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E-grāmata: Practical Guide to The Wiring Regulations - 17th Edition IEE Wiring Regulations (BS 7671:2008) 4e: 17th Edition IEE Wiring Regulations (BS 7671:2008) 4th Edition [Wiley Online]

, (Principal Engineer, National Inspection Council for Electrical Installation Contracting, London)
  • Formāts: 626 pages
  • Izdošanas datums: 17-Apr-2009
  • Izdevniecība: John Wiley & Sons Inc
  • ISBN-10: 470742860
  • ISBN-13: 9780470742860
Citas grāmatas par šo tēmu:
  • Wiley Online
  • Cena: 96,75 €*
  • * this price gives unlimited concurrent access for unlimited time
  • Formāts: 626 pages
  • Izdošanas datums: 17-Apr-2009
  • Izdevniecība: John Wiley & Sons Inc
  • ISBN-10: 470742860
  • ISBN-13: 9780470742860
Citas grāmatas par šo tēmu:
This best-selling text has been revised to reflect the requirements of the 17th Edition of the IEEWiring Regulations (BS 7671: 2008).

It includes essential information on the new rules applied to special installations or locations, such as bathrooms, swimming pool locations, camping/caravan sites, marinas, exhibition and show locations, solar photovoltaic power supply systems, and floor and ceiling heating systems, amongst others. It presents clear explanations on inspection, testing, certification and reporting, test instruments and test methods, as well as covering:

  • electricity, the law, standards and codes of practice;

  • assessment of general characteristics;

  • protection against electric shock, thermal effects, overcurrent, undervoltage and overvoltage;

  • isolation and switching;

  • the common rules of equipment selection;

  • switchgear, protective devices and other equipment;

  • wiring systems (including the external influences on them and cable installation methods);

  • protective conductors, earthing and protective bonding;

  • supplies for safety services;

  • the smaller installation, and;

  • specialised installations, such as outdoor lighting, installations in churches, multi-occupancy blocks of flats.

These topics are addressed with pertinent regulation numbers, and a useful appendix lists the relevant Standards. Background guidance and worked examples are provided where appropriate.

Like the earlier editions of this text, this new edition will be a useful aid for designers, installers and verifiers of electrical installations, students of the industry wishing to gain better understanding of the many facets of electrical safety, and ‘duty holders’ as defined by the Electricity at Work Regulations 1989.

