1、UFC 3-560-01 December 06, 2006 Change 4 - May 1, 2012 UNIFIED FACILITIES CRITERIA (UFC) ELECTRICAL SAFETY, O editorial changes ,including changes within the table of contents and metric nomenclature, are not marked with a /4/ This UFC supersedes the following documents: Air Force Manual 32-1185, Ele
2、ctrical Worker Safety. This manual was prepared in draft form, but was not issued. TM 5-682, Facilities Engineering, Electrical Facilities Safety. UFC 3-560-10N (previously MIL-HDBK-1025/10), Safety Of Electrical Transmission And Distribution Systems. Draft UFC 3-560-02, Electrical Safety. This docu
3、ment was made mandatory guidance by Air Force Engineering Technical Letter (ETL) 04-15, Electrical Safety Guidance Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UFC 3-560-01 December 06, 2006 Change 4 - May 1, 2012 FOREWORD The Unified Facilities C
4、riteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies to the Military Departments, the Defense Agencies, and the DoD Field Activities in accordance with USD (AT additional work instructions wi
5、ll likely be necessary related to the actual work being performed. 1-2 SCOPE. 2 This UFC provides safety requirements and guidance for anyone working on or near electrical components rated at 50 volts or above. /2/ 1-2.1 Voltage Classification. For the purposes of this UFC, low voltage is defined as
6、 600 volts or less. Voltages higher than 600 volts are referred to as high voltage. Refer to Glossary for definitions. 1-2.2 Need. Electrical personnel involved in operating and maintaining electrical facilities can be injured and equipment can be damaged whenever electrical systems and components a
7、re not handled safely. The adoption and enforcement of safe electrical practices will reduce the hazards to personnel. 1-2.3 Familiarity and Requirements. Each worker must understand and apply those safety requirements of this UFC that apply to the work performed. 2 This safety manual must be readil
8、y available to each worker for reference and study. /2/ 1-2.4 Mishap Prevention. Mishap prevention is a basic responsibility of every worker. Personal safety, fellow workers safety, and the general publics safety depend upon compliance with this manuals requirements. Safety takes precedence over wor
9、k production. 2 /2/ 1-2.5 Unclear Conditions. If this UFC does not cover a specific working condition or job requirements are unclear, workers must obtain clear instructions from an authorized individual-in-charge before proceeding with the work. 1-2.6 Applicability. This UFC applies to workers invo
10、lved in any aspect of electrical work. This UFC covers the authorized individual-in-charge, crew members, and qualified and unqualified electrical workers. 2 The authorized individual-in-charge might be a supervisor, a foreman, or a lead electrical worker depending upon local policy. /2/ This UFC ap
11、plies to operations, maintenance, and construction functions. It also applies to design functions when on project sites. 2This UFC applies to contractor activities when required by appropriate contract documents. /2/ Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
12、e from IHS-,-,-UFC 3-560-01 December 06, 2006 Change 4 - May 1, 2012 1-2 Note: For Navy electronics personnel/operations, follow the guidance outlined in SPAWARINST 5100.9D, Navy Shore Electronics Safety Precautions. 1-2.7 Work Type. The type of work covered includes electrical construction, install
13、ation, maintenance, operation, repair, and testing of base and facility electrical systems. 1-2.8 Occupational Safety and Health Administration (OSHA). 2 Comply with OSHA requirements, as applicable. /2/ 1-3 REFERENCES. Appendix A contains a list of references used in this UFC. 1-4 CODES, STANDARDS,
14、 AND PUBLICATIONS. 1-4.1 Several codes, standards, and regulations apply to basic electrical practices; these documents cover electrical work rules, safety procedures, and requirements for electrical installations. 4 Comply with all applicable provisions of the current issues of these consensus stan
15、dards as follows and as noted elsewhere in this document. The applicable documents include: ANSI/NETA ATS, Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems. ANSI/NETA MTS, Maintenance Testing Specifications for Electrical Power Distribution Equipment and Syst
16、ems. IEEE C2, National Electrical Safety Code (NESC). NFPA 70, National Fire Protection Association (NFPA), National Electrical Code (NEC). NFPA 70B, Electrical Equipment Maintenance. NFPA 70E, Electrical Safety in the Workplace. 29 CFR 1910, Occupational Safety and Health, General Industry Standard
17、s. 29 CFR 1915, Occupational Safety and Health Standards for Shipyard Employment. 29 CFR 1926, Occupational Safety and Health, Safety and Health Regulations for Construction. 1-4.1.1 For this document, specifically for arc flash related criteria issues mainly identified in Chapter 3 (Pre-Site Safety
