electrical maintenance

Source excerpt

# GENERAL INDUSTRY STANDARD (cont.) ## PART 85, THE CONTROL OF HAZARDOUS ENERGY SOURCES (cont.) R 408.[redacted postal code]. Availability of adopted rules. Rule 8599. (1) The standards adopted in these rules are available from the United States Department of Labor, Occupational Safety and Health Administration website: www.osha.gov_at no charge, as of the time of adoption of these rules. (2) The standards adopted in these rules are available for inspection at the Department of Licensing and Regulatory Affairs, MIOSHA Regulatory Services Section, [redacted street address], P.O. Box [redacted postal code], Lansing, Michigan, [redacted identifier]. (3) The standards adopted in these rules may be obtained from the publisher or may be obtained from the Department of Licensing and Regulatory Affairs, MIOSHA Regulatory Services Section, [redacted street address], P.O. Box [redacted postal code], Lansing, Michigan, [redacted identifier], at the cost charged in this rule, plus $20.00 for shipping and handling. ## 1910.147 CONTROL OF HAZARDOUS ENERGY (LOCKOUT/TAGOUT) ## Table of Contents: <table><tr><th>1910.147(a) Scope, application, and purpose 2</th><th>1910.147(f) Additional requirements. 8</th></tr><tr><td>1910.147(a)(1) Scope 2</td><td>1910.147(f)(1) Testing or positioning of machines,</td></tr><tr><td>1910.147(a)(2) Application. 3</td><td>equipment or components thereof. 8</td></tr><tr><td>1910.147(a)(3) Purpose. 3</td><td>1910.147(f)(2) Outside personnel (contractors, etc.). 8</td></tr><tr><td>1910.147(b) Definitions applicable to this section 3</td><td>1910.147(f)(3) Group lockout or tagout 8</td></tr><tr><td>1910.147(c) General 4</td><td>1910.147(f)(4) Shift or personnel changes. 8</td></tr><tr><td>1910.147(c)(1) Energy control program 4</td><td></td></tr><tr><td>1910.147(c)(2) Lockout/tagout. 4</td><td>Appendix A Typical minimal lockout procedures 9</td></tr><tr><td>1910.147(c)(3) Full employee protection 4</td><td>General 9</td></tr><tr><td>1910.147(c)(4) …

Source excerpt

# APPENDIX A TYPICAL MINIMAL LOCKOUT PROCEDURES ## General The following simple lockout procedure is provided to assist employers in developing their procedures so they meet the requirements of this standard. When the energy isolating devices are not lockable, tagout may be used, provided the employer complies with the provisions of the standard which require additional training and more rigorous periodic inspections. When tagout is used and the energy isolating devices are lockable, the employer must provide full employee protection (see paragraph (c)(3)) and additional training and more rigorous periodic inspections are required. For more complex systems, more comprehensive procedures may need to be developed, documented, and utilized. ## Lockout Procedure Lockout Procedure for (Name of Company for single procedure or identification of equipment if multiple procedures are used). ## Purpose This procedure establishes the minimum requirements for the lockout of energy isolating devices whenever maintenance or servicing is done on machines or equipment. It shall be used to ensure that the machine or equipment is stopped, isolated from all potentially hazardous energy sources and locked out before employees perform any servicing or maintenance where the unexpected energization or start-up of the machine or equipment or release of stored energy could cause injury. ## Compliance With This Program All employees are required to comply with the restrictions and limitations imposed upon them during the use of lockout. The authorized employees are required to perform the lockout in accordance with this procedure. All employees, upon observing a machine or piece of equipment which is locked out to perform servicing or maintenance shall not attempt to start, energize, or use that machine or equipment. ## Type of compliance enforcement to be taken for violation of the above. - Sequence of Lockout (1) Notify all affected employees that servicing or maintenance is requ…

Source excerpt

# Occupational Safety and Health Administration (cont.) ## Purpose This procedure establishes the minimum requirements for the lockout of energy isolating devices whenever maintenance or servicing is done on machines or equipment. It shall be used to ensure that the machine or equipment is stopped, isolated from all potentially hazardous energy sources and locked out before employees perform any servicing or maintenance where the unexpected energization or start-up of the machine or equipment or release of stored energy could cause injury. ## Compliance With This Program All employees are required to comply with the restrictions and limitations imposed upon them during the use of lockout. The authorized employees are required to perform the lockout in accordance with this procedure. All employees, upon observing a machine or piece of equipment which is locked out to perform servicing or maintenance shall not attempt to start, energize or use that machine or equipment. Submit Feedback Type of compliance enforcement to be taken for violation of the above. Sequence of Lockout (1) Notify all affected employees that servicing or maintenance is required on a machine or equipment and that the machine or equipment must be shut down and locked out to perform the servicing or maintenance. Name(s)/Job Title(s) of affected employees and how to notify. (2) The authorized employee shall refer to the company procedure to identify the type and magnitude of the energy that the machine or equipment utilizes, shall understand the hazards of the energy, and shall know the methods to control the energy.

