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E-grāmata: National Electrical Safety Code 2007 Handbook

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  • Formāts: 768 pages
  • Izdošanas datums: 14-Dec-2006
  • Izdevniecība: McGraw-Hill Professional
  • Valoda: eng
  • ISBN-13: 9780071493611
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National Electrical Safety Code 2007 HandbookPalielināt
  • Formāts: 768 pages
  • Izdošanas datums: 14-Dec-2006
  • Izdevniecība: McGraw-Hill Professional
  • Valoda: eng
  • ISBN-13: 9780071493611
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A Hands-on Guide to the 2007 NESC® that Clarifies Code Rules for You to Achieve Full Compliance!

McGraw-Hill's National Electrical Safety Code® 2007 Handbook delivers a rule-by-rule annotation of the NESC® that clarifies the often confusing Code text and allows you to perform your work confidently and safely. Designed for use with the Code itself, this expert resource guides readers through safety rules for the installation, operation, and maintenance of electrical supply stations and equipment, and also for overhead and underground electric supply and communication lines.

Fully updated with all the latest rules, McGraw-Hill's National Electrical Safety Code® 2007 Handbook features:

  • The best complete NESC® annotation currently available
  • A rule-by-rule overview of the entire code
  • Over 500 detailed illustrations and photographs
  • A wealth of practical examples of code applications
  • Concise explanations of controversial rules