About the authors xvii
Preface to the Fourth Edition xix
Acknowledgements xxi
Notation xxiii
Plan and terminology of BS 7671:2008 and supporting publications
1(6)
Plan of BS 7671:2008
1(4)
Terminology of BS 7671:2008
5(1)
Supporting publications
6(1)
Electricity, the law, standards and codes of practice
7(8)
General
7(1)
Electricity: the hazards
7(5)
The law
12(1)
Electricity Safety, Quality and Continuity Regulations 2002
12(1)
The Electricity at Work Regulations 1989 (EWR)
12(1)
Standards and codes of practice
13(2)
The IEE Wiring Regulations: BS 7671
13(1)
Electric signs and high-voltage luminous-discharge-tube installations: BS 559 and BS EN 50107
13(1)
Emergency lighting: BS 5266
13(1)
Electrical equipment for explosive gas atmospheres: BS EN 60079
13(1)
Electrical equipment for use in the presence of combustible dust: BS EN 50281 and BS EN 61241
13(1)
Electrical installations in opencast mines and quarries: BS 6907
13(1)
Fire detection and alarm systems for buildings: BS 5839
14(1)
Telecommunications systems: BS 6701
14(1)
Electric surface heating: BS 6351
14(1)
Lightning protection: BS EN 62305
14(1)
Lift installations: BS 5655 and BS EN 81-1
15(1)
Equipment
15(14)
Scope, object and fundamental principles
17(1)
General
17(3)
Scope
17(1)
General
17(2)
Exclusions from the scope
19(1)
Equipment
20(1)
Relationship with statutory authorities
20(1)
Installations in premises subjected to licensing
20(1)
Object and effects
20(1)
General
20(1)
New materials and inventions
21(1)
Fundamental principles
21(8)
General
21(1)
Electric shock: basic protection
22(1)
Electric shock: fault protection
23(1)
Protection against thermal effects
23(1)
Protection against overcurrent
23(1)
Protection against fault current
24(1)
Protection against voltage disturbances and measures against electromagnetic influences
24(1)
Protection against supply interruption
24(2)
Additions and alterations to an installation
26(1)
Design
26(1)
Selection of electrical equipment
26(1)
Erection, initial verification of electrical installations, and periodic inspection and testing
26(3)
Assessment of general characteristics
29(18)
General
29(1)
Loading, maximum demand and diversity
29(6)
General
29(1)
Lighting: loading and diversity
30(2)
Heating: loading and diversity
32(1)
Cookers: loading and diversity
32(1)
Water heaters: loading and diversity
33(1)
Motors: loading and diversity
33(1)
Stationary equipment: loading and diversity
34(1)
Conventional circuits: loading and diversity
34(1)
Socket-outlet circuits other than conventional circuits: loading and diversity
34(1)
Arrangement of live conductors and type of earthing
35(5)
Arrangement of live conductors
35(1)
Type of earthing
35(5)
Nature of supply
40(4)
General
40(1)
Voltage
40(1)
The nature of current and frequency
41(1)
Prospective short-circuit current
41(1)
External earth fault loop impedance
42(1)
Suitability of supply
43(1)
Type and rating of overcurrent device at the origin
44(1)
Supplies for safety services and standby purposes
44(1)
Installation circuit arrangements
44(1)
External influences
45(1)
Compatibility
45(1)
Maintainability
46(1)
Protection against electric shock
47(42)
General
47(4)
Provisions for basic protection
51(2)
General
51(1)
Basic insulation of live parts
52(1)
Barriers or enclosures
52(1)
Protective measure: automatic disconnection of supply
53(22)
General
53(1)
Basic protection in ADS
54(1)
General requirements for fault protection in ADS
54(6)
Fault protection in ADS: for TN systems
60(7)
Fault protection in ADS: for TT systems
67(2)
Fault protection in ADS: for IT systems
69(2)
Functional extra-low voltage
71(1)
Reduced low-voltage systems
72(3)
Protective measure: double or reinforced insulation
75(2)
Protective measure: electrical separation
77(1)
Protective measure: extra-low voltage provided by SELV or PELV
78(3)
Additional protection
81(1)
Obstacles and placing out of reach
82(1)
Obstacles
82(1)
Protection by placing out of reach
82(1)
Protective measures for application only where the installation is controlled or under the supervision of skilled or instructed persons
83(6)
Non-conducting location
83(2)
Protection by earth-free local equipotential bonding
85(1)
Electrical separation for the supply to more than one item of current-using equipment
86(3)
Protection against thermal effects
89(12)
General
89(2)
Fire caused by electrical equipment
91(4)
Surface temperature
91(1)
Arcs, sparks and high-temperature particles
92(1)
Position of equipment embodying heat sources
92(1)
Flammable liquids
92(1)
Construction of enclosures
93(1)
Live conductors
93(2)
