%{search_type} search results

• Introduction-- Use of guidance-- General definitions applicable to L1 and L2-- Testing-- The conservation of fuel and power in dwellings-- The legal requirement for the conservation of fuel and power in dwellings-- General guidance-- Design and construction-- Work on existing dwellings-- The conservation of fuel and power in buildings other than dwellings-- The legal requirement-- General guidance-- Design-- Construction-- Providing information-- Work on existing buildings-- Tables of U--values-- Windows, doors and rooflights-- Roofs, walls and floors-- Thermal conductivity and density of building materials-- The calculation of U--values for walls-- Background theory-- Example calculations-- The calculation of U--values for ground floors-- Introduction-- Solid ground floors-- Suspended floors-- Compensation calculations for glazing-- Introduction-- Example calculations-- Target U--value examples-- SAP ratings and the carbon index-- SAP-- Carbon factor and carbonindex-- Relationship between SAP and CI-- Calculation of trade--off examples-- Methods of meeting the lighting standard-- Lamp and luminaire efficiency-- Lighting controls-- Example calculations-- CPR calculations
• methods for office buildings-- Origins of the CPR method for office buildings-- The carbon performance rating for mechanical ventilation-- The carbon performance rating for air conditioning and mechanical ventilation-- The carbon performance rating and the whole building method-- Example calculations-- Solar overheating calculations-- Definitions-- Sources of data for the parameters-- Example calculation-- Air tightness and air leakage testing-- The importance of air tightness-- The mechanisms of air infiltration-- The measurement of air leakage-- The air leakage criterion-- Air leakage paths-- Alternative test methods-- References.
• (source: Nielsen Book Data)

The conservation of fuel and power in buildings is an important part of the UK governmenta s strategy to reduce national energy conservation. The revision to Part L of the Building Regulations, which came into force on 1 April 2002, lays down detailed and extensive requirements for conserving energy in almost all buildings and it covers most potential causes of building energy consumption. This guide explains these detailed requirements and shows how they apply to particular cases, with the use of numerous worked examples. It includes a chapter on air tightness and leakage testing, a topic with which many building professionals are unfamiliar.
(source: Nielsen Book Data)

• Preface
• Acknowledgements
• 1 Power supplies in the UK
• 2 Substations and control rooms
• 3 Site distribution systems
• 4 Cable management systems
• 5 Electricity on construction sites
• 6 Standby power supplies
• 7 Ground earthing
• 8 Cathodic protection
• 9 Lightning protection
• 10 Special installations or locations
• 11 Electrical safety
• 12 Standards, specifications and codes of practice
• 13 Distribution transformers
• 14 Switchgear
• 15 Rotating Machines
• 16 HBC fuses and fusegear in low voltage systems
• 17 Motor control gear
• 18 Lighting
• 19 Mains cables
• 20 Selection of wiring systems
• 21 Control and protection of low voltage installations
• 22 Protective systems
• 23 Power factor correction and tariffs
• British Standards, Codes of Practice and IEC Document Titles
• Index.
• (source: Nielsen Book Data)

Handbook of Electrical Installation Practice covers all key aspects of industrial, commercial and domestic installations and draws on the expertise of a wide range of industrial experts. Chapters are devoted to topics such as wiring cables, mains and submains cables and distribution in buildings, as well as power supplies, transformers, switchgear, and electricity on construction sites. Standards and codes of practice, as well as safety, are also included. Since the Third Edition was published, there have been many developments in technology and standards. The revolution in electronic microtechnology has made it possible to introduce more complex technologies in protective equipment and control systems, and these have been addressed in the new edition. Developments in lighting design continue, and extra-low voltage luminaries for display and feature illumination are now dealt with, as is the important subject of security lighting. All chapters have been amended to take account of revisions to British and other standards, following the trend to harmonised European and international standards, and they also take account of the latest edition of the Wiring Regulations. This new edition will provide an invaluable reference for consulting engineers, electrical contractors and factory plant engineers.
(source: Nielsen Book Data)

