 40′ ] 10″ Butt Dia., 0.188” Wall, [ 8′ ] 50702-014

Product No. | Pole Height | Butt Dia. | Wall Thickness | Arm Length
RTA45D8BFM14-** [ 45′ ] 8″ Butt Dia., 0.188” Wall, [ 4′ ]
RTA45D8BFM16-** [ 45′ ] 8″ Butt Dia., 0.188” Wall, [ 6′ ]
RTA45D8BFM18-** [ 45′ ] 8″ Butt Dia., 0.188” Wall, [ 8′ ]

RTA45E8BFM14-** [ 45′ ] 8″ Butt Dia., 0.219” Wall, [ 4′ ]
RTA45E8BFM16-** [ 45′ ] 8″ Butt Dia., 0.219” Wall, [ 6′ ]
RTA45E8BFM18-** [ 45′ ] 8″ Butt Dia., 0.219” Wall, [ 8′ ]

RTA45D1CFM14-** [ 45′ ] 10″ Butt Dia., 0.188” Wall, [ 4′ ]
RTA45D1CFM16-** [ 45′ ] 10″ Butt Dia., 0.188” Wall, [ 6′ ]
RTA45D1CFM18-** [ 45′ ] 10″ Butt Dia., 0.188” Wall, [ 8′ ]

RTA45E1CFM14-** [ 45′ ] 10″ Butt Dia., 0.219” Wall, [ 4′ ]
RTA45E1CFM16-** [ 45′ ] 10″ Butt Dia., 0.219” Wall, [ 6′ ]
RTA45E1CFM18-** [ 45′ ] 10″ Butt Dia., 0.219” Wall, [ 8′ ]