single davit arm t-base

T-Base

single davit arm t-base catalog page

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Details

RTA Single Davit Arm T-Base Pole Specifications

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.

T-Base Cover On

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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T-base anchor bolts in the ground

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 Davit Arm T-Base

Click on the Product No. to download interactive PDF specification drawing.

Pole HeightProduct No.Butt DiaWallOld Product No.
20′RTA20C7BFD14-**7″0.156”[ 4′ ] 43-025
RTA20C7BFD16-**7″0.156”[ 6′ ] 43-026
RTA20C7BFD18-**7″0.156”[ 8′ ] 43-027
25′RTA25C7BFD14-**7″0.156”[ 4′ ] 43-103
RTA25C7BFD16-**7″0.156”[ 6′ ] 43-104
RTA25C7BFD18-**7″0.156”[ 8′ ] 43-105
RTA25D7BFD14-**7″0.188”[ 4′ ] 43-079
RTA25D7BFD16-**7″0.188”[ 6′ ] 43-080
RTA25D7BFD18-**7″0.188”[ 8′ ] 43-081
30′RTA30C7BFD14-**7″0.156”[ 4′ ] 43-145
RTA30C7BFD16-**7″0.156”[ 6′ ] 43-146
RTA30C7BFD18-**7″0.156”[ 8′ ] 43-147
RTA30D7BFD14-**7″0.188”[ 4′ ] 43-151
RTA30D7BFD16-**7″0.188”[ 6′ ] 43-152
RTA30D7BFD18-**7″0.188”[ 8′ ] 43-153
RTA30C8BFD14-**8″0.156”[ 4′ ] 43-175
RTA30C8BFD16-**8″0.156”[ 6′ ] 43-176
RTA30C8BFD18-**8″0.156”[ 8′ ] 43-177
RTA30C8BFD1A-**8″0.156”[ 10′ ] 43-178
RTA30D8BFD14-**8″0.188”[ 4′ ] 43-157
RTA30D8BFD16-**8″0.188”[ 6′ ] 43-158
RTA30D8BFD18-**8″0.188”[ 8′ ] 43-159
RTA30D8BFD1A-**8″0.188”[ 10′ ] 43-160
35′RTA35C8BFD14-**8″0.156”[ 4′ ] 43-223
RTA35C8BFD16-**8″0.156”[ 6′ ] 43-224
RTA35C8BFD18-**8″0.156”[ 8′ ] 43-225
RTA35D8BFD14-**8″0.188”[ 4′ ] 43-229
RTA35D8BFD16-**8″0.188”[ 6′ ] 43-230
RTA35D8BFD18-**8″0.188”[ 8′ ] 43-231
RTA35D8BFD1A-**8″0.188”[ 10′ ] 43-232
RTA35E8BFD14-**8″0.219”[ 4′ ] 43-235
RTA35E8BFD16-**8″0.219”[ 6′ ] 43-236
RTA35E8BFD18-**8″0.219”[ 8′ ] 43-237
RTA35E8BFD1A-**8″0.219”[ 10′ ] 43-238
40′RTA40D8BFD14-**8″0.188”[ 4′ ] 43-325
RTA40D8BFD16-**8″0.188”[ 6′ ] 43-326
RTA40D8BFD18-**8″0.188”[ 8′ ] 43-327
RTA40E8BFD14-**8″0.219”[ 4′ ] 43-331
RTA40E8BFD16-**8″0.219”[ 6′ ] 43-332
RTA40E8BFD18-**8″0.219”[ 8′ ] 43-333
RTA40E8BFD1A-**8″0.219”[ 10′ ] 43-334
RTA40F8BFD14-**8″0.250”[ 4′ ] 43-337
RTA40F8BFD16-**8″0.250”[ 6′ ] 43-338
RTA40F8BFD18-**8″0.250”[ 8′ ] 43-339
RTA40F8BFD1A-**8″0.250”[ 10′ ] 43-340
45′RTA45F1CFD14-**10″0.250”[ 4′ ] 43-433
RTA45F1CFD16-**10″0.250”[ 6′ ] 43-434
RTA45F1CFD18-**10″0.250”[ 8′ ] 43-435
RTA45F1CFD1A-**10″0.250”[ 10′ ] 43-436