New requirements for field-applied labels have been added to 110.21. Article 110 Requirements for Electrical Installations Part I. General 110.21 Markings (A) Manufacturer’s Markings. The manufacturer’s name, trademark, or other descriptive marking must be placed on all electrical equipment and, where required by the Code, markings such as voltage, current, wattage, or other ratings must be provided. All marking must have sufficient durability to withstand the environment ...

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