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NEC Handbook code book

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Requirements: Adobe PDF ReaderSAMPLE OF CONTENTS:2005 Edition Introduction ........................................ 70 1
Chapter 1 General
100 Definitions ......................................... 70 4
I. General .......................................... 70 4
II. Over 600 Volts, Nominal ..................... 70 10
110 Requirements for Electrical Installations ..... 70 11
I. General .......................................... 70 11
II. 600 Volts, Nominal, or Less ................. 70 14
III. Over 600 Volts, Nominal ..................... 70 17
IV. Tunnel Installations over 600 Volts,
Nominal .......................................... 70 20
V. Manholes and Other Electric
Enclosures Intended for Personnel
Entry, All Voltages. [ROP 1240] ........... 70 20
Chapter 2 Wiring and Protection
200 Use and Identification of Grounded
Conductors .......................................... 70 23
210 Branch Circuits ................................... 70 25
I. General Provisions ............................ 70 25
II. Branch-Circuit Ratings ....................... 70 29
III. Required Outlets ............................... 70 31
215 Feeders ............................................. 70 35
220 Branch-Circuit, Feeder, and Service
Calculations ........................................ 70 37
I. General .......................................... 70 37
II. Branch Circuit Load Calculations .......... 70 38
III. Feeder and Service Load Calculations ..... 70 40
IV. Optional Feeder and Service Load
Calculations ..................................... 70 43
V. Farm Load Calculation ...................... 70 46
225 Outside Branch Circuits and Feeders ......... 70 47
I. General .......................................... 70 47
II. More Than One Building or Other
Structure ......................................... 70 50
III. Over 600 Volts ................................. 70 52
230 Services ............................................ 70 53
I. General .......................................... 70 53
II. Overhead Service-Drop Conductors ........ 70 54
III. Underground Service-Lateral
Conductors ...................................... 70 56
IV. Service-Entrance Conductors ................ 70 56
V. Service Equipment General .............. 70 58
VI. Service Equipment Disconnecting
Means ............................................ 70 59
VII. Service Equipment Overcurrent
Protection ........................................ 70 60
VIII. Services Exceeding 600 Volts, Nominal ... 70 62
ARTICLE
240 Overcurrent Protection ........................... 70 63
I. General .......................................... 70 63
II. Location ......................................... 70 66
III. Enclosures ...................................... 70 70
IV. Disconnecting and Guarding ................ 70 70
V. Plug Fuses, Fuseholders, and Adapters .... 70 70
VI. Cartridge Fuses and Fuseholders ........... 70 71
VII. Circuit Breakers ............................... 70 71
VIII. Supervised Industrial Installations .......... 70 72
IX. Overcurrent Protection Over 600 Volts,
Nominal .......................................... 70 73
250 Grounding and Bonding ......................... 70 74
I. General .......................................... 70 74
II. System Grounding ............................ 70 77
III. Grounding Electrode System and
Grounding Electrode Conductor ............. 70 83
IV. Enclosure, Raceway, and Service Cable
Grounding ....................................... 70 87
V. Bonding ......................................... 70 88
VI. Equipment Grounding and Equipment
Grounding Conductors ........................ 70 90
VII. Methods of Equipment Grounding ......... 70 95
VIII. Direct-Current Systems ....................... 70 97
IX. Instruments, Meters, and Relays ............ 70 98
X. Grounding of Systems and Circuits of
1 kV and Over (High Voltage) ............... 70 99
280 Surge Arresters .................................... 70100
I. General .......................................... 70100
II. Installation ...................................... 70101
III. Connecting Surge Arresters .................. 70101
285 Transient Voltage Surge Suppressors:
TVSSs ............................................... 7010
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