18、 Management), and Chapter 4 (Protective Clothing and Personal Protective Equipment), the equipment operating voltage of 1,000 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UFC 3-560-01 December 06, 2006 Change 4 - May 1, 2012 1-3 volts shall be the
19、 delineation point (demarcation point) between the two main applicable consensus standards, NFPA 70E and IEEE C2 (NESC). 1-4.1.2 NFPA 70E shall apply for equipment operating voltages below 1,000 volts. Readily accessible equipment, for all voltage levels, mounted within an enclosure (arc in a box) o
20、n grade, below grade, or in close proximity and maintained from grade, shall fall under the general arc flash requirements of NFPA 70E (Table 4-2) and Additional Work Tasks (Table 4-3) of this publication. 1-4.1.3 IEEE C2 (NESC) shall apply for equipment operating voltages above 1,000 volts. Aerial
21、(overhead) systems and equipment shall fall under the general arc flash requirements of IEEE C2 (NESC) as identified by Additional Work Tasks Table 4-3 and Table 4-4 of this publication. Table 4-4 is a modified version of the IEEE C2 (NESC) Table 410-2. /4/ 1-4.2 Each service has its own documents a
22、nd criteria relating to occupational safety and health. Refer to the following documents as applicable for the issuing and endorsing services: OPNAVINST 5100.23 Series, Navy Occupational Safety and Health (NAVOSH) Program Manual. NAVFACINST 5100.12 (Latest Edition) NAVFACENGCOM Safety heart often re
23、starts after short shocks) 4,000 4,000 Tissue burning (usually not fatal unless vital organs damaged) 5,000 5,000 1The current values for women are lower because women typically have less body mass than men. 1-7.2 Danger from Electrical Arc Flash and Arc Blast Hazards. This UFC addresses arc flash c
24、riteria for electrical safety. Arcs result from the passage of electric current through air; the air failing as an insulator, but serving as a conducting medium. Blasts result when the metal at the arc site expands and vaporizes. High energy arcs can be fatal even at distances of 4 10 ft (3.0 m) or
25、more. /4/ 1-7.3 Workplace Dangers. 2 Table 1-2 indicates typical hazards that can be found in enclosures, enclosed areas, or confined work spaces. Check the applicable material safety data sheets (MSDS). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
26、,-UFC 3-560-01 December 06, 2006 Change 4 - May 1, 2012 1-8 Table 1-2. Typical Hazards Hazard Source Asbestos* Insulation, underground manholes, under houses; crawl spaces, old electric equipment, fire protecting tape, duct banks, arc chutes/shields, cables, and wiring Polychlorinated biphenyl (PCB)
27、 Old liquid-filled transformers, capacitors, ballasts, lead-sheathed cables Sulfur hexafluoride (SF6) Toxic decomposition products from electric arcs or faults acting on SF6 insulation Combustible gases Sewer or natural gas accumulations or from outgassing of lead-acid batteries Carbon monoxide Cabl
28、e faults, combustion engine exhausts Inadequate oxygen Displaced by heavier-than-air gases Lead Outer sheath of lead covered conductors. /2/ Note: Asbestos was a widely used insulator. If insulation is not marked as being “Asbestos Free”, consider it to contain Asbestos. Avoid disturbing the materia
29、l, getting it on clothing, or any activity that could make the fiber airborne. 1-7.4 Health Hazards of Asbestos. Asbestos is a known human carcinogen. Its primary route of entry to the body is by inhalation; however, exposure can occur by ingestion. Asbestos is not absorbed through the skin. The dis
30、eases caused by long term exposure to asbestos are: cancer of the lungs, pleura sack surrounding the lungs, bronchus, oropharynx, stomach, and colon. Symptoms are shortness of breath, dry cough, and clubbing of the fingers. These symptoms generally do not show up for 20 years or more after initial e
31、xposure. The potential for a material containing asbestos to release breathable fibers depends on the materials degree of friability. Friable means that the material can be crumbled with hand pressure. When working around materials suspected of containing asbestos, it is important not to bump, brush
32、 or disturb the materials in any way. Wetting the materials can help to reduce the emission of fibers. Refer to Table 1-3. Note: Employees who are not qualified to work with asbestos are not to handle or remove materials containing asbestos fibers. Refer to 29 CFR 1910.1001 (Asbestos) or 29 CFR 1926
33、.1101 (Asbestos) for worker qualifications and requirements for handling asbestos containing materials. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UFC 3-560-01 December 06, 2006 Change 4 - May 1, 2012 1-9 Table 1-3. Precautionary Steps to Minimi
