08-11-2011 JLL
Electrical Work and PPE
“HOT WORK” IS TO BE THE EXCEPTION NOT COMMON PRACTICE IN THE WORK PLACE ACCORDING TO OSHA. HOT WORK = 50VAC OR GREATER NOT LOCKED OUT
1910.333(a)(1)
"Deenergized parts." Live parts to which an employee may be exposed shall be deenergized before the employee works on or near them, unless the employer can demonstrate that deenergizing introduces additional or increased hazards or is infeasible due to equipment design or operational limitations. Live parts that operate at less than 50 volts to ground need not be deenergized if there will be no increased exposure to electrical burns or to explosion due to electric arcs.
Note 1: Examples of increased or additional hazards include interruption of life support equipment, deactivation of emergency alarm systems, shutdown of hazardous location ventilation equipment, or removal of illumination for an area.
Note 2: Examples of work that may be performed on or near energized circuit parts because of infeasibility due to equipment design or operational limitations include testing of electric circuits that can only be performed with the circuit energized and work on circuits that form an integral part of a continuous industrial process in a chemical plant that would otherwise need to be completely shut down in order to permit work on one circuit or piece of equipment.
Note 3: Work on or near deenergized parts is covered by paragraph (b) of this section.
UNLESS IT IS LOCKED OUT, IT’S CONSIDERED “ENERGIZED” (EVEN IS POWER IS OFF) AND REQUIRES VOLTAGE RATED PPE
1910.333(c)(2)
"Work on energized equipment." Only qualified persons may work on electric circuit parts or equipment that have not been deenergized under the procedures of paragraph (b) of this section. Such persons shall be capable of working safely on energized circuits and shall be familiar with the proper use of special precautionary techniques, personal protective equipment, insulating and shielding materials, and insulated tools.
1910.333(b)(1)
Conductors and parts of electric equipment that have been deenergized but have not been locked out or tagged in accordance with paragraph (b) of this section shall be treated as energized parts, and paragraph (c) of this section applies to work on or near them.
PPE MUST BE PROVIDED TO THE INDIVIDUAL AND MAINTAINED/TESTED IN ACCORDANCE TO NEC OR RELEVANT STANDARDS, INCLUDING NFPA 70E BY THE EMPLOYER OR BE IN VIOLATION OF OSHA’S “GENERAL DUTY” CLAUSE.
OSH Act “General Duty Clause” - SEC. 5. Duties
http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_id=2743&p_table=OSHACT
1970 SEC. 5. Duties
(a) Each employer --
(1) shall furnish to each of his employees employment and a place of employment which are free from recognized hazards that are causing or are likely to cause death or serious physical harm to his employees;
1910.9(a)
Personal protective equipment. Standards in this part requiring the employer to provide personal protective equipment (PPE), including respirators and other types of PPE, because of hazards to employees impose a separate compliance duty with respect to each employee covered by the requirement. The employer must provide PPE to each employee required to use the PPE, and each failure to provide PPE to an employee may be considered a separate violation.
1910.335(a)(1)(i)
Employees working in areas where there are potential electrical hazards shall be provided with, and shall use, electrical protective equipment that is appropriate for the specific parts of the body to be protected and for the work to be performed.
Hot Gloves
1910.137(a)(2)(i)
Equipment shall be capable of withstanding the a-c proof-test voltage specified in Table I-2 or the d-c proof-test voltage specified in Table I-3.
1910.137(b)(2)(xii)
The employer shall certify that equipment has been tested in accordance with the requirements of paragraphs (b)(2)(viii), (b)(2)(ix), and (b)(2)(xi) of this section. The certification shall identify the equipment that passed the test and the date it was tested.
Note: Marking of equipment and entering the results of the tests and the dates of testing onto logs are two acceptable means of meeting this requirement.
Table I-6. - Rubber Insulating Equipment Test Intervals
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Rubber insulating gloves | Before first issue and every 6 months thereafter(1).
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Footnote(1) If the insulating equipment has been electrically
tested but not issued for service, it may not be placed into service
unless it has been electrically tested within the previous 12 months.