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MSFC-RQMT-2310 - TETHERED SATELLITE SYSTEM GROUND INTEGRATION REQUIREMENTS DOCUMENT (GRID) Organization: MSFC
Date: 1995-01-01
NG TS 3.08.29 - NATIONAL GRID TECHNICAL SPECIFICATIONS - GROUND DEPLOYED OPTICAL FIBRE CABLE - ARCHIVED; ISSUE 1 Organization: NG
Date: 1994-12-01
Description: This cable shall be capable of being laid directly on the ground surface, or in a shallow slit trench, or be strung between existing or temporary structures.
IPC - J-STD-013 - IMPLEMENTATION OF BALL GRID ARRAY AND OTHER HIGH DENSITY TECHNOLOGY Organization: IPC
Date: 1996-07-01
Description: The focus of the document is on design through testing issues related to Ball Grid Array and other high performance packages including fine pitch, ultra fine pitch and thru-hole PGA.
ASTM D6982 - STANDARD PRACTICE FOR DETECTING HOT SPOTS USING POINT-NET (GRID) SEARCH PATTERNS Organization: ASTM
Date: 2009-11-15
Description: This practice provides equations and nomographs, and a reference to a computer program, for calculating probabilities of detecting hot spots (that is, localized areas of soil or groundwater contamination) using point-net (that is, grid) search patterns. Hot spots, more generally referred to as targets, are presumed to be invisible on the ground surface.
TIA-1194 - TELECOMMUNICATIONS USER PREMISES EQUIPMENT SURGE RESISTIBILITY OF SMART GRID EQUIPMENT CONNECTED TO EITHER DC OR 120/240 V SINGLE PHASE AC AND METALLIC COMMUNICATION LINES Organization: TIA
Date: 2011-11-18
Description: For equipment installed in the smart grid (or indeed, anywhere), the impedance of the ground connections may be significant.
IEEE 81 - GUIDE FOR MEASURING EARTH RESISTIVITY, GROUND IMPEDANCE, AND EARTH SURFACE POTENTIALS OF A GROUNDING SYSTEM Organization: IEEE
Date: 2012-12-05
Description: The test methods and techniques used to measure the electrical characteristics of the grounding system include the following topics: a) Establishing safe testing conditions b) Measuring earth resistivity c) Measuring the power system frequency resistance or impedance of the ground system to remote earth d) Measuring the transient (surge) impedance of the ground system to remote earth e) Measuring step and touch voltages f) Verifying the integrity of the grounding system g) Reviewing common methods and procedures for performing ground testing h) Reviewing instrumentation characteristics and limitations i) Reviewing various factors that can distort test measurements IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System Purpose The purpose of this guide is to present practical instrumentation methods that may be used for measuring soil resistivity, the impedance to remote earth, step and touch voltages, and current distributions in ground grids associated with electric utility facilities. These grids typically consist of interconnected grounding systems ranging in complexity from a few ground rods to large grids with many ground rods or wells, buried conductors, and external ground connections.
NG TS 3.08.01 - NATIONAL GRID TECHNICAL SPECIFICATIONS - HELICOPTER RADIO - ARCHIVED; ISSUE 1 Organization: NG
Date: 1992-09-01
Description: This Specification defines the requirement for equipment to page the helicopter in flight and for radio communications equipment that may only be used whilst the aircraft is on the ground. Refer to Appendix A for details of restrictions on use.
NASA - UFGS-28 05 26.00 40 - GROUNDING AND BONDING FOR ELECTRONIC SAFETY AND SECURITY Organization: NASA
Date: 2016-08-01
Description: Ensure drawings show plan layout of each grounding electrode, ground mat, ground grid, substation ground bus, interconnecting grounding conductor, and tap connections to steel building columns and outdoor electrical equipment.
IEEE 1299 - GUIDE FOR THE CONNECTION OF SURGE ARRESTERS TO PROTECT INSULATED, SHIELDED ELECTRIC POWER CABLE SYSTEMS Organization: IEEE
Date: 1996-12-10
Description: Grounding electrode techniques, pole ground values, and system ground grid values are not addressed or considered in this document.
IEEE - C62.22.1 - GUIDE FOR THE CONNECTION OF SURGE ARRESTERS TO PROTECT INSULATED, SHIELDED ELECTRIC POWER CABLE SYSTEMS - IEEE 1299 Organization: IEEE
Date: 1996-12-10
Description: Grounding electrode techniques, pole ground values, and system ground grid values are not addressed or considered in this document.
PIP ELEGL03 - GUIDELINES FOR POWER SYSTEMS ANALYSIS Organization: PIP
Date: 2016-07-01
Description: The following items are examples of additional studies which are beyond the scope of this Practice: a. Ground grid study b. High voltage substation design analysis c.
NG TGN(E) 285 - TECHNICAL GUIDANCE NOTE - LASER SCAN TO REVIT MODELLING STANDARDS - EXISTING CONDITIONS FOR ELECTRICITY TRANSMISSION SITES - ISSUE 1 Organization: NG
Date: 2016-05-01
Description: PURPOSE AND SCOPE The purpose of this document is to provide guidance for 3D modelling of existing National Grid infrastructure and assets (above ground) from supplied 3D Point Cloud Data.
