ELECTRICAL LOCKOUT / TAG OUT
PROCEDURES
EP-10095 Electrical Lockout Procedures.doc
4 of 5
Copyright © 2012 Aqua-Aerobic Systems, Inc.
2008-12-22
Facilities should adopt standard written procedures and training for these common tasks. For
instance, when opening and closing disconnects, use the
left-hand rule
when possible (stand to
the right side of the equipment and operate the disconnect switch with the left hand).
Approach Distances to Exposed Live Parts
The National Fire Protection Association (NFPA) defines three approach boundaries for
shock
hazards
and one for
arc flash
.
Shock Hazards
The
Limited Approach Boundary
is the distance from an exposed live part within which a
shock hazard exists.
The
Restricted Approach Boundary
is the closest distance to exposed live parts a
qualified person can approach with or without proper PPE and tools. Inside this
boundary, accidental movement can put a part of the body or conductive tools in contact
with live parts or inside the prohibited approach boundary. To cross the restricted
approach boundary, the qualified person must review and understand Annex C, Limits of
Approach, of NFPA 70-E
The
Prohibited Approach Boundary
is the minimum approach distance to exposed live
parts to prevent flashover or arcing. Approaching any closer is comparable to making
direct contact with a live part.
Arc Flash Hazard
The Flash Protection Boundary is the approach limit at a distance from exposed live parts
within which a person could receive a second degree burn if an electrical arc flash were
to occur. For systems of 600 volts and less, the flash protection boundary is 4 feet, based
on an available bolted fault current of 50 kA and a clearing time of 6 cycles for the circuit
breaker to act, or any combination of fault currents and clearing times not exceeding 300
kA cycles.
Approach Boundaries to Live Parts for Shock Protection
(All dimensions are distance from live part to worker)
Limited approach boundary
Nominal system voltage
range, phase to phase
Exposed movable
conductor
Exposed fixed-
circuit part
Restricted approach boundary
(allowing for accidental
movement)
Prohibited
approach
boundary
0 to 50 volts
Not specified
Not specified
Not specified
Not specified
51 to 300 volts
10 ft. 0 in.
3 ft. 6 in.
Avoid contact
Avoid contact
301 to 750 volts
10 ft. 0 in.
3 ft. 6 in.
1 ft. 0 in.
0 ft. 1 in.
751 to 15 KV KV
10 ft. 0 in.
5 ft. 0 in.
2 ft. 2 in.
0 ft. 7 in.
Source: Excerpted from table 130.2(C), “Approach Boundaries to Live Parts for Shock Protection”
(NFPA 70-E
Standard for Electrical Safety Requirements for Employee Workplaces, 2004 edition).
Содержание VG3B3-B
Страница 14: ...GENERAL INFORMATION...
Страница 17: ...EQUIPMENT SAFETY DOCUMENTS and PRECAUTIONS...
Страница 30: ...U L MOTOR REQUIREMENTS...
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Страница 35: ...PROTECTIVE COATINGS...
Страница 37: ...PAINT TECHNICAL DATA SHEETS...
Страница 43: ...PASSIVATION DOCUMENTS...
Страница 47: ...STORAGE PROCEDURES...
Страница 51: ...INSTRUMENTATION...
Страница 56: ...VALVES...
Страница 58: ...PUMPS...
Страница 61: ...MATERIAL SAFETY DATA SHEETS...
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Страница 66: ...PAINT COATING MSDS...
Страница 73: ...ADHESIVE ANCHORS MSDS...
Страница 74: ...SIMPSON...
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Страница 100: ...INSTALLATION AND START UP...
Страница 103: ...START UP PAPERS...
Страница 125: ...PROCESS AND CONTROL...
Страница 181: ...MECHANICAL AND FIELD INSTRUMENT COMPONENT INFORMATION...
Страница 182: ...ACTUATOR...
Страница 183: ...CORD SET...
Страница 185: ...AUMA...
Страница 186: ...115V 1ph 60Hz...
Страница 190: ...ANCHORS...
Страница 191: ...ADHESIVE ANCHOR See Drawing Section 7 for Details...
Страница 192: ...MANUAL GUN...
Страница 194: ...REFILL PACK...
Страница 197: ...MIXING NOZZLE...
Страница 199: ...INSTRUMENTATION...
Страница 200: ...CONTROLLER...
Страница 201: ...THERMO FISHER...
Страница 203: ...pH PROBE...
Страница 205: ...pH Probe Assembly Part 2966753 Sensor Head Data Stick Adapter 2012 11 28 2966753 pH Probe Assembly doc 2 of 2...
Страница 206: ...FLOW METER...
Страница 211: ...PRESSURE TRANSMITTER...
Страница 213: ...PUMP...