• The materials used in timber engineering
• Stress levels for solid timber
• Loading
• The design of beams - general notes
• Beams of solid timber
• Multiple section beams
• Glulam beams
• Thin web beams
• Lateral stability of beams
• Structure composite lumber
• Solid timber decking
• Deflection. Practical and special considerations
• Tension members
• General design of compression members
• Columns of solid timber
• Multi-member columns
• Glulam columns
• Mechanical joints
• Glue joints, including finger joints
• Stress skin panels
• Trusses
• Structural design for fire resistance
• Consideration of overall stability
• Preservation.Durability.Moisture content
• Considerations for the structural use of hardwood
• Prototype testing
• Design to eurocode 5
• Miscellaneous tables.
• (source: Nielsen Book Data)

This major reference manual covers both overall and detail design of structural timber, including aspects such as shear deflection, creep, dynamic and lateral stability considerations for flexural members. It has been substantially revised to take account of changes since the last edition, nearly 20 years ago, and to include the latest revision of British Standard BS 5268-2 : 2002, which has brought design concepts closer to European practice and Eurocode 5. New features of the Third Edition include:* revised information on bolt values including a consideration of improved performance using 8.8 grade bolts* new chapters on composite sections and Eurocode 5 on structural timber* new developments in materials and products* horizontal roof and floor diaphragms* vertical shear walls The manual continues to provide extensive tables and coefficients that will save the practising engineer many design hours. It will also be of interest as a reference for civil engineering undergraduates and to timber manufacturers. Whilst the design examples in the book are based on BS 5268, a large part of the content will have international appeal, whatever code or standard is being used. From reviews of the last edition "the complete design manual ...a 'must'" -Timber Trades Journal "the manual continues its established position as an authoritative reference and in providing numerous time saving design aids." -Institute of Wood Science Journal.
(source: Nielsen Book Data)
This major reference manual covers both overall and detail design of structural timber, including aspects such as shear deflection, creep, dynamic and lateral stability considerations for flexural members. Available for the first time in paperback, the Third Edition was substantially revised to take account of the many changes since the previous edition was published in 1984. It is based on British Standard BS 5268-2: 2002, which brought design concepts closer to European practice and Eurocode 5. Features of the Third Edition include: information on bolt values including a consideration of improved performance using 8.8 grade bolts. chapters on composite sections and Eurocode 5 on structural timber the latest developments in materials and products horizontal roof and floor diaphragms vertical shear walls The manual also provides extensive tables and coefficients that will save the practising engineer many design hours. It will also be of interest as a reference for civil engineering undergraduates and to timber manufacturers. Whilst the design examples in the book are based on BS 5268, a large part of the content will have international appeal, whatever code or standard is being used. From reviews of the last edition 'the complete design manual ...a 'must' - Timber Trades Journal 'the manual continues its established position as an authoritative reference and in providing numerous time saving design aids.' - Institute of Wood Science Journal Cover design by Andrew Love The Authors E. Carl Ozelton is a consulting engineer specialising in the design and detailing of all forms of timber engineering and timber frame construction. Prior to setting up his own practice in 1977 he was Technical Director of Walter Holme & Sons Ltd, Timber Engineers, Liverpool and Technical Director of Prestoplan Homes Ltd, Timber Frame Manufacturers, Preston. He is a Chartered Structural Engineer, a Fellow of the Institution of Structural Engineers and an Associate of the Institute of Wood Science. He was awarded first prize in the Plywood Design Award 1966/7 sponsored by the Timber Trade Federation. Jack. A. Baird, a Chartered Structural Engineer, specialised initially in structural steel work before becoming Tachnical Manager of Newsum Timber Engineers, Following which he worked on BSI documents such as design code BS 5268. In 1970 he started the Swedish Timber Council, subsequently to become the Swedish Finnish Timber Council, in which role he produced factual information on many aspects of timber such as structural timber, and helped to persuade Nordic sawmillers to machine stress grade at source to BS 4978 under the Kitemark scheme. He co-authored the first edition of Timber Designers' Manual with Carl Ozelton and was responsible for seeing the second edition through the press. Also of Interest Structural Timber Design to Eurocode 5 Jack Porteous & Abdy Kermani 1 4051 4638 9 978 14051 4638 8 Structural Masonry Designers' Manual Third Edition W.G. Curtin, G. Shaw, J.K. Beck & W.A. Bray Revised by David Easterbrook 0 6320 5612 6 978 06320 5612 5 Structural Foundation Designers' Manual Second Edition W.G. Curtin, G. Shaw, G.I. Parkinson & J.M. Golding Revised by N.J. Seward 1 4051 3044 X 978 14051 3044 8 Steel Designers' Manual Sixth Edition The Steel Construction Institute 1 4051 3412 7 978 14051 3412 5.
(source: Nielsen Book Data)