Source excerpt

# What legislation or standards apply to arc flash or electrical safety in the workplace? Note that other requirements may be needed that are not discussed in this document. Always consult the legislation that applies in your situation, and with your jurisdiction for complete information. Standards such as the following provide information about establishing a maintenance program and other aspects of electrical safety in the workplace. This list is not complete and other standards may be relevant to your situation or conditions. - Canadian Standards Association (CSA) Z463 "Maintenance of Electrical systems" - CSA Z462 "Workplace Electrical Safety" - National Fire Protection Association (NFPA) 70B "Recommended Practice for Electrical Equipment Maintenance" - NFPA 70E "Standard for Electrical Safety in the Workplace" - American National Standards Institute ANSI/NETA MTS "Standard for Maintenance Testing Specifications for Electrical Power Equipment and Systems" Note: Certain CSA Group standards are available for online viewing. To access these, you must first create an account with "CSA Communities". Go to: https://community.csagroup.org/login.jspa?referer=%252Findex.jspa Once you are logged in, click on the text below the "OHS Standards / View Access" graphic. Click on the jurisdiction of your choice to see the CSA Standards as referenced in that legislation. Standards may also be purchased from CSA Group: https://store.csagroup.org/ Fact sheet last revised: 2023-04-11 ## Disclaimer Although every effort is made to ensure the accuracy, currency and completeness of the information, CCOHS does not guarantee, warrant, represent or undertake that the information provided is correct, accurate or current. CCOHS is not liable for any loss, claim, or demand arising directly or indirectly from any use or reliance upon the information. Arc Flash CCOHS

Source excerpt

# 1910.333-SELECTION AND USE OF WORK PRACTICES Scope/Application: The provisions of 1910.331 through 1910.335 cover electrical safety work practices for both qualified persons (those who have training in avoiding the electrical hazards of working on or near exposed energized parts) and unqualified persons (those with little or no such training). Exception: These standards do not apply to work performed by qualified persons on or directly associated with the following installations: Generation, transmission, and distribution of electric energy (including communication and metering) located in buildings used for such purposes or located outdoors. This work is covered by 1910.269-Electric Power Generation, Transmission, and Distribution. ## STANDARD HIGHLIGHTS - Programs, Plans and Procedures-safety-related work practices, lockout/tagout procedures - Inspections and Tests-visual inspections, tests - Recordkeeping-procedures - Training and Communications-familiar with techniques - Qualified Person-inspections - Signs, Markings and Tags-posted signs ## Programs, Plans and Procedures 1910.333(a)-General. Safety-related work practices shall be employed to prevent electric shock or other injuries resulting from either direct or indirect electrical contacts, when work is performed near or on equipment or circuits which are or may be energized. The specific safety-related work practices shall be consistent with the nature and extent of the associated electrical hazards. 1910.333(b)(2)-Lockout and Tagging. While any employee is exposed to contact with parts of fixed electric equipment or circuits which have been deenergized, the circuits energizing the parts shall be locked out or tagged or both in accordance with the requirements of this paragraph. The requirements shall be followed in the order in which they are presented (i.e., paragraph (b)(2)(i) [Procedures] first, then paragraph (b)(2)(ii)[Deenergizing Equipment], etc.). 1910.333(b)(2)(i)-Procedures. The emp…