Страница 214: ...MEMBRANE FEED PUMP...
Страница 217: ...Pump Part 2616713 Gorman Rupp VG3B3 B Centrifugal 2013 12 09 2616713 Pump doc 3 of 3...
Страница 220: ...BACKWASH PUMP...
Страница 223: ...Pump Part 2616695 Gorman Rupp VG3C3 B Centrifugal 2013 12 09 2616695 Pump doc 3 of 3...
Страница 227: ...BUTTERFLY VALVE...
Страница 228: ...MANUAL LEVER BUTTERFLY VALVE...
Страница 238: ...ELECTRIC BUTTERFLY VALVE...
Страница 241: ...SWING CHECK VALVE...
Страница 243: ...SOLENOID VALVE...
Страница 245: ...MEMBRANE MODULE ACCESSORIES...
Страница 254: ...AIR COMPRESSOR ACCESSORIES...
Страница 258: ...ELECTRICAL CONTROL PANEL COMPONENT INFORMATION...
Страница 265: ...CABLE CONDUIT WIRE...
Страница 271: ...CIRCUIT BREAKER...
Страница 281: ...COMPUTER and MONITOR...
Страница 289: ...ENCLOSURE...
Страница 291: ...Type 12 Enclosure Part 2750002 Hoffman Two Door Floor Mount 2011 03 03 2750002 Hoffman Type 12 Enclosure doc 2 of 2...
Страница 293: ...Type 12 Enclosure Part 2750149 Hoffman Two Door Floor Mount 2007 07 09 2750149 Hoffman Type 12 Enclosure doc 2 of 2...
Страница 295: ...4X Fiberglass Enclosure Part 2750251 Hoffman ULTRX 2007 07 09 2750251 Hoffman 4X Fiberglass Enclosure doc 2 of 2...
Страница 296: ...ENCLOSURE ACCESSORIES...
Страница 307: ...ENVIRONMENTAL CONTROL ENCLOSURE...
Страница 310: ...Heat Exchanger Part 2752664 Hoffman XR472416012 2013 11 08 2752664 Heat Exchanger doc 2 of 3 Dimensions...
Страница 311: ...Heat Exchanger Part 2752664 Hoffman XR472416012 2013 11 08 2752664 Heat Exchanger doc 3 of 3 Cutout Dimensions...
Страница 313: ...Temperature Control Switch Part 2700943 Hoffman ATEMNO 2014 04 30 2700943 Hoffman Temperature Switch doc 2 of 2...
Страница 314: ...FUSE...
Страница 329: ...FUSE BLOCK...
Страница 336: ...HMI HUMAN MACHINE INTERFACE...
Страница 343: ...MAIN DISCONNECT...
Страница 350: ...MAIN DISCONNECT ACCESSORIES...
Страница 354: ...MOTOR CONTROL...
Страница 368: ...NETWORK...
Страница 374: ...Ethernet Switch Part 2702571 N TRON 708FX2 SC 2013 12 16 2702571 Ethernet Switch doc 3 of 3 Dimensions...
Страница 379: ...PILOT DEVICE...
Страница 392: ...PLC PROGRAMMABLE LOGIC CONTROL...
Страница 394: ...Analog Input Module Part 2701835 Allen Bradley CompactLogix 2008 01 30 2701835 AB Analog Input CompactLogix doc 2 of 3...
Страница 395: ...Analog Input Module Part 2701835 Allen Bradley CompactLogix 2008 01 30 2701835 AB Analog Input CompactLogix doc 3 of 3...
Страница 406: ...Power Supply Part 2701833 Allen Bradley CompactLogix 2008 01 11 2701833 AB Power Supply CompactLogix doc 2 of 2...
Страница 416: ...Flex I O Ethernet Adapter Part 2702281 Allen Bradley 2008 01 30 2702281 AB Flex IO Ethernet Module doc 2 of 4...
Страница 417: ...Flex I O Ethernet Adapter Part 2702281 Allen Bradley 2008 01 30 2702281 AB Flex IO Ethernet Module doc 3 of 4...
Страница 418: ...Flex I O Ethernet Adapter Part 2702281 Allen Bradley 2008 01 30 2702281 AB Flex IO Ethernet Module doc 4 of 4...
Страница 420: ...PRINTERS...
Страница 424: ...POWER SUPPLY...
Страница 426: ...Power Supply Part 2751312 Allen Bradley 2008 02 28 2751312 AB Power Supply doc 2 of 5...
Страница 427: ...Power Supply Part 2751312 Allen Bradley 2008 02 28 2751312 AB Power Supply doc 3 of 5...
Страница 428: ...Power Supply Part 2751312 Allen Bradley 2008 02 28 2751312 AB Power Supply doc 4 of 5...
