Which UL Standard is used to evaluate and list receptacles?

The correct choice focuses on UL 498, which is the standard specifically established for the evaluation and listing of receptacles. This standard encompasses various safety criteria and performance metrics necessary for ensuring that receptacles can safely handle both general and specific electrical loads without posing a risk to users or property.

UL 498 outlines requirements for aspects such as construction, performance under different conditions, and potential hazards. The standard covers a wide range of receptacles including those for general use, special applications, and even those designed for outdoor environments. Consequently, compliance with UL 498 is critical for manufacturers aiming to certify their receptacles for safe market use.

Other options serve different purposes: UL 1778 is associated with uninterruptible power systems, UL 60601 relates to medical electrical equipment, and UL 1310 covers power units for use with IT equipment. These standards, while essential in their respective domains, do not pertain to the specific evaluation and listing of receptacles, making them unsuitable for the question asked.