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Electrical Bonding: a Survey of Requirements, Methods, and Specifications
https://ntrs.nasa.gov/search.jsp?R=19980201283 2020-06-18T00:29:43+00:00Z View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by NASA Technical Reports Server Electrical Bonding: A Survey of Requirements, Methods, and Specifications R. W. Evans Computer Sciences Corporation, Huntsville, Alabama Prepared for Marsha11 Space Flight Center under Contract NAS8-60000 and sponsored by the Space Environments and Effects Program managed at the Marshall Space Flight Center - -- March 1998 The NASA ST1 Program Office.. .in Profile Since its founding, NASA has been dedicated to CONFERENCE PUBLICATION. Collected the advancement of aeronautics and space papers from scientific and technical conferences, science. The NASA Scientific and Technical symposia, seminars, or other meetings sponsored Information (STI) Program Office plays a key or cosponsored by NASA. part in helping NASA maintain this important role. SPECIAL PUBLICATION. Scientific, technical, or historical information from NASA programs, The NASA ST1 Program Office is operated by projects, and mission, often concerned with Langley Research Center, the lead center for subjects having substantial public interest. NASA's scientific and technical information. The NASA ST1 Program Office provides access to the TECHNICAL TRANSLATION. NASA ST1 Database, the largest collection of English-language translations of foreign scientific aeronautical and space science ST1 in the world. The and technical material pertinent to NASA's Program Office is also NASA's institutional mission. mechanism for disseminating the results of its research and development activities. These results Specialized services that complement the ST1 are published by NASA in the NASA ST1 Report Program Office's diverse offerings include creating Series, which includes the following report types: custom thesauri, building customized databases, organizing and publishing research results. -
AC 21-99 Aircraft Wiring and Bonding Table of Contents
Advisory Circular AC 21-99(0) NOVEMBER 2005 AIRCRAFT WIRING AND BONDING CONTENTS 16. Thermocouple Wire Soldering and 1. References Installation 2. Purpose 17. Aged Aircraft Wiring 3. Status of this AC 18. Aircraft Electrical System – Inspection Section 1 19. Fibre Optics 1. Introduction Section 2 1. REFERENCES 1. Wire and Cable Civil Aviation Safety Regulations (CASR) Part 21. 2. Identifying Wire and Cable RTCA DO-160D: Environmental 3. Preparing Wire and Cable Conditions and Test Procedures for Airborne 4 Electrical Wire Installation Equipment Section 16 (Power Input). 5. Repairing Wire and Cable SAE Aerospace AS50881 Wiring 6. Solderless Terminations and Splices Aerospace Vehicles. 7. Soldering Federal Aviation Administration (FAA) Advisory Circular 43.13-1B: Acceptable 8. Lacing and Tying Methods, Techniques and Practices – Aircraft 9. Wiring: Lock, Shear and Seal Inspection and Repair. 10. General Purpose Connectors 2. PURPOSE 11. Electric Connector Sealing Compound 12. RF Connectors and Cabling The purpose of this Advisory Circular is to provide guidance material for maintenance of aircraft 13. Bonding and Grounding electrical systems and bonding of aircraft. 14. Earthing and Bonding of Aircraft and Ground Support Equipment 3. STATUS OF THIS AC 15. Installation of Busbars, Junction Boxes, This is the first issue of this Advisory Circular to be Protective Devices and Terminal Boards written on aircraft wiring and bonding procedures. Approved Neville Probert General Manager Manufacturing, Certification and New Technologies Office Advisory Circulars are intended to provide advice and guidance to illustrate a means, but not necessarily the only means, of complying with the Regulations, or to explain certain regulatory requirements by providing informative, interpretative and explanatory material. -
Applying the National Electrical Code to Substations Jeff Heinemann – Ulteig Mark Scheid – Ulteig 3350 38 Th Ave