Precautions where particular risks of danger of fire exist
95(5)
General
95(1)
Conditions for evacuation in an emergency
95(2)
Locations with risks of fire due to the nature of processed or stored materials
97(1)
Combustible constructional materials
98(1)
Fire-propagating structures
99(1)
Selection and erection of installations in locations of national, commercial, industrial or public significance
99(1)
Burns
100(1)
Protection against overcurrent, undervoltage and overvoltage
101(38)
General
101(1)
Nature of protective devices
102(2)
Protection against overload
104(6)
General
104(3)
Protection against overload: motors
107(3)
Ring final circuits
110(1)
Protection against fault current
110(2)
Determination of prospective fault current
112(16)
General
112(3)
Calculation of inductive reactance
115(1)
Evaluation of k for different temperatures
116(2)
Calculation of impedance of steel enclosures
118(1)
Resistance and inductive reactance values
118(1)
Temperature adjustments to resistance values
119(1)
Line-to-neutral short-circuits
120(1)
Line-to-line short-circuits
121(1)
Three-phase short-circuit
122(1)
Line-to-earth faults
123(2)
Fault current at the origin of an installation
125(3)
Characteristics of protective devices
128(3)
Overcurrent protection of conductors in parallel
131(3)
Coordination of overload and fault current protection
134(1)
Protection according to the nature of circuits and distribution systems
135(1)
Protection against undervoltage
136(1)
Protection against overvoltage
137(2)
General
137(1)
Temporary overvoltages due to earth faults in the high-voltage system or faults in the low-voltage system
137(1)
Overvoltages of atmospheric origin or due to switching
138(1)
Isolation and switching
139(22)
General
139(4)
Main switch
143(2)
Isolation
145(6)
Switching off for mechanical maintenance
151(2)
Emergency switching and other forms of switching for safety
153(4)
General
153(4)
The firefighter's switch
157(1)
Emergency stopping
157(1)
Functional switching
158(2)
Identification and notices
160(1)
Equipment selection: common rules
161(20)
General
161(1)
Compliance with standards
161(1)
Operational conditions, external influences and accessibility
162(2)
Identification and notices
164(12)
Mutual detrimental influences
176(2)
Compatibility
178(1)
Operation and maintenance manual
179(2)
Wiring systems
181(60)
Wiring systems
181(4)
Wiring systems: general
181(3)
Fire performance of wiring systems
184(1)
External influences
185(14)
External influences: general
185(8)
Temperature
193(1)
Water
194(1)
Solid foreign bodies
194(1)
Corrosive and polluting substances
194(1)
Mechanical damage: general
195(1)
Mechanical damage: concealed and buried cables
196(1)
Damage by fauna, flora and mould growth
197(2)
Building design considerations
199(1)
Solar radiation
199(1)
Proximity to other services: general
199(6)
Proximity of electrical wiring systems to other electrical systems
202(1)
Proximity of electrical wiring systems to communications cables
202(2)
Proximity of electrical wiring systems to nonelectrical systems
204(1)
Methods of installation of cables
205(12)
General
205(1)
Current-carrying capacities, cross-sectional area of conductors and conductor operating temperatures
205(9)
Voltage drop
214(3)
Grouping
217(1)
Resistances of copper conductors
217(1)
Electrical connections
218(6)
Cable supports and cable management systems
224(6)
General
224(1)
Maximum cable support spacings
224(1)
Overhead cables between buildings
224(1)
Supports for conduits
224(1)
Minimum bending radii of cables
224(5)
Maximum cable trunking support spacings
229(1)
Other cable management systems
229(1)
Minimizing the risk of fire
230(1)
Electromagnetic and electromechanical effects
231(2)
Conduit and trunking cable capacities
233(5)
Conduit capacities
233(3)
Trunking capacities
236(2)
Maintainability
238(3)
Switchgear, protective devices and other equipment
241(48)
Switchgear and protective devices: general
241(1)
Switchgear and controlgear
241(2)
Switchgear and controlgear: general
241(2)
Switchgear and controlgear: forms of assembly
243(1)
Selection of devices for overload and fault current protection: general
243(4)
Overcurrent protective devices
247(14)
Fuses: general
253(3)
Semi-enclosed fuses to BS 3036
256(1)
High breaking capacity fuses to BS 88
256(3)
High breaking capacity fuses to BS 1361
259(1)
Cartridge fuses to BS 1362
259(1)
Miniature circuit-breakers to BS 3871 and BS EN 60 898
259(1)
Moulded case circuit-breakers to BS EN 60947-2
260(1)
Residual current devices
261(10)
Residual current devices: general
261(7)
Residual current devices: principles of operation
