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46 Cards in this Set
- Front
- Back
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General requirements for grounding and bonding
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250.4
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Objectionable currents
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250.6
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Connection of grounding and bonding equiqment
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250.8
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Protection of ground clamps and fittings
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250.10
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Clean surfaces
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250.12
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AC Systems to be grounded
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250.20
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AC systems not required to be grounded
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250.21
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Circuits not to be grounded
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250.22
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Grounding service supplied AC systems
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250.24
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Sizing of service grounded conductor
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250.24(C)(1)
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Sizing of main bonding jumper
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250.28(D)
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Grounding separately derived systems
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250.30
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Grounding of separate buildings or structures
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250.32
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Portable and vehicle-mounted generators
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250.34
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Permanently installed generators
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250.35
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High-impedance grounded neutral systems
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250.36
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Grounding electrodes
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250.52
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Grounding electrode system installation
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250.53
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Auxiliary grounding electrodes
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250.54
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Resistance of rod, pipe, and plate electrodes
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250.56
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Common grounding electrode
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250.58
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Use of air terminals
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250.60
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Grounding electrode conductor material
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250.62
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Grounding electrode conductor installation
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250.64
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Sizing of grounding electrode conductor
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250.66
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Methods of grounding and bonding conductor connection to electrodes
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250.70
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Service raceways and enclosures
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250.80
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Underground service cable or raceway
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250.84
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Other conductor enclosures and raceways
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250.86
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Bonding services
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250.92
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Bonding for other systems
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250.94
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Bonding other enclosures
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250.96
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Bonding for over 250 volts
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250.97
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Bonding loosely jointed metal raceways
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250.98
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Equipment bonding jumpers
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250.102
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Bonding of piping systems and exposed structural steel
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250.104
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Lighting protection systems
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250.106
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Types of equipment grounding conductors
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250.118
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Identification of equipment grounding conductors
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250.119
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Equipment grounding conductor installation
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250.120
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Size of equipment grounding conductor
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250.122
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Equipment grounding conductor continuity
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250.124
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Frames of ranges and dryers
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250.140
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Use of grounded circuit conductor for grounding equipment
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250.142
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Connecting receptacle grounding terminal to box
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250.146
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Continuity and attachment of equipment grounding conductors to boxes
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250.148
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