New IEEE Standard – Active. This standard covers basic provisions for safeguarding of persons from hazards arising from the installation,operation, or maintenance of 1) conductors and equipment in electric supply stations, and 2) overhead and underground electric supply and communication lines. It also includes work rules for the construction, maintenance, and operation of electric supply and communication lines and equipment. The standard is applicable to the systems and equipment operated by utilities, or similar systems and equipment, of an industrial establishment or complex under the control of qualified persons. This standard consists of the introduction, definitions, grounding rules, list of referenced and bibliographic documents, and Parts 1, 2, 3, and 4 of the 1997 Edition of the National Electrical Safety Code.

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PDF Pages	PDF Title
1	Title Page (1997 NESC)
35	01 Introduction to the National Electrical Safety Code® 010. Purpose 011. Scope 012. General Rules 013. Application
36	014. Waiver 015. Intent 016. Effective Date 017. Units of Measure
38	02 Definitions of Special Terms
47	03 References
49	09 Grounding Methods for Electric Supply and Communications Facilities 90. Purpose 91. Scope 92. Point of Connection of Grounding Conductor
51	93. Grounding Conductor and Means of Connection
54	94. Grounding Electrodes
56	95. Method of Connection to Electrode
57	96. Ground Resistance Requirements 97. Separation of Grounding Conductors
58	98. Number 98 not used in this edition.
59	99. Additional Requirements for Communication Apparatus
61	10 Purpose and Scope of Rules 100. Purpose 101. Scope
62	11 Protective Arrangements in Electric Supply Stations 110. General Requirements
64	111. Illumination 112. Floors, Floor Openings, Passageways, and Stairs
67	113. Exits 114. Fire-Extinguishing Equipment
68	12 Installation and Maintenance of Equipment 120. General Requirements 121. Inspections 122. Guarding Shaft Ends, Pulleys, Belts, and Suddenly Moving Parts 123. Protective Grounding
69	124. Guarding Live Parts
78	125. Working Space About Electric Equipment
79	126. Equipment for Work on Energized Parts 127. Classified Locations
81	128. Identification 129. Mobile Hydrogen Equipment
82	13 Rotating Equipment 130. Speed Control and Stopping Devices 131. Motor Control 132. Number 132 not used in this edition. 133. Short-Circuit Protection
83	14 Storage Batteries 140. General 141. Location 142. Ventilation 143. Racks 144. Floors in Battery Areas 145. Illumination for Battery Areas 146. Service Facilities 147. Number 147 not used in this edition.
84	15 Transformers and Regulators 150. Current-Transformer Secondary Circuits Protection When Exceeding 600 V 151. Grounding Secondary Circuits of Instrument Transformers 152. Location and Arrangement of Power Transformers and Regulators 153. Short-Circuit Protection of Power Transformers
86	16 Conductors 160. Application 161. Electrical Protection 162. Mechanical Protection and Support 163. Isolation 164. Conductor Terminations
87	17 Circuit Breakers, Reclosers, Switches, and Fuses 170. Arrangement 171. Application 172. Circuit Breakers, Reclosers, and Switches Containing Oil 173. Switches and Disconnecting Devices 174. Disconnection of Fuses
88	18 Switchgear and Metal-Enclosed Bus 180. Switchgear Assemblies
89	181. Metal-Enclosed Bus
93	20 Purpose, Scope, and Application of Rules 200. Purpose 201. Scope 202. Application of Rules
94	21 General Requirements 210. Referenced Sections 211. Number 211 not used in this edition. 212. Induced Voltages 213. Accessibility 214. Inspection and Tests of Lines and Equipment
95	215. Grounding of Circuits, Supporting Structures, and Equipment
96	216. Arrangement of Switches 217. General
97	218. Tree Trimming
98	22 Relations Between Various Classes of Lines and Equipment 220. Relative Levels
99	221. Avoidance of Conflict 222. Joint Use of Structures
100	223. Communications Protective Requirements 224. Communication Circuits Located Within the Supply Space and Supply Circuits Located Within th…
101	225. Electric Railway Construction
103	23 Clearances 230. General
105	231. Clearances of Supporting Structures From Other Objects
106	232. Vertical Clearances of Wires, Conductors, Cables, and Equipment Above Ground, Roadway, Rail,…