268
Residual current monitors
210(61)
Identification of overcurrent protective devices
271(1)
Discrimination
272(7)
Discrimination: general
272(1)
Discrimination: high breaking capacity---high breaking capacity fuses
272(1)
Discrimination: miniature circuit-breakers-miniature circuit-breakers
273(2)
Discrimination: miniature circuit-breakers-fuse
275(1)
Discrimination: residual current devices
275(4)
Other equipment
279(10)
Accessories
279(1)
Luminaires and lighting points
279(1)
Heaters for liquids and other substances, including water
279(2)
Heating conductors and electric surface heating systems
281(1)
Transformers
281(1)
Rotating machines
281(8)
Protective conductors, earthing and equipotential bonding
289(36)
Protective conductors
289(18)
Protective conductors: general
289(1)
Protective conductors: types
290(3)
Protective conductors: thermal withstand
293(1)
Protective conductors: sizes
294(4)
Protective conductors: for combined protective and functional purposes
298(2)
Protective conductors: electrical continuity
300(1)
Protective conductors: formed by steel conduit, trunking, etc
300(1)
Protective conductors: mineral-insulated cables
301(1)
Protective conductors of ring final circuits
301(1)
Protective conductors: armouring
302(3)
Protective conductors: `clean' earths
305(1)
Protective conductors: proving and monitoring
306(1)
Earthing
307(7)
Earthing: general
307(1)
Earthing: responsibilities
307(1)
Earthing: connection to Earth and system arrangements
308(1)
Earthing conductors
308(3)
Earthing electrodes
311(2)
Main earthing terminals
313(1)
Earthing: accessories and other equipment
314(1)
Earthing requirements for the installation of equipment having high protective conductor currents
314(4)
General
314(1)
Additional requirements for earthing of equipment in TN and TT systems
315(2)
Minimum cross-sectional area of protective conductors of final and distribution circuits
317(1)
Residual current device compatibility
317(1)
IT systems
318(1)
Protective bonding
318(7)
Main protective bonding
318(3)
Supplementary bonding
321(1)
Bonding clamps
322(3)
Specialized installations
325(22)
General
325(1)
Emergency lighting
325(1)
Fire detection and alarm systems
326(5)
Petrol filling stations and liquid petroleum gas stations
331(1)
Installations in dusty environments
331(1)
Installations in underground and multistorey car parks, etc
332(1)
Installations in multi-occupancy blocks of flats
332(1)
Installations in `Section 20 buildings'
332(2)
Installations in churches
334(1)
Installations in thatched properties
334(1)
Extra-low voltage lighting
335(3)
Outdoor lighting installations, highway power supplies and street furniture
338(3)
General
338(1)
Protection against electric shock
339(1)
Isolation and switching
340(1)
Cable installation and identification
340(1)
Security lighting
341(1)
Welding equipment
342(1)
Entertainers' equipment
342(1)
Generator sets
342(5)
Safety services
347(6)
Safety services: general
347(1)
Common sources
348(2)
Parallel and nonparallel sources
350(1)
Circuit and equipment requirements
351(1)
Protection against overcurrent and electric shock under fault conditions
351(2)
The smaller installation
353(36)
Scope
353(1)
The IEE On-Site Guide and the NICEIC Domestic Electrical Installation Guide
353(1)
User's requirements
353(2)
Wiring systems
355(1)
Electricity distributor's requirements
355(1)
Assessment of supply characteristics
355(1)
`Meter tails'
356(1)
System earthing arrangements
357(3)
Main protective bonding
360(1)
Minimum cross-sectional area of earthing and main protective bonding conductors
360(2)
Supplementary bonding
362(1)
Devices for protection against overcurrent and for fault protection
362(1)
Devices for isolation and switching
363(1)
Final circuit design
363(21)
Remote buildings
384(1)
Minimum number of socket-outlets in domestic premises
385(1)
Modifications to existing installations
385(2)
Inspection, testing, verification and certification of the smaller installation
387(2)
Special installations and locations
389(70)
General
389(1)
Locations containing a bath or shower
389(9)
General
389(2)
Zonal arrangements
391(2)
Degrees of ingress protection
393(1)
Equipment permitted in and outside the various zones
393(1)
Electric shock
393(2)
Supplementary bonding
395(2)
Shaver supply units and socket-outlets
397(1)
Mobile and nonfixed current-using equipment
397(1)
Electric heating embedded in the floor
398(1)
Other equipment
398(1)
Swimming pools and other basins
398(9)
General
398(1)
Additional requirements relating to electric shock
399(1)