34、ze Asbestos Exposure 1. Prior to disturbance, have unknown material tested for asbestos. 2. Keep unknown fibers off clothing. Wear disposable coveralls. 3. Wear proper respiratory protection: either full face or half face respirators with P-100 Filter if working with fibrous materials. 4. After work
35、ing with materials, wash hands prior to eating, drinking or taking a break. 1-8 MISHAP RESPONSE. Each worker should know what to do when a mishap occurs. Additionally, each worker should know how to report injuries and other mishaps. 1-8.1 Knowing What to Do. Table 1-4 summarizes the first aid knowl
36、edge required of each worker. As a preplanning aid, an emergency telephone number list should be prepared to include the location and telephone numbers of the nearest ambulance or emergency medical treatment responders, the nearest hospital with an emergency room, the nearest helicopter evacuation s
37、ervice, and the nearest burn trauma center. A medical professional must evaluate all shock victims for possible immediate hospitalization. Table 1-4. Knowing What to Do Item Instructions/Training First aid/CPR How to control bleeding and apply artificial respiration and cardiopulmonary resuscitation
38、 (CPR). How to provide pole top and manhole rescues of mishap victims. Familiarity with electric shock symptoms. Medical provisions Location, contents, and use of first aid kits and where located in electric line and aerial lift vehicles. How to get medical assistance. 1-8.2 Work Injuries and Mishap
39、 Reports. Report injuries, including minor injuries, to your immediate supervisor. Every mishap involving personnel injury, property damage, or near misses must be investigated to determine the cause and the corrective action needed to prevent recurrence. Cognizant safety personnel conduct investiga
40、tions. The safety staff must be notified of all mishaps that involve personnel injuries or property damage. 1-8.3 2 Cardiopulmonary Resuscitation (CPR) and First Aid Training. Employees exposed at or above 50 volts and those trades listed in paragraph 4-4.1 shall be provided with first aid and CPR t
41、raining. First aid training is primarily received Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UFC 3-560-01 December 06, 2006 Change 4 - May 1, 2012 1-10 through the American Red Cross, the National Safety Council, or other private institutions. E
42、mployees shall obtain refresher training as necessary to maintain CPR certifications. When employees are performing work on or associated with exposed lines or equipment energized at 50 volts or more, persons trained in first aid including CPR shall be available as follows:/2/ a. For field work invo
43、lving two or more employees at a work location, at least two trained persons shall be available. See Paragraph 3-3 for those jobs requiring at least two employees. b. For fixed work locations such as generating stations, the number of trained persons available shall be sufficient to ensure that each
44、 employee exposed to electric shock can be reached within 4 minutes by a trained person. However, where the existing number of employees is insufficient to meet this requirement (at a remote substation, for example), all employees at the work location shall be trained. Note: For the Air Force, refer
45、 to AFI 32-1064 for requirements on CPR and first aid training, including certification requirements. 1-8.4 First Aid Supplies. 1-8.4.1 Storage and Inspection. 2 First aid supplies shall be placed in weatherproof containers if the supplies could be exposed to the weather. Each first aid kit shall be
46、 maintained, readily available for use, and inspected frequently (at least annually) to ensure expended items are replaced. /2/ 1-8.4.2 Contents. An example of the minimal contents of a generic first aid kit is described in American National Standard (ANSI) Z308.1, Minimum Requirements for Workplace
47、 First-aid Kits. The contents of the kit listed in the ANSI standard should be adequate for small worksites. When larger operations or multiple operations are being conducted at the same location, employers should determine the need for additional first aid kits at the worksite, additional types of
48、first aid equipment and supplies and additional quantities and types of supplies and equipment in the first aid kits. 1-8.5 Automatic External Defibrillators (AEDs). Where emergency medical assistance is not available within four minutes, the use of AEDs may be warranted. Prior to agencies/activitie
49、s purchasing AEDs, effective written programs must be established. These programs shall, at a minimum, address: Coordination with private sector and/or DoD medical facilities, fire departments, emergency responders. Training. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UFC 3-56
