UL RP 121203-2021 pdf free download.Recommended Practice for Portable/Personal Electronic Products Suitable for Use in Class I, Division 2, Class I, Zone 2, Class II, Division 2, Class III, Division 1, Class III, Division 2, Zone 21 and Zone 22 Hazardous (Classified) Locations. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3 Reference Publications 3.1 Products covered by this guidance document shall comply with the referenced installation codes and standards noted in this clause as plicable. 3.2 Where reference is made to any Standards, such reference shall be considered to refer to the latest editions and revisions thereto available at the time of printing unless otherwise specified. FM 60079-29-2, Explosive Atmospheres – Part 29-2: Gas Detectors – Selection, Installation, Use and Maintenance ofDetectors forFlammable Gases and Oxygen ITU-R BS.561.2, Definitions ofRadiation in LF, MF and HF broadcasting Bands NFPA 51B, Standard forFire Prevention During Welding, Cutting, and OtherHot Work NFPA 70, National Electrical Code® OSHA Regulation, General Requirements, SubPart S, Electrical 29CFR1910 UL 783, Electric Flashlights and Lanterns forUse in Hazardous (Classified) Locations UL 121201, Nonincendive Electrical Equipment forUse in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations UL 60079 Series, Explosive Atmospheres UL 60079-29-2, Explosive Atmospheres – Part 29-2: Gas Detectors – Selection, Installation, Use and Maintenance ofDetectors forFlammable Gases and Oxygen 4 Glossary 4.1 For the purpose of this recommended practice, the following definitions apply. 4.2 APPROVED – Acceptable to the authority having jurisdiction. 4.3 AUTHORITY HAVING JURISDICTION (AHJ) – The organization, office or individual that has the responsibility and authority for approving equipment, installations, or procedures. 4.4 BATTERY – An assembly consisting of one or more cells. When multiple cells are connected to each other, they to increase the voltage or capacity. 4.5 BUTTON CELL – Small round non-rechargeable cell, where the overall height is less than the diameter. 4.6 CELL – An assembly of electrodes and electrolytes which constitutes the smallest electrical unit of a battery. 4.7 CERTIFIED – Equipment that bears a label, tag, or other record of certification that the equipment has been tested and found by an OSHA Nationally Recognized Testing Laboratory (NRTL) to meet nationally recognized standards. This is also referred to as listed (see 4.13) and labeled (see 4.12). 4.8 EQUIPMENT, PERSONAL – Equipment intended to be worn by and to...
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