Neidle Electrical Contracting

2. Auflage 2013
ISBN: 978-1-4831-4069-8
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 200 Seiten, Web PDF

Electrical Contracting, Second Edition is a nine-chapter text guide for the greater efficiency in planning and completing installations for the design, installation and control of electrical contracts. This book starts with a general overview of the efficient cabling and techniques that must be employed for safe wiring design, as well as the cost estimation of the complete electrical contract. The subsequent chapters are devoted to other electrical contracting requirements, including electronic motor control, lighting, and electricity tariffs. A chapter focuses on the IEE Wiring Regulations and Statutory Regulations to ensure compliance to the fundamental requirements for safety. The discussion then shifts to visual inspection and testing in accordance with the IEE Wiring Regulations. The last chapter describes the special role of the Joint Industrial Council for Electrical Installation Contracting in introducing a rational and equitable incomes policy into the industry. This text includes many worked examples and illustrations to demonstrate how the technical and commercial aspects are put into practice.

Autoren/Hrsg.

Neidle, Michael

Inhaltsverzeichnis

1;Front Cover;1
2;Electrical Contracting;4
3;Copyright Page;5
4;Table of Contents;8
5;Preface;6
6;Chapter 1. Modern wiring systems;14
6.1;Temperature considerations;15
6.2;Mechanical damage;15
6.3;Conduit system;16
6.4;Metallic conduit;16
6.5;Metallic trunking systems;20
6.6;Plastics trunking;20
6.7;Other trunking systems and ancillaries;21
6.8;PVC-insulated and sheathed cables;24
6.9;Mineral-insulated cables;25
6.10;Other cables;27
7;Chapter 2. Fundamental electrical installation design;29
7.1;Present-day aspects;29
7.2;Preliminaries;29
7.3;Network earthing;30
7.4;Choice of wiring;30
7.5;Distribution;31
7.6;Disconnection times;32
7.7;Final circuits;33
7.8;Relation between protective devices and cables;33
7.9;Short circuit considerations;34
7.10;Other constraints;36
7.11;Electric shock protection;36
7.12;Residual current devices;38
7.13;k Values;39
7.14;Alternative considerations;39
7.15;Design example;40
8;Chapter 3. Estimating;46
8.1;Materials;48
8.2;Labour;48
8.3;Scaffold;50
8.4;Drawing office costs;50
8.5;Other costs;50
8.6;Overheads;51
8.7;Fixed price allowance;51
8.8;Summary;53
8.9;Profit;54
8.10;On cost calculation for labour;56
8.11;Estimating with the aid of a computer;68
9;Chapter 4. Electronic motor control;72
9.1;Static frequency converter types;73
9.2;The comparator;75
9.3;The six pulse PAM converter;76
9.4;PAM control circuits;77
9.5;Application of static frequency converters;79
9.6;Special motor designs;82
10;Chapter 5. Lighting – technological development simplifies the lighting choices;84
10.1;Lamp development;84
10.2;Discharge lamps;86
10.3;Compact fluorescent lamps;88
10.4;Luminaire development;90
10.5;Control systems;91
10.6;Computer-based systems;93
11;Chapter 6. Electricity tariffs;95
11.1;Consumer classes and tariff groups;95
11.2;Energy management;96
11.3;Choice of tariff;97
11.4;Other commercial matters;98
11.5;The meter;98
11.6;Domestic metered tariffs;101
11.7;Industrial demand tariffs;104
11.8;Overview;108
11.9;2-Step block tariff example;108
12;Chapter 7. A review of wiring regulations;110
12.1;The IEE Wiring Regulations and Statutory Regulations;110
12.2;The IEE Wiring Regulations and International Wiring Rules;111
12.3;Scope of the IEE Wiring Regulations;112
12.4;Contents;113
12.5;Protection for safety;115
12.6;Worked examples;120
12.7;Isolation and switching;126
12.8;Symbols;128
12.9;International protection (IP) enclosures;130
12.10;Bathroom safety;130
12.11;Trunking;131
13;Chapter 8. Inspection and testing;134
13.1;Visual inspection;135
13.2;Checking the design;138
13.3;Compliance with British Standards;140
13.4;Physical checklist;142
13.5;Trunking checklist;143
13.6;Hazardous areas;144
13.7;Mobile caravan sites (471-42-46);144
13.8;Testing sequence;145
13.9;Continuity of ring circuit conductors (App. 15, item 2);146
13.10;Continuity of protective conductors (613-3);150
13.11;Earth electrodes;153
13.12;Insulation resistance;157
13.13;Electrical separation (613-11);162
13.14;Reduced voltage systems;164
13.15;Insulation of non-conducting floors and walls;165
13.16;Polarity;166
13.17;Earth fault loop impedance;166
13.18;Determination of ZE (App. 15, item 5);171
13.19;Example;171
13.20;Determination of Zs;171
13.21;Operation of rccbs and fvcbs;180
13.22;Fault voltage devices (fvcbs) (613-16);181
13.23;Alterations to an installation (621-1);182
13.24;Periodic inspection and testing (631-1);184
13.25;Certification;184
13.26;Periods betwen tests (App. 16);186
14;Chapter 9. The work of the Joint Industrial Council for Electrical Installation Contracting (JIB);187
14.1;Organization;188
14.2;Dispute procedures;190
14.3;Membership and welfare benefits;191
14.4;Wages and Conditions;192
14.5;Grading and training;193
14.6;Productivity;194
14.7;Employment;197
14.8;Manpower;199
14.9;Conclusion;200