Source excerpt

# Safety-Related Work Practices (cont.) ## 1910.333 Selection and Use of Work Practices (cont.) S Selection and Use of Work Practices Division 2 Oregon Administrative Rules Oregon Occupational Safety and Health Division (2) The procedures also incorporate the requirements of paragraphs (b)(2)(iii)(D) and (b)(2)(iv)(B) of this section. (i) Procedures. The employer shall maintain a written copy of the procedures outlined in paragraph (b)(2) and shall make it available for inspection by employees and by the Assistant Secretary of Labor and his or her authorized representatives. - Note: The written procedures may be in the form of a copy of paragraph (b) of this section. (ii) Deenergizing equipment. (A) Safe procedures for deenergizing circuits and equipment shall be determined before circuits or equipment are deenergized. (B) The circuits and equipment to be worked on shall be disconnected from all electric energy sources. Control circuit devices, such as push buttons, selector switches, and interlocks, may not be used as the sole means for deenergizing circuits or equipment. Interlocks for electric equipment may not be used as a substitute for lockout and tagging procedures. (C) Stored electric energy which might endanger personnel shall be released. Capacitors shall be discharged and high capacitance elements shall be short-circuited and grounded, if the stored electric energy might endanger personnel. - Note: If the capacitors or associated equipment are handled in meeting this requirement, they shall be treated as energized. (D) Stored non-electrical energy in devices that could reenergize electric circuit parts shall be blocked or relieved to the extent that the circuit parts could not be accidentally energized by the device. (iii) Application of locks and tags. (A) A lock and a tag shall be placed on each disconnecting means used to deenergize circuits and equipment on which work is to be performed, except as provided in paragraphs (b)(2)…

Source excerpt

# WAC 296-24-975 Selection and use of work practices. (cont.) Chapter 296-24 WAC General Safety and Health Standards Part L Electrical requirements of this section. You must follow the requirements in the order in which they are presented (i.e., (b)(i) of this subsection first, then (b)(ii) of this subsection. Note 1: As used in this section, fixed equipment refers to equipment fastened in place or connected by permanent wiring methods. - Note 2: Lockout and tagging procedures that comply with chapter 296-803 WAC, Lockout/tagout (control of hazardous energy) will also be deemed to comply with (b) of this subsection provided that: 1. The procedures address the electrical safety hazards covered by this part; and 2. The procedures also incorporate the requirements of (b)(iii)(D) and (b)(iv)(B) of this subsection. (i) Procedures. You must maintain a written copy of the procedures outlined in (b) of this subsection and you must make it available for inspection by employees and by the director and their authorized representatives. Note: The written procedures may be in the form of a copy of subsection (2) of this section. (ii) Deenergizing equipment. (A) You must determine safe procedures for deenergizing circuits and equipment before circuits or equipment are deenergized. (B) You must disconnect the circuits and equipment to be worked on from all electric energy sources. You must not use control circuit devices, such as push buttons, selector switches, and interlocks, as the sole means for deenergizing circuits or equipment. You must not use interlocks for electric equipment as a substitute for lockout and tagging procedures. (C) You must release stored electric energy which might endanger personnel You must discharge capacitors and you must short-circuit and ground high capacitance elements if the stored electric energy might endanger personnel. Note: If the capacitors or associated equipment are handled in meeting this requirement, they shall be trea…

Source excerpt

# 1910.333-SELECTION AND USE OF WORK PRACTICES (cont.) ## Recordkeeping 1910.333(b)(2)(i)-Procedures. The employer shall maintain a written copy of the procedures outlined in paragraph (b)(2) [Lockout and Tagging] and shall make it available for inspection by employees and by the Assistant Secretary of Labor and his or her authorized representatives. Note: The written procedures may be in the form of a copy of paragraph (b) [Working on or Near Exposed Deenergized Parts] of this section. ## Training and Communications 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) [Working on or Near Exposed Deenergized Parts] 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. ## Qualified Person 1910.333(b)(2)(iv)(A)-A qualified person shall operate the equipment operating controls or otherwise verify that the equipment cannot be restarted. 1910.333(b)(2)(iv)(B)-A qualified person shall use test equipment to test the circuit elements and electrical parts of equipment to which employees will be exposed and shall verify that the circuit elements and equipment parts are deenergized. The test shall also determine if any energized condition exists as a result of inadvertently induced voltage or unrelated voltage backfeed even though specific parts of the circuit have been deenergized and presumed to be safe. If the circuit to be tested is over 600 volts, nominal, the test equipment shall be checked for proper operation immediately after this test. 1910.333(b)(2)(v)(A)-A qualified person shall conduct tests and visual inspections, as necessary, to verify that all tools, electrical jumpers, shorts, grounds, and other such devices have been removed,…

Source excerpt

# 1910.333 SELECTION AND USE OF WORK PRACTICES ## 1910.333(a) "General." Safety-related work practices shall be employed to prevent electric shock or other injuries resulting from either direct or indirect electrical contacts, when work is performed near or on equipment or circuits which are or may be energized. The specific safety-related work practices shall be consistent with the nature and extent of the associated electrical hazards. ## 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. ## 1910.333(a)(2) "Energized parts." If the exposed live parts are not deenergized (i.e., for reasons of increased or additional hazards or infeasibility), other safety-related work practices shall be used to protect employees who may be exposed to the electrical hazar…