Below is an outline of various mechanical testing performed by CMT (or 3rd parties) for performance verification of the CMT composite product lines:
Static Bending (Horizontal Loading) Testing:
CMT has performed static bending tests following the basic procedures of ASTM D1036 for T&D poles and ANSI C136.2 for lighting standards.
Bolt Torque Test:
CMT has performed Bolt Torque Tests for determination of the maximum permissible bolting torque allowable during installation of hardware items on CMT composite poles.
Bolt Pull Through Test:
CMT has performed Bolt Pull Through Tests. Utilizing a standard 5/8” bolt and a standard 2-1/8 x 2-1/8 x 1/8 square steel washer, pull through values were measured.
Poles are tested in accordance to ASTM D635. Specimens must cease to burn before the gauge mark of 100 mm (3.9 in.) is reached.
Accelerated UV Testing:
The surface shall be tested for a minimum of 5,000 hours of accelerated testing in accordance with ASTM G154 (UV-A lamp 340 NM wavelength 130 degrees Farenheit, cycle lamp 4 hours on, 4 hours off)
Direct Load Shear Test (guy plate test, transformer load test):
CMT has performed direct load shear tests for determination of the allowable shear load due to guy plates or transformer mounting brackets.
Field Drillability Test:
All CMT poles have been demonstrated to be drillable for field modification utilizing a standard twist bit carbide tipped with a portable high speed drill.
Step Bolt Strength Test:
CMT has performed step bolt strength tests on the standard attachment clip and step bolts provided by CMT.