Страница 429: ...Power Supply Part 2751312 Allen Bradley 2008 02 28 2751312 AB Power Supply doc 5 of 5...
Страница 431: ...Power Supply Part 2750761 DS 2750761 AB Power Supply doc 2 of 4 Copyright 2007 Aqua Aerobic Systems Inc 2013 01 14...
Страница 432: ...Power Supply Part 2750761 DS 2750761 AB Power Supply doc 3 of 4 Copyright 2007 Aqua Aerobic Systems Inc 2013 01 14...
Страница 433: ...Power Supply Part 2750761 DS 2750761 AB Power Supply doc 4 of 4 Copyright 2007 Aqua Aerobic Systems Inc 2013 01 14...
Страница 434: ...RELAY CONTROL...
Страница 436: ...Relay Part 2752020 Allen Bradley 700 HA32A1 4 2013 06 28 2752020 AB 700 HA34A1 4 Relay doc 2 of 3 Specifications...
Страница 440: ...SURGE SUPPRESSOR TRANSIENT FILTER...
Страница 442: ...Active Tracking Filter Part 2700906 Islatrol IC 105 2014 04 28 2700906 Islatrol Active Tracking Filter doc 2 of 2...
Страница 447: ...TERMINAL BLOCK ACCESSORIES...
Страница 471: ...TIMERS...
Страница 475: ...Relay Socket Part 2702163 ATC 2008 12 12 2702163 Delayed Interval Relay Socket doc 2 of 2 Wiring Diagram...
Страница 477: ...TRANSFORMER ACCESSORIES...
Страница 482: ...UPS UNINTERRUPTIBLE POWER SUPPLY...
Страница 489: ...MAINTENANCE AND TROUBLESHOOTING...
Страница 498: ...COMPONENT PRODUCTS EQUIPMENT O M INSTRUCTION MANUALS...
Страница 499: ...ACTUATOR...
Страница 500: ...ELECTRIC...
Страница 501: ...Electric part turn actuators Operation instructions SG 05 1 SG 12 1 SGR 05 1 SGR 12 1 AUMA NORM for flange type FA...
Страница 534: ...ADHESIVE ANCHOR O M...
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Страница 537: ...INSTRUMENTATION O M...
Страница 538: ...FLOW METER...
Страница 684: ...5 NOTES 30 IFC 100 www krohne com 07 2010 4000124104 QS IFC 100 R04 en...
Страница 685: ...NOTES 5 31 IFC 100 www krohne com 07 2010 4000124104 QS IFC 100 R04 en...
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Страница 723: ...TURBIDITY MONITORING O M...
Страница 734: ...10 Installation Figure 4 1720E Dimensions...
Страница 738: ...14 System Startup...
Страница 746: ...22 Operation...
Страница 754: ...30 Troubleshooting...
Страница 760: ...36 Modbus Register Information...
Страница 762: ...38 Index...
Страница 763: ...DOC023 53 80221 FT660 sc 01 2012 Edition 2 User Manual...
Страница 764: ......
Страница 782: ...1 2 18 English...
Страница 783: ...3 4 English 19...
Страница 790: ...26 English...
Страница 791: ......
Страница 793: ...CONTROLLER...
Страница 794: ...Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide...
Страница 873: ......
Страница 875: ...pH PROBE...
Страница 880: ...PRESSURE TRANSMITTER...
Страница 881: ......
Страница 900: ...A 9 Keller America Inc User s Guide Rev 10 11...
Страница 901: ...A 10 Keller America Inc User s Guide Rev 10 11...
Страница 904: ...MEMBRANE MODULE...
Страница 905: ...inge GmbH Installation Operation and Maintenance Guidelines inge T Rack vario...
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Страница 935: ...Appendix B Process Specification inge UF...
Страница 957: ...PUMPS...
Страница 958: ...GORMAN RUPP PUMP...
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Страница 1013: ...OM 02812 VG SERIES MAINTENANCE REPAIR PAGE E 2 SECTION DRAWING PARTSPAGE Figure 1 Pump Model VG3C3 B...
Страница 1056: ...VALVES...
Страница 1057: ...NIBCO VALVE...
Страница 1058: ...WAFER BUTTERFLY VALVE...
Страница 1068: ...MILLIKEN VALVE...
Страница 1069: ...MILLIKEN BUTTERFLY VALVE...
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Страница 1075: ...5 OPERATION MAINTENANCE ILLUSTRATION 3 Q DIMENSION 3 4 6 8 10 12 14 16 18 20 24 2 75 4 88 5 57 8 38 10 5 13 13 15 25 17 38 21 38...
Страница 1077: ...MECHANICAL DRAWINGS...
Страница 1110: ...ELECTRICAL DRAWINGS...
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