118	233. Clearances Between Wires, Conductors, and Cables Carried on Different Supporting Structures
128	234. Clearance of Wires, Conductors, Cables, and Equipment From Buildings, Bridges, Rail Cars, Sw…
149	235. Clearance for Wires, Conductors, or Cables Carried on the Same Supporting Structure
163	236. Climbing Space
166	237. Working Space
168	238. Vertical Clearance Between Certain Communications and Supply Facilities Located on the Same …
170	239. Clearance of Vertical and Lateral Facilities From Other Facilities and Surfaces on the Same …
176	24 Grades of Construction 240. General 241. Application of Grades of Construction to Different Situations 242. Grades of Construction for Conductors
181	243. Grades of Construction for Line Supports
182	25 Loadings for Grades B and C 250. General Loading Requirements and Maps
186	251. Conductor Loading
187	252. Loads on Line Supports
188	253. Overload Factors for Structures, Crossarms, Guys, Foundations, and Anchors
191	26 Strength Requirements 260. General (see also Section 20) 261. Grades B and C Construction
199	262. Number 262 not used in this edition. 263. Grade N Construction
201	264. Guying and Bracing
203	27 Line Insulation 270. Application of Rule 271. Material and Marking 272. Ratio of Flashover to Puncture Voltage 273. Insulation Level 274. Factory Tests 275. Special Insulator Applications
204	276. Protection Against Arcing and Other Damage 277. Mechanical Strength of Insulators 278. Aerial Cable Systems
205	279. Guy and Span Insulators
206	Section number 28 not used in this edition.
207	30 Purpose, Scope, and Application of Rules 300. Purpose 301. Scope 302. Application of Rules
208	31 General Requirements Applying to Underground Lines 310. Referenced Sections 311. Installation and Maintenance 312. Accessibility 313. Inspection and Tests of Lines and Equipment 314. Grounding of Circuits and Equipment
209	315. Communications Protective Requirements 316. Induced Voltage
210	32 Underground Conduit Systems 320. Location
211	321. Excavation and Backfill 322. Ducts and Joints
212	323. Manholes, Handholes, and Vaults
216	33 Supply Cable 330. General 331. Sheaths and Jackets 332. Shielding 333. Cable Accessories and Joints
217	34 Cable in Underground Structures 340. General 341. Installation
218	342. Grounding and Bonding 343. Fireproofing 344. Communication Cables Containing Special Supply Circuits
220	35 Direct-Buried Cable 350. General 351. Location and Routing
226	36 Risers 360. General 361. Installation 362. Pole Risers—Additional Requirements 363. Pad-Mounted Installations
227	37 Supply Cable Terminations 370. General 371. Support at Terminations 372. Identification 373. Clearances in Enclosures or Vaults 374. Grounding
228	38 Equipment 380. General 381. Design
229	382. Location in Underground Structures 383. Installation 384. Grounding 385. Identification
230	39 Installation in Tunnels 390. General 391. Environment
231	40 Purpose and Scope 400. Purpose 401. Scope 402. Referenced Sections
232	41 Supply and Communications Systems–Rules for Employers 410. General Requirements 411. Protective Methods and Devices
234	42 General Rules for Employees 420. Personal General Precautions
237	421. General Operating Routines
238	422. Overhead Line Operating Procedures 423. Underground Line Operating Procedures
240	43 Additional Rules for Communications Employees 430. General 431. Approach to Energized Conductors or Parts 432. Joint-Use Structures 433. Attendant on Surface at Joint-Use Manhole 434. Sheath Continuity
241	44 Additional Rules for Supply Employees 440. General 441. Energized Conductors or Parts
250	442. Switching Control Procedures
251	443. Work on Energized Lines and Equipment
253	444. De-energizing Equipment or Lines to Protect Employees
255	445. Protective Grounds 446. Live Work
257	Appendix A: Uniform System of Clearances Adopted in the 1990 Edition
268	Appendix B: Bibliography
271	Index
296	Working Group Assignments
298	Amendments

Published By	Publication Date	Number of Pages
IEEE	1996	298


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Standard Title	1997 National Electric Safety Code (NESC)
Published Code	IEEE
Publication Date	1996
Pages Count	298

IEEE C2 1996

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