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UL

Definition

UL is an abbreviation for Underwriters Laboratories Inc., a nonprofit organization that maintains and operates laboratories for the examination and testing of devices, systems, and materials relative to life, fire, and casualty hazards and crime prevention; founded in 1894 and originally sponsored by the National Board of Fire Underwriters.

Detailed Explanation

UL stands for Underwriters Laboratories Inc., a nonprofit safety organization that maintains and operates laboratories to examine and test devices, systems, and materials. Its testing addresses hazards relative to life, fire, and casualty as well as crime prevention, evaluating products against published safety standards. Founded in 1894 and originally sponsored by the National Board of Fire Underwriters, UL has long been a recognized authority on product safety in the United States.

For wire and cable, UL develops the standards and designations that define many cable types and tests products to verify they meet those requirements. A UL listing or marking indicates that a product has been evaluated to the applicable safety standard, which is widely relied upon in specification and code compliance.

In commercial and industrial systems, UL standards and listings underpin the safety and acceptance of cable and equipment. Recognizing the organization helps in understanding how cable is evaluated and designated.

At Windy City Wire, an understanding of safety certification, including UL, reflects a focus on cable that meets recognized standards. Recognizing how UL tests and lists products helps customers appreciate the basis for the safety designations carried by quality low-voltage cable.

Abbreviation / Alternate Name

UL (Underwriters Laboratories Inc.)

Regulatory Body or Governing Organization

UL (Underwriters Laboratories), a nationally recognized testing and certification organization

History

Founded in 1894, originally sponsored by the National Board of Fire Underwriters.

Applications / Use Cases

  • Testing devices, systems, and materials
  • Developing safety standards
  • Listing and certifying products
  • Defining cable designations
  • Supporting code compliance

Related Terms

  • UL Approved
  • Test Reports
  • NEC
  • Flame Retardant
  • Insulation