![]() ![]() What: Field or factory marking that warns qualified persons of potential electric arc flash hazards. ![]() This label must be applied as follows:Įlectrical equipment included: Switchboards, switchgear, enclosed panelboards, industrial control panels, meter socket enclosures, and motor control centersĬonditions: Equipment that is likely to require examination, adjustment, servicing, or maintenance while energized The requirement in (A) is for a general marking that an electrical hazard exists. This section is divided into two first level subdivisions as follows: (A) General If switchboards, panelboards, loadcenters, and motor control centers were individually marked with the incident energy, the personnel would easily know what type of protective clothing to wear, because its rating is based upon the available incident energy in calories per square centimeter.” Most of these serious accidents can be eliminated or significantly reduced if the electricians wear the proper type of protective clothing. The substantiation used during that code cycle noted that “ Significant number of electricians are being seriously burned and often killed from an accidental electrical flash while working equipment ‘hot’. ![]() Keep in mind that this was the same year that IEEE 1584, “Guide for Performing Arc-Flash Hazard Calculations”, was published. The submitter was working to achieve a marking of incident energy. The goal of the submitter was not directly achieved with the new requirements of 110.16 as the Code making panel debated and arrived at the marking of a hazard warning in this section instead of an actual arc flash label which was being sought by the submitter. Available incident energy and the corresponding working distance, or arc flash PPE category in Table 130.7 (C)(15)(A)(b) or Table 130.7(C)(15)(B) for the equipment, but not both.Įxample of an Arc Flash Label containing the NFPA 70E required elements below.Section 110.16 became a part of the NEC with its introduction into the 2002 version of the NEC.The 2018 NFPA 70E® goes into further detail about the labeling requirements in Article 130.5 (H) Equipment Labeling:Įlectrical Equipment such as switchboards, panelboards, industrial control panels, meter socket enclosures, and motor control centers that are in other than dwelling units and are likely to require examination, adjustment, servicing, or maintenance while energized shall be marked with a label containing the following information: The marking shall be located so as to be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment."Įquipment labeling is the responsibility of the employer when any electrical equipment must require examination, adjustment, servicing, or maintenance while energized. "Electrical Equipment, such as switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control centers that is in other than dwelling occupancies and is likely to require examination, adjustment, servicing, or maintenance while energized shall be field marked or factory marked to warn qualified persons of potential electric arc flash hazards. What are the equipment labeling requirements?Įquipment labeling requirements are detailed in both the National Electrical Code (NEC) NFPA 70® as well as in the 2018 NFPA 70E®. ![]() Of these three organizations, NFPA provides the most comprehensive standard for safety-related work practices for employers to implement and provide a safe working area for employees relative to the hazards arising from the use of electricity. There are multiple national organizations that provide guidelines and standards on the risks and prevention of electrical related hazards in the work place. Exposure to these conditions burns the skin directly, may cause a variety of serious injuries and can even result in death. The temperatures can reach as high as 35,000☏. An Arc Flash is an electric current passing through air between ungrounded conductors or between ungrounded conductors and grounded conductors resulting in an explosive burst of heat, light and a pressure wave. ![]()
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