Tex-1120-T, Material and Construction Characteristics of
Lighting Assemblies
Contents:
Section 1 — Overview..............................................................................................................2
Section 2 — Sampling ..............................................................................................................3
Section 3 — Safety Note ..........................................................................................................4
Section 4 — Procedures............................................................................................................5
Section 5 — Consecutive Testing.............................................................................................6
Section 6 — Completing Lighting Assemblies ........................................................................7
Section 7 — Failure of Assemblies ..........................................................................................8
Section 8 — Archived Versions ...............................................................................................9
Texas Department of Transportation
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 1 — Overview
Section 1
Overview
Effective Dates: June 2000–April 2008 (refer to 'Archived Versions' for earlier versions).
This method covers the procedures for evaluating the material and construction
characteristics of lighting assemblies. The evaluation of lighting assemblies shall be
according to pertinent specification.
This method replaces Test Method "Tex-870-B, Material and Construction Characteristics
of Lighting Assemblies."
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 2 — Sampling
Section 2
Sampling
Sampling of lighting assemblies shall conform to the procedures outlined in "Tex-1110-T,
Sampling Lighting Assemblies."
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 3 — Safety Note
Section 3
Safety Note
Refer to 'Safety Note' in the "Overview" of this manual.
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 4 — Procedures
Section 4
Procedures
Receiving Lighting Assemblies
The following table details the steps for receiving lighting assemblies.
Step
1
2
3
4
Receiving Lighting Assemblies
Action
Upon receipt of lighting assemblies, open all boxes, remove each assembly, and check for
shipping damage (broken lenses, missing parts, bent or dented metal work).
With the information on Form 202, "Identification of Material Samples," assign each lot a
laboratory number.
Write laboratory number on each assembly box.
Arrange assemblies in logical order in storage area until ready for testing.
Evaluating Lighting Assemblies
The following table details the steps for evaluating the construction characteristics of
lighting assemblies.
Step
1
2
3
4
5
Evaluating Lighting Assemblies
Action
Remove all power from test bench.
Remove assembly from shipping box, assemble (if necessary), and place on test bench.
Visually inspect the interior and exterior surfaces and components to verify compliance with
pertinent specification.
Verify that assembly contains the proper stickers and warnings.
Record the assembly ballast voltage requirements on the test sheet.
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 5 — Consecutive Testing
Section 5
Consecutive Testing
Test Method "Tex-1130-T, Ballast of Lighting Assemblies," normally follows testing for
Test Method "Tex-1120-T, Material and Construction Characteristics of Lighting
Assemblies." If this is the case, then replacing each assembly in shipping box is not
necessary.
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 6 — Completing Lighting Assemblies
Section 6
Completing Lighting Assemblies
Follow the 'Tagging/Labeling, Documenting and Shipping General Requirements' as
detailed in the "Preface" of this manual.
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 7 — Failure of Assemblies
Section 7
Failure of Assemblies
Any assembly that fails to meet specification will be rejected and the lot represented by that
assembly shall also be rejected.
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Tex-1120-T, Material and Construction
Characteristics of Lighting Assemblies
Section 8 — Archived Versions
Section 8
Archived Versions
Archived versions of Test Method "Tex-1120-T, Material and Construction Characteristics
of Lighting Assemblies" are available through the following links:
♦
Click on 1120-0899 for the test procedure effective August 1999 through May 2000.
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