IEEE 837 - QUALIFYING PERMANENT CONNECTIONS USED IN SUBSTATION GROUNDING Organization: IEEE
Date: 2014-08-21
Description: It particularly addresses the connection used within the grid system, the connection used to join ground leads to the grid system, and the connection used to join the ground leads to equipment and structures.
NG UKBP/TP 197 - UK BUSINESS PROCEDURE/TRANSMISSION PROCEDURES - EARTHING SYSTEM DESIGN PROCEDURAL REQUIREMENTS DOCUMENTATION - ISSUE 5 Organization: NG
Date: 2013-07-01
Description: PURPOSE AND SCOPE Earthing systems are installed to protect life and assets from the potentially damaging effects of 50Hz faults (short circuits) or transient phenomena such as lightning and switching operations. Such systems typically comprise a below ground grid of bare copper conductors laid horizontally at a shallow depth – sometimes supplemented via connections to vertical earthing rods driven to greater depth – plus a series of above ground conductors that facilitate the connection of specific equipment to the below ground system.
DS/CLC/TR 50609 - TECHNICAL GUIDELINES FOR RADIAL HVDC NETWORKS Organization: DS
Date: 2014-03-17
Description: Secondary effects associated with changing the AC systems, e.g. the replacement of rotating machines by power electronic devices, are not within the scope of the present report.The report summarises applications and concepts of HVDC Grid Systems with the purpose of preparing the ground for standardization of such systems.The interface requirements and functional specifications given in this document are intended to support the specification and purchase of multi vendor multiterminal HVDC Grid Systems.
NG TS 3.04.37 - TECHNICAL SPECIFICATIONS - CONDUCTORS AND CONDUCTOR SYSTEMS FOR OVERHEAD LINES - ISSUE 1 Organization: NG
Date: 2016-01-01
Description: The Specification defines characteristics and performance requirements for all round and trapezoidal wire concentric lay ACSR, ACAR, AAAC, ACC (See Note 1), AACSR and for Gap-type GZTACSR overhead line conductors, including their lubrication, procured for and use on overhead lines owned by or directly connected to the National Grid transmission system operating at 132kV, 275kV & 400kV.
IEEE 81.2 - GUIDE FOR MEASUREMENT OF IMPEDANCE AND SAFETY CHARACTERISTICS OF LARGE, EXTENDED OR INTERCONNECTED GROUNDING SYSTEMS Organization: IEEE
Date: 1991-01-01
Description: ScopeTest methods and instrumentation techniques used to measure the ac characteristics of large grounding systems include the following topics: 1) Measurement safety 2) Earth-return mutual errors 3) Low-current measurements 4) Power-system staged faults 5) Communication and control cable transfer impedance 6) Current distribution (current splits) in the grounding system 7) Step, touch, mesh, and profile measurements 8) The foot-equivalent electrode earth resistance 9) Instrumentation characteristics and limitations Grounding electrodes consisting of a single ground rod, arrays of ground rods, tower footings, and many grids (if no external grounding is connected) can be measured, interference voltages permitting, with methods outlined in IEEE Std 81-1983 [2] 1 .
ESD SP5.2.1 - ELECTROSTATIC DISCHARGE SENSITIVITY TESTING - MACHINE MODEL (MM) ALTERNATIVE TEST METHOD: SUPPLY PIN GANGING COMPONENT LEVEL Organization: ESD
Date: 2012-01-01
Description: ., ball grid array) that interconnect different power leads through common, low-resistance power and ground planes in the package, the number of power and ground leads can be reduced by ganging or grouping supply pins together on a custom test fixture board.
IEC 62548 - PHOTOVOLTAIC (PV) ARRAYS – DESIGN REQUIREMENTS - EDITION 1.0 Organization: IEC
Date: 2016-09-01
Description: Direct current systems, and PV arrays in particular, pose some hazards in addition to those derived from conventional AC power systems, including the ability to produce and sustain electrical arcs with currents that are not greater than normal operating currents.  In grid connected systems, the safety requirements of this document are however critically dependent on the inverters associated with PV arrays complying with the requirements of IEC 62109-1 and IEC 62109-2.
DS/EN 14679 - EXECUTION OF SPECIAL GEOTECHNICAL WORKS - DEEP MIXING Organization: DS
Date: 2005-11-30
Description: Deep mixing considered in this document is limited to methods, which involve:a) mixing by rotating mechanical mixing tools (see Annex A, Figure A.1) where the lateral support provided to the surrounding soil is not removed;b) treatment of the soil to a minimum depth of 3 m;c) different shapes and configurations, consisting of either single columns, panels, grids, blocks, walls or any combination of more than one single column, overlapping or not (see Annex A, Figures A.8 to A.12);d) treatment of natural soil, fill, waste deposits and slurries, etc.

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