Additional requirements relating to selection and erection of equipment
399(8)
Rooms and cabins containing sauna heaters
407(1)
General
407(1)
Construction-site installations
407(6)
General
407(2)
Protection against electric shock
409(2)
Selection of equipment
411(1)
Isolation and switching
412(1)
Agricultural and horticultural premises
413(8)
General
413(1)
Protection against electric shock
413(3)
Fire and harmful thermal effects
416(1)
Selection of equipment
417(1)
Automatic life support for high-density livestock rearing
417(4)
RCDs in series
421(1)
Conducting locations with restricted movement
421(1)
General
421(1)
Protection against electric shock
422(1)
Electrical installations in caravan/camping parks and similar locations
422(7)
General
422(2)
Requirements for safety
424(1)
Equipment: selection and erection
424(1)
Typical caravan park distribution layout
424(5)
Marinas and similar locations
429(1)
General
429(1)
Protection against electric shock
429(1)
External influences
430(1)
Equipment: selection and erection
430(1)
Exhibition shows and stands
430(5)
General
430(1)
Definitions
430(5)
Protection against electric shock and protection against fire
435(1)
Equipment: selection and erection
435(1)
Solar photovoltaic power supply systems
435(5)
General
435(4)
Definitions
439(1)
Earthing a live conductor on the d.c. side
440(1)
Protection against electric shock, overcurrent and electromagnetic interference
440(1)
Equipment: selection and erection
440(1)
Mobile or transportable units
440(5)
General
440(4)
Source of supply
444(1)
Protection against electric shock
444(1)
Equipment: selection and erection
445(1)
Electrical installations in caravans and motor caravans
445(6)
General
445(2)
Requirements for safety
447(1)
Wiring systems
448(1)
Main isolating switch, caravan inlets and connection leads
448(2)
Luminaires and accessories
450(1)
Annex A of Section 721: guidance on 12 V d.c. installations
450(1)
Temporary electrical installations for structures, amusement devices and booths at fairgrounds, amusement parks and circuses
451(1)
General
451(1)
Electrical supplies and protection against electric shock
451(1)
Motors: protection against excess temperature
452(1)
Equipment: selection and erection
452(1)
Floor and ceiling heating systems
452(7)
General
452(3)
Heating units
455(1)
Protection against electric shock
456(1)
Protection against harmful thermal effects
456(1)
Heating-free areas
457(1)
Wiring systems
457(1)
Identification and notices
457(2)
Inspection, testing, certification and reporting
459(78)
Inspection, testing, certification and reporting: general
459(1)
Test instruments
459(3)
General
459(2)
Insulation test instruments
461(1)
Continuity test instruments
461(1)
Earth loop impedance test instruments
461(1)
Applied voltage test instruments
461(1)
Earth electrode test instruments
461(1)
Residual current device test instruments
462(1)
Voltage indication
462(1)
Phase sequence test instruments
462(1)
Safety in electrical testing
462(1)
Test methods
463(20)
General
463(1)
Insulation tests
464(1)
Barriers and enclosures
465(2)
Non-conducting location tests
467(1)
Polarity tests
467(2)
Continuity tests
469(7)
Earth loop impedance and prospective fault current tests All Applied voltage tests
476(4)
Earth electrode tests All Residual current device tests
480(1)
Protection by SELV, PELV or electrical separation
481(1)
Verification of phase sequence
481(1)
Functional testing
481(2)
Verification of voltage drop
483(1)
Initial verification
483(29)
General
483(1)
Inspection
484(9)
Testing
493(1)
Initial certification: general
493(19)
Initial certification: caravans
512(1)
Initial certification: minor works
512(1)
Periodic inspection and testing
512(22)
General
512(4)
Intervals between periodic inspection and testing
516(2)
Approximate age of an installation
518(1)
Periodic inspection and testing
519(4)
Reporting
523(11)
Alterations and additions
534(1)
General
534(1)
Inspection
534(1)
Testing
534(1)
Certification
534(1)
Inspection, testing and certification of specialized installations
535(2)
Fire detection and alarm systems in buildings
535(1)
Emergency lighting
535(1)
Petrol filling stations
535(2)
Appendix Standards to which reference has been made 537(8)
Bibliography 545(2)
Index of figures 547(4)
Index of tables 551(6)
Index of regulation numbers 557(22)
Subject index 579
EurIng Geoffrey Stokes CEng FIEE FCIBSE was Principal Engineer at the National Inspection Council for Electrical Installation Contracting, and is now a consultant.





EurIng John T Bradley BSc CEng MIET FCIBSE is Principal Engineer at the Electrical Safety Council.