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.
(source: Nielsen Book Data)

• About the Authors. Preface. Acknowledgements. Symbols. Definitions.
• 1 Calculation of the cross-sectional areas of circuit live conductors. General circuits. Circuits in thermally insulating walls. Circuits totally surrounded by thermally insulating material. Circuits in varying external influences and installation conditions. Circuits in ventilated trenches. Circuits using mineral-insulated cables. Circuits on perforated metal cable trays. Circuits in enclosed trenches. Circuits buried in the ground. Grouped circuits not liable to simultaneous overload. Circuits in low ambient temperatures. Grouped ring circuits. Motor circuits subject to frequent stopping and starting. Circuits for star-delta starting of motors. Change of parameters of already installed circuits. Admixtures of cable sizes in enclosures. Grouping of cables having different insulation.
• 2 Calculation of voltage drop under normal load conditions. The simple approach. The more accurate approach taking account of conductor operating temperature. The more accurate approach taking account of load power factor. The more accurate approach taking account of both conductor operating temperature and load power factor. Voltage drop in ring circuits. Voltage drop in ELV circuits.
• 3 Calculation of earth fault loop impedance. The simple approach. The more accurate approach taking account of conductor temperature. Calculations taking account of transformer impedance. Calculations concerning circuits fed from sub-distribution boards. Calculations where conduit or trunking is used as the protective conductor. Calculations where cable armouring is used as the protective conductor.
• 4 Calculations concerning protective conductor cross-sectional areas. Calculations when the protective device is a fuse. Calculations when an external cpc is in parallel with the armour. Calculations when the protective device is an mcb. Calculations when the protective device is an RCD or RCBO.
• 5 Calculations related to short circuit conditions. a. c. single-phase circuits. The more rigorous method for A.C. single-phase circuits. a.c. three-phase circuits.
• 6 Combined examples. Appendix The touch voltage concept. Index.
• (source: Nielsen Book Data)

Manual calculations are still extensively used and in particular are necessary for checking and verifying various software calculation design packages. It is highly recommended that users of such software familiarise themselves with the rudiments of these calculations prior to using the software packages. This essential book fills the gap between software and manual calculations. It provides the reader with all the necessary tools to enable accurate calculations of circuit designs. Rather than complex equations, this book uses extensive worked examples to make understanding the calculations simpler. The focus on worked examples furnishes the reader with the knowledge to carry out the necessary checks to electrical cable sizing software programmes. Other key features include: * Updated information on 230 volt references and voltage drop under normal load conditions * New sections on buried cables that take into account soil thermal conductivity, trenches and grouping, allowing readers to carry out accurate cables sizing * Information and examples of steel wired armour cables, new to this edition. This includes sufficiency during short circuits and, for cables with externally run CPCs, gives unique fault conditions. * Covers calculations of cross-sectional areas of circuit live conductors * Earth fault loop impedances * Protective conductor cross-sectional areas and short circuit conditions * Short circuit protection. The last chapter combines all of the calculations of the previous chapters to enable the reader to complete an accurate design of an installation circuit under all conditions. A unique tool for detailed electrical installation trade, Electrical Installation Calculations, Fourth Edition is invaluable to electricians, electrical designers, installers, technicians, contractors, and plant engineers. Senior electrical engineering students and technical colleges, junior engineers, and contracts managers will also find this text useful.
(source: Nielsen Book Data)