Question Is it permissible to stub up conduits into the bottom of a stationary generator enclosure and continue the conductors ...
Question Are wire connectors that are filled with silicone Listed to splice THWN conductors in an open bottom handhole for ...
Question Does UL List LED tube lamps that are intended to replace fluorescent tubes by bypassing the fluorescent ballast and ...
Question: Is it permitted as part of the Listing of a luminaire to retrofit a T12 ballasted fluorescent luminaire with ...
Question: Does UL apply a Listing Mark to a product based on evaluation to an Outline of Investigation? Answer ...
Question Has UL Listed any cord-and-plug connected central air-conditioning units, central heating furnaces or storage tank water heaters? Answer ...
Queston When a Type 3R metal enclosure is penetrated with a conduit, can a sealing gasket be installed on the ...
Question Is all Type PLTC cable sunlight-resistant or is it sunlight-resistant only if marked? Is it evaluated for use in ...
Question Does UL have any additional information available to AHJs or installers regarding installations of photovoltaic systems, wind turbines and ...
Question When is the UL White Book published every year? Answer Historically, the UL White Book has been published in ...