Inside this Time-Saving, NESC Compliance Tool

• General Sections: Definitions • Grounding • Part 1. Rules for Installation and Maintenance of Electric Supply Stations and Equipment: Fences • Safety Signs • Storage • Working Space • Batteries • Transformers and Regulators • Conductors • Circuit Breakers, Reclosers, Switches, and Fuses • Surge Arresters • Part 2. Rules for Installation and Maintenance of Overhead Electric Supply and Communication Lines: Inspections • Clearances • Joint Use • Grades of Construction • Loadings • Strength Requirements • Line Insulation • Part 3. Rules for Installation and Maintenance of Underground Electric Supply and Communication Lines: Underground Conduit Systems • Supply Cable • Cable in Underground Structures • Direct-Buried Cable • Risers • Terminations • Part 4. Rules for Operation of Electric Supply and Communication Lines and Equipment: Employer Rules • Employee Rules • Communication Worker Rules • Supply Worker Rules • OSHA Requirements
Preface xiii
Acknowledgments xv
General Sections
Section
01. Introduction to the National Electrical Safety Code
3(10)
010. Purpose
3(1)
011. Scope
4(2)
012. General Rules
6(1)
013. Application
7(1)
014. Waiver
8(1)
015. Intent
9(1)
016. Effective Date
10(1)
017. Units of Measure
10(1)
018. Method of Calculation
11(2)
Section
02. Definitions of Special Terms
13(2)
Section
03. References
15(2)
Section
09. Grounding Methods for Electric Supply and Communications Facilities
17(40)
090. Purpose
17(1)
091. Scope
17(1)
092. Point of Connection of Grounding Conductor
18(11)
093. Grounding Conductor and Means of Connection
29(6)
094. Grounding Electrodes
35(4)
095. Method of Connection to Electrode
39(5)
096. Ground Resistance Requirements
44(4)
097. Separation of Grounding Conductors
48(4)
098. Number 098 Not Used in This Edition
52(1)
099. Additional Requirements for Grounding and Bonding of Communication Apparatus
52(5)
Part
1. Rules for the Installation and Maintenance of Electric Supply Stations and Equipment
Section
10. Purpose and Scope of Rules
57(2)
100. Purpose
57(1)
101. Scope
57(1)
102. Application of Rules
58(1)
103. Referenced Sections
58(1)
Section
11. Protective Arrangements in Electric Supply Stations
59(12)
110. General Requirements
59(8)
111. Illumination
67(1)
112. Floors, Floor Openings, Passageways, and Stairs
68(1)
113. Exits
69(1)
114. Fire-Extinguishing Equipment
70(1)
Section
12. Installation and Maintenance of Equipment
71(12)
120. General Requirements
71(1)
121. Inspections
71(1)
122. Guarding Shaft Ends, Pulleys, Belts, and Suddenly Moving Parts
72(1)
123. Protective Grounding
72(1)
124. Guarding Live Parts
73(3)
125. Working Space About Electric Equipment
76(4)
126. Equipment for Work on Energized Parts
80(1)
127. Classified Locations
81(1)
128. Identification
81(1)
129. Mobile Hydrogen Equipment
82(1)
Section
13. Rotating Equipment
83(4)
130. Speed Control and Stopping Devices
83(1)
131. Motor Control
84(1)
132. Number 132 Not Used in This Edition
133. Short-Circuit Protection
84(3)
Section
14. Storage Batteries
87(4)
140. General
87(1)
141. Location
88(1)
142. Ventilation
88(1)
143. Racks
88(1)
144. Floors in Battery Areas
89(1)
145. Illumination for Battery Areas
89(1)
146. Service Facilities
89(2)
Section
15. Transformers and Regulators
91(6)
150. Current-Transformer Secondary Circuits Protection When Exceeding 600 V
91(1)
151. Grounding Secondary Circuits of Instrument Transformers
91(1)
152. Location and Arrangement of Power Transformers and Regulators
92(2)
153. Short-Circuit Protection of Power Transformers
94(3)
Section
16. Conductors
97(6)
160. Application
97(1)
161. Electrical Protection
98(1)
162. Mechanical Protection and Support
99(1)
163. Isolation
99(2)
164. Conductor Terminations
101(2)
Section
17. Circuit Breakers, Reclosers, Switches, and Fuses
103(6)
170. Arrangement
103(1)
171. Application
104(2)
172. Circuit Breakers, Reclosers, and Switches Containing Oil
106(1)
173. Switches and Disconnecting Devices
106(1)
174. Disconnection of Fuses
107(2)
Section
18. Switchgear and Metal-Enclosed Bus
109(6)
180. Switchgear Assemblies
109(2)
181. Metal-Enclosed Bus
111(4)
Section
19. Surge Arresters
115(4)
190. General Requirements
115(1)
191. Indoor Locations
115(1)
192. Grounding Conductors
116(1)
193. Installation
116(3)
Part
2. Safety Rules for the Installation and Maintenance of Overhead Electric Supply and Communication Lines
Section
20. Purpose, Scope, and Application of Rules
119(4)
200. Purpose
119(1)
201. Scope
119(1)
202. Application of Rules
120(3)
Section
21. General Requirements
123(18)
210 Referenced Sections
123(1)
211. Number 211 Not Used in This Edition
212. Induced Voltages
123(1)
213. Accessibility
123(1)
214. Inspection and Tests of Lines and Equipment
124(2)
215. Grounding of Circuits, Supporting Structures, and Equipment
126(1)
216. Arrangement of Switches
126(1)
217. General
126(8)
218. Vegetation Management
134(7)
Section
22. Relations between Various Classes of Lines and Equipment
141(12)
220. Relative Levels
141(2)
221. Avoidance of Conflict
143(2)
222. Joint Use of Structures
145(4)
223. Communications Protective Requirements
149(1)
224. Communication Circuits Located Within the Supply Space and Supply Circuits Located Within the Communication Space
149(2)
225. Electric Railway Construction
151(2)
Section
23. Clearances
153(128)
230. General
161(13)
231. Clearances of Supporting Structures from Other Objects
174(3)
232. Vertical Clearances of Wires, Conductors, Cables, and Equipment above Ground, Roadway, Rail, or Water Surfaces
177(21)
233. Clearances between Wires, Conductors, and Cables Carried on Different Supporting Structures