Applying the National Electrical Code to Substations Jeff Heinemann – Ulteig Mark Scheid – Ulteig 3350 38 th Ave. S Fargo, ND 701.280.8500 [email protected] & [email protected] Abstract: A discussion of the National Electrical Code (NEC) and National Electrical Safety Code (NESC) design considerations as applied to utility substations, including working clearances, cable tray, cables, conduit, conduit fill, and station services in electrical equipment enclosures. Through the guidance of the National Electrical Code (NEC), we can meet the need for safe low-voltage designs by applying the NEC in substations whenever possible and practical. This paper will primarily focus on low-voltage, single phase designs (600V or less). In order to apply the NEC to substation design, we must first and foremost educate ourselves and understand the intent of the NEC and then decide how it can be utilized in what we are doing. The NEC and NESC contain many applications for safeguarding personnel and equipment. The topics in these publications are so broad that it would be difficult or even next to impossible to discuss in their entirety. There are many topics such as grounding and bonding, warning signs, illumination, PT and CT secondary grounding requirements, etc. that this paper will not address. This paper will discuss a few specific applications of the NEC while referencing the use of the more prevalent NESC and IEEE documents in utility applications. The purpose of the NEC is the practical safeguarding of persons and property from hazards arising from the use of electricity (Section 90.1). Refer to Section 90.2 of the NEC for a listing of which installations are covered and those that are not. -
BS 7430:2011+A1:2015 Code of Practice for Protective Earthing Of
BS 7430:2011+A1:2015 BSI Standards Publication Code of practice for protective earthing of electrical installations --``,`,`,`,,,,`,,,,,,,`,,`,,```,-`-`,,`,,`,`,,`--- www.TeraStandard.com BS 7430:2011+A1:2015 BRITISH STANDARD Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued. © The British Standards Institution 2015 Published by BSI Standards Limited 2015 ISBN 978 0 580 90007 5 ICS 13.260; 29.240.01 The following BSI references relate to the work on this standard: Committee reference GEL/600 Drafts for comment 11/30249994 DC, 15/30322343 DC Publication history First published as CP 1013:1965 First published as BS 7430, January 1992 Second edition, November 1998 Third (present) edition, December 2011 Amendments issued since publication Date Text affected August 2015 A1 - See Foreword --``,`,`,`,,,,`,,,,,,,`,,`,,```,-`-`,,`,,`,`,,`--- www.TeraStandard.com BRITISH STANDARD BS 7430:2011+A1:2015 Contents Foreword iii 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 4 Earthing principles 5 5 HV/LV interface 12 6 Low voltage installations 12 7 Generators 19 8 Special installations 29 9 Earth electrode systems 33 10 Inspection and testing of the earthing system 67 Annexes Annex A (informative) Guidance on typical HV/LV interfaces 80 Annex B (informative) Typical simple installation of an earthing system for a small LV substation 86 Bibliography 89 List of figures Figure 1 – TN-S system 7 Figure 2 – TN-C system 8 Figure 3 – TN-C-S system 9 Figure4–TTsystem -
Code of Practice CAI COP 03
Code of Practice CAI COP 03 - March 2010 Electrical Safety Requirements for Signal Reception Systems (excluding CATV) CCodeode ooff PPracticeractice CAI COP 03 – March 2010 EElectricallectrical SSafetyafety RRequirementsequirements fforor SSignalignal RReceptioneception SSystemsystems ((excludingexcluding CCATV)ATV) This document has been prepared by the Board of Directors of the Confederation of Aerial Industries Ltd (CAI). AIMS OF THE CAI · - To raise standards within the Industry. · - To represent its Members to Government, Local Authorities, National Bodies etc. · - To unite the Industry on its common aims. · - To keep abreast of technological change. · - To promote the membership to its prospective customers. SOME SERVICES AVAILABLE · - Information Service. · - Training Courses. · - Technical Advice. The CAI actively encourages all companies in the Industry to further its aims and to use the services available. Full details and application forms to join the CAI are available from the Secretary. This Code of Practice does not purport to include all the necessary provisions of a contract. Users of this Code are responsible for its correct application. CAI Codes of Practice are revised when necessary by the issue either of amendments or of revised editions. It is important that users of CAI Codes of Practice should ascertain that they are in possession of the latest amendments or editions. Every effort has been made to ensure that the information contained within this Code of Practice is correct at the time of going to press. Any person who, when making use of this Code of Practice, encounters any inaccuracy or ambiguity, is requested to notify the CAI without delay in order that the matter may be investigated and appropriate action taken.