{"id":398977,"date":"2024-10-20T04:39:55","date_gmt":"2024-10-20T04:39:55","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-644-1987-2\/"},"modified":"2024-10-26T08:27:32","modified_gmt":"2024-10-26T08:27:32","slug":"ieee-644-1987-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-644-1987-2\/","title":{"rendered":"IEEE 644-1987"},"content":{"rendered":"

Revision Standard – Inactive-Withdrawn. Uniform procedures for the measurement of power frequency electric and magnetic fields from alternating current (AC) overhead power lines and for the calibration of the meters used in these measurements are established. The procedures apply to the measurement of electric and magnetic fields close to ground level. The procedures can also be tentatively applied (with limitations, as specified in the standard) to electric fields near an energized conductor or structure.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
9<\/td>\nPurpose
Definitions <\/td>\n<\/tr>\n
10<\/td>\nReferences
Electric Field Strength Meters
General Characteristics of Electric Field Strength Meters <\/td>\n<\/tr>\n
11<\/td>\nTable 1 Typical Background Data Sheet <\/td>\n<\/tr>\n
12<\/td>\nTheory and Operational Characteristics
Calibration of Electric Field Strength Meters
(a) Spherical E-Field Probe; (b) Geometries of Commercial US E-Field Meters <\/td>\n<\/tr>\n
13<\/td>\nNormalized E-Field at Plate Surface and Midway Between Plates
Normalized E-Field Values Midway Between Plates and at Plate Surfaces <\/td>\n<\/tr>\n
14<\/td>\nLarge Parallel Plates Used for Calibration of E-Field Meter
Current Injection Calibration Check <\/td>\n<\/tr>\n
15<\/td>\nKnown E-Field for Large Parallel Plates and Tolerance Levels <\/td>\n<\/tr>\n
16<\/td>\n4.4 Immunity from Interference
Parameters Affecting Accuracy of Electric Field Strength Measurements <\/td>\n<\/tr>\n
17<\/td>\nElectric Field Strength Measurement Procedures
Procedure for Measuring Electric Field Strength Near Power Lines
Lateral Profile (Figs 6 and
5.3 Longitudinal Profile (Fig <\/td>\n<\/tr>\n
18<\/td>\nPrecautions and Checks During E-Field Measurements
Example of Lateral Profile of Vertical E-Field Strength at Midspan
Typical Plan View with Heights of Permanent Nearby Objects <\/td>\n<\/tr>\n
19<\/td>\n5.5 Measurement Uncertainty
Magnetic Field Meters
General Characteristics of Magnetic Field Meters
Theory and Operational Characteristics <\/td>\n<\/tr>\n
20<\/td>\nCalibration of Magnetic Field Meters
Conducting Loop in Quasistatic Uniform B-Field
Coordinate System for Current Loop Generating Magnetic Field B <\/td>\n<\/tr>\n
21<\/td>\nCurrent Loop 1 x 1 m and 3 cm Above and Below the Plane (Parenthesis) <\/td>\n<\/tr>\n
22<\/td>\n6.4 Immunity from Interference
Parameters Affecting Accuracy of Magnetic Field Measurements
Magnetic Field Measurement Procedures
Procedure for Measuring Magnetic Field Near Power Lines
7.2 Lateral Profile
7.3 Longitudinal Profile
Precautions and Checks During B-Field Measurements
Fig 11 Schematic of Circuit for Calibration of Magnetic Field Meter <\/td>\n<\/tr>\n
23<\/td>\n7.5 Measurement Uncertainty
Reporting Field Measurements
Bibliography <\/td>\n<\/tr>\n
25<\/td>\nUnits and Conversion Factors
A1 Units and Conversion Factors
A2 SI Units
A3 Useful Physical Constants
A4 References
Table A1 Conversion from Customary to SI Units <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard Procedures for Measurement of Power Frequency Electric and Magnetic Fields from AC Power Lines<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1987<\/td>\n26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":398982,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-398977","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/398977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/398982"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=398977"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=398977"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=398977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}