UL 797 covers steel electrical metallic tubing, or EMT, used as a metal raceway for electrical wires and cables.
For manufacturers, labs, and buyers, this is usually a product-verification reference rather than one isolated bench test. If you need help matching the cited requirement to a practical equipment path, contact our team.
UL 797 Electrical Metallic Tubing – Steel
UL 797 is a UL safety standard for steel electrical metallic tubing, or EMT, used as a metal raceway for electrical wires and cables. It is used where electrical raceway products need to meet a recognized product requirement.
The exact edition, product type, trade size, construction, and marked use condition should control the inspection and test setup.
Quick Definition
Document type: UL product safety standard.
Main focus: electrical metallic tubing – steel.
Primary equipment path: wall-thickness tools, diameter gauges, coating or corrosion exposure support, bend or mechanical-check fixtures, and documentation software.
What This Standard Covers
UL 797 addresses product-level requirements for steel electrical metallic tubing, or EMT, used as a metal raceway for electrical wires and cables, including practical checks around construction, dimensions, markings, and performance where required.
Because the standard is product-focused, the equipment path depends on the characteristic being checked rather than one universal test machine.
Why This Standard Matters in Testing
Electrical raceway products protect and route conductors, so product consistency and safety requirements matter in installation and certification workflows.
When UL 797 is cited, the lab setup should match the exact product form, trade size range, finish or material system, and edition named by the requirement.
Common Materials, Product Types, or Applications Covered
The standard is focused on electrical raceway products and related components.
Common material or product areas: steel EMT, steel elbows, protective coatings, conduit samples by trade size, and related raceway configurations.
Common application questions: whether the product meets the construction, dimensional, marking, and performance expectations named by the cited UL requirement.
Common Test or Verification Workflow
A typical workflow starts with product identification and sample selection, followed by inspection, dimensional measurement, conditioning, and any method-specific performance checks.
The final setup should be driven by the exact UL edition and the product configuration being evaluated.
Workflow focus: product construction, dimensional verification, marked ratings, conditioning, and reporting.
Equipment Commonly Used for This Standard
UL 797 work can involve several equipment families because the product may need dimensional, mechanical, environmental, or finish-related verification.
Common equipment families: wall-thickness tools, diameter gauges, coating or corrosion exposure support, bend or mechanical-check fixtures, and documentation software.
Selection focus: confirm trade size range, material or coating system, product type, marked use conditions, and exact cited edition before selecting equipment. If you are comparing equipment configurations for this workflow, request a quote.
How to Read This Designation or Revision
UL 797 is the fixed UL designation for this product standard.
A citation may include an edition or revision date, and that version should control the test setup and reporting language.
Related Standards, Methods, or Frameworks
UL 6, UL 1242, UL 360, UL 651, and UL 514B are related electrical raceway or fittings references but cover different product scopes.
Need Help With UL 797 Equipment Planning?
If your requirement cites UL 797 and you need to define the right equipment scope, request a quote.
