Is there a UL Standard for plant oil extraction equipment, and does UL Certify (List) this type of equipment?
The 2020 National Electrical Code© (NEC©) contains many changes regarding the use and limitations of reconditioned or rebuilt equipment. How does UL identify if the equipment is Certified (Listed) as reconditioned or rebuilt?
I have seen Listed LED tube lamps that incorporate a battery backup. Can they be used as emergency lighting or to retrofit a fluorescent or LED luminaire to convert it to an LED emergency luminaire?
To address the need for cord-and-plug-connected multiple receptacle devices to provide power to medical equipment in patient care areas of health care facilities, UL Certifies (Lists) cord-and-plug-connected health care facility outlet assemblies (HCOA).
Are there any Certified (Listed) products available to meet new PV rapid shutdown requirements inside the array boundary?
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Do I have to use a power supply/driver that is specifically Listed as an LED driver or low voltage lighting power supply? 2017 NEC 411.4(B)(2) just requires a Listed power supply. Listed for what?
It is the responsibility of the authority having jurisdiction (AHJ) to determine whether any field modifications are significant enough to require a UL staff member to evaluate the modified product. UL can assist the AHJ in making that determination.
Q. I know cord and plug-connected appliances are tested for leakage current but are hard-wired appliances tested for leakage current, as well?