198(12)
234. Clearance of Wires, Conductors, Cables, and Equipment from Buildings, Bridges, Rail Cars, Swimming Pools, and Other Installations
210(17)
235. Clearance for Wires, Conductors, or Cables Carried on the Same Supporting Structure
227(20)
236. Climbing Space
247(6)
237. Working Space
253(1)
238. Vertical Clearance between Certain Communication and Supply Facilities Located on the Same Structure
254(6)
239. Clearance of Vertical and Lateral Facilities from Other Facilities and Surfaces on the Same Supporting Structure
260(21)
Section
24. Grades of Construction
281(10)
240. General
281(2)
241. Application of Grades of Construction to Different Situations
283(1)
242. Grades of Construction for Conductors
284(3)
243. Grades of Construction for Line Supports
287(4)
Section
25. Loadings for Grades B and C
291(20)
250. General Loading Requirements and Maps
291(6)
251. Conductor Loading
297(3)
252. Loads on Line Supports
300(8)
253. Load Factors for Structures, Crossarms, Support Hardware, Guys, Foundations, and Anchors
308(3)
Section
26. Strength Requirements
311(28)
260. General (see also Section 20)
311(4)
261. Grades B and C Construction
315(13)
262. Number 262 Not Used in This Edition
328(1)
263. Grade N Construction
328(1)
264. Guying and Bracing
329(10)
Section
27. Line Insulation
339(12)
270. Application of Rule
339(1)
271. Material and Marking
339(1)
272. Ratio of Flashover to Puncture Voltage
340(1)
273. Insulation Level
341(1)
274. Factory Tests
342(1)
275. Special Insulator Applications
342(1)
276. Number 276 Not Used in This Edition
343(1)
277. Mechanical Strength of Insulators
344(1)
278. Aerial Cable Systems
344(1)
279. Guy and Span Insulators
344(7)
Section
28. Section Number 28 Not Used in This Edition
Section
29. Section Number 29 Not Used in This Edition
Part
3. Safety Rules for the Installation and Maintenance of Underground Electric Supply and Communication Lines
Section
30. Purpose, Scope, and Application of Rules
351(4)
300. Purpose
351(1)
301. Scope
351(2)
302. Application of Rule
353(2)
Section
31. General Requirements Applying to Underground Lines
355(8)
310. Referenced Sections
355(1)
311. Installation and Maintenance
355(2)
312. Accessibility
357(2)
313. Inspection and Tests of Lines and Equipment
359(1)
314. Grounding of Circuits and Equipment
359(1)
315. Communications Protective Requirements
359(1)
316. Induced Voltage
359(4)
Section
32. Underground Conduit Systems
363(22)
320. Location
363(10)
321. Excavation and Backfill
373(1)
322. Ducts and Joints
373(1)
323. Manholes, Handholes, and Vaults
373(12)
Section
33. Supply Cable
385(4)
330. General
385(1)
331. Sheaths and Jackets
385(1)
332. Shielding
386(1)
333. Cable Accessories and Joints
386(3)
Section
34. Cable in Underground Structures
389(10)
340. General
389(1)
341. Installation
389(4)
342. Grounding and Bonding
393(3)
343. Fireproofing
396(1)
344. Communication Cables Containing Special Supply Circuits
396(3)
Section
35. Direct-Buried Cable
399(14)
350. General
399(2)
351. Location and Routing
401(2)
352. Installation
403(4)
353. Deliberate Separations-Equal to or Greater Than 300 mm (12 in) from Underground Structures or Other Cables
407(2)
354. Random Separation-Separation Less Than 300 mm (12 in) from Underground Structures or Other Cables
409(4)
Section
36. Risers
413(6)
360. General
413(1)
361. Installation
413(1)
362. Pole Risers-Additional Requirements
413(1)
363. Pad-Mounted Installations
414(5)
Section
37. Supply Cable Terminations
419(4)
370. General
419(1)
371. Support at Terminations
420(1)
372. Identification
420(1)
373. Clearances in Enclosures or Vaults
421(1)
374. Grounding
422(1)
Section
38. Equipment
423(8)
380. General
423(1)
381. Design
424(4)
382. Location in Underground Structures
428(1)
383. Installation
429(1)
384. Grounding and Bonding
429(1)
385. Identification
430(1)
Section
39. Installation in Tunnels
431(4)
390. General
431(1)
391. Environment
431(4)
Part
4. Rules for the Operation of Electric Supply and Communications Lines and Equipment
Section
40. Purpose and Scope
435(4)
400. Purpose
435(1)
401. Scope
435(2)
402. Referenced Sections
437(2)
Section
41. Supply and Communication Systems Rules for Employers
439(6)
410. General Requirements
440(2)
411. Protective Methods and Devices
442(3)
Section
42. General Rules for Employees
445(16)
420. Personal General Precautions
446(8)
421. General Operating Routines
454(2)
422. Overhead Line Operating Procedures
456(1)
423. Underground Line Operating Procedures
457(4)
Section
43. Additional Rules for Communications Employees
461(6)
430. General
464(1)
431. Approach to Energized Conductors or Parts
464(1)
432. Joint-Use Structures
465(1)
433. Attendant on Surface at Joint-Use Manhole
466(1)
434. Sheath Continuity
466(1)
Section
44. Additional Rules for Supply Employees
467(24)
440. General
470(1)
441. Energized Conductors or Parts
470(3)
442. Switching Control Procedures
473(4)
443. Work on Energized Lines and Equipment
477(5)
444. De-energizing Equipment or Lines to Protect Employees
482(4)
445. Protective Grounds
486(1)
446. Live Work
487(2)
447. Protection against Arcing and Other Damage While Installing and Maintaining Insulators and Conductors
489(2)
Appendix A. Photographs of NESC Applications 491(66)
Appendix B. OSHA Standards Related to the NESC Work Rules 557(188)
Index 745


David J. Marne (Missoula, MT) is a branch manager and senior engineer at SSR Engineers, inc, where he specializes in NESC applications. Mr. Marne teaches widely on the NESC, and is a Senior Member of the IEEE.
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