ANSI – PDF Standards Store ?u= Wed, 27 Nov 2024 11:33:58 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 ?u=/wp-content/uploads/2024/11/cropped-icon-150x150.png ANSI – PDF Standards Store ?u= 32 32 ANSI/ISA-18.2-2016 ?u=/product/publishers/ansi/ansi-isa-18-2-2016/ Wed, 27 Nov 2024 11:33:54 +0000 This standard specifies general principles and processes for the lifecycle management of alarm systems based on programmable electronic controller and computer-based human-machine interface (HMI) technology for facilities in the process industries. It covers all alarms presented to the operator through the control system, which includes alarms from basic process control systems, annunciator panels, packaged systems (e.g., fire and gas systems, and emergency response systems), and safety instrumented systems.

]]> ANSI C37.0781 1972 ?u=/product/publishers/ansi/ansi-c37-0781-1972/ Sat, 19 Oct 2024 09:13:50 +0000 ANSI American National Standard Schedule of Dielectric Test Values for Outdoor AC High-Voltage Circuit Breaker External Insulation Rated on a Symmetrical Current Basis
Published By Publication Date Number of Pages
ANSI 1972 6
]]> – Inactive – Withdrawn.

]]> IEEE C63.4 2009 ?u=/product/publishers/ansi/ieee-c63-4-2009-3/ Sat, 19 Oct 2024 07:52:30 +0000 American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz
Published By Publication Date Number of Pages
ANSI 2009 147
]]> Revision Standard – Inactive – Superseded. U.S. consensus standard methods, instrumentation, and facilities for measurement of radio-frequency (RF) signals and noise emitted from electrical and electronic devices in the frequency range 9 kHz to 40 GHz are specified. This standard does not include generic nor product-specific emission limits. Where possible, the specifications herein are harmonized with other national and international standards used for similar purposes.

]]> IEEE C63.4 2009 ?u=/product/publishers/ansi/ieee-c63-4-2009-2/ Sat, 19 Oct 2024 06:33:08 +0000 American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz
Published By Publication Date Number of Pages
ANSI 2009 147
]]> Revision Standard – Inactive – Superseded. U.S. consensus standard methods, instrumentation, and facilities for measurement of radio-frequency (RF) signals and noise emitted from electrical and electronic devices in the frequency range 9 kHz to 40 GHz are specified. This standard does not include generic nor product-specific emission limits. Where possible, the specifications herein are harmonized with other national and international standards used for similar purposes.

PDF Catalog

PDF Pages PDF Title
1 ANSI C63.4-2009 Front Cover
3 Title Page
4 Abstract/Keywords
6 Introduction
8 Notice to users
Laws and regulations
Copyrights
9 Updating of IEEE documents
Errata
Interpretations
Patents
10 Participants
12 Contents
15 Important Notice

1. Overview
1.1 Scope
16 1.2 Purpose and applications
17 2. Normative references
18 3. Definitions, acronyms, and abbreviations
19 3.1 Definitions
21 3.2 Acronyms
22 4. Measurement instrumentation
4.1 General
4.2 Emission measuring instruments
25 4.3 LISN
4.4 Voltage probe
4.5 Antennas
27 4.6 Absorbing clamp
4.7 Calibration of measuring equipment
29 4.8 Figures for Clause 4
31 5. Test facilities
5.1 General requirements
32 5.2 AC power-line conducted emission test requirements
34 5.3 Radiated emission test facilities (9 kHz to 30 MHz)
5.4 Radiated emission test facilities (30 MHz to 1 GHz)
35 5.5 Radiated emission test facilities for frequencies above 1 GHz (1 GHz to 40 GHz)
36 5.6 Testing at manufacturer’s location or user’s installation (on-site/in situ testing)
37 5.7 Figure for Clause 5
38 6. General requirements for EUT arrangements, configuration, and operation
6.1 General
6.2 Operating conditions
41 6.3 Arrangement of EUT
46 6.4 Figures for Clause 6
54 7. AC power-line conducted emission measurements
7.1 General
7.2 Measurement requirements
7.3 Measurement procedures
56 8. Radiated emission measurements
8.1 General measurement and test facilities requirements
57 8.2 Antenna selection, placement, and measuring distance
59 8.3 Radiated emission measurement procedures
61 9. Radio-noise power
9.1 General
9.2 Absorbing clamp calibration
9.3 Absorbing clamp measurement procedures
62 10. Test reports
10.1 General
10.2 Test report content
67 10.3 Test report disposition
11. Measurement of ITE
11.1 General
11.2 Operating conditions
68 11.3 Peripherals/accessories
11.4 Visual display units
69 11.5 Tabletop equipment arrangement
70 11.6 Floor-standing equipment arrangement
11.7 Combination tabletop and floor-standing equipment arrangement
11.8 AC power-line conducted emission measurements
71 11.9 Radiated emission measurements
72 11.10 Figure for Clause 11
73 12. Measurement of unintentional radiators other than ITE
12.1 General
12.2 Measurement of receivers
76 12.3 Measurement of TV interface devices
79 12.4 Antenna transfer switch measurements for unintentional radiators
82 12.5 Figure for Clause 12
13. Measurement of intentional radiators
13.1 General
83 13.2 Requirements of intentional radiators
84 13.3 AC power-line conducted emission measurements
13.4 Radiated emission measurements
85 13.5 Operating frequency measurements
86 13.6 Frequency stability measurements
87 13.7 Occupied bandwidth measurements
88 13.8 Input power measurements
13.9 Requirements of field disturbance sensors (RF intrusion alarms)
14. Limit relaxation for transients
90 Annex A (informative) Applicable clauses and subclauses of ANSI C63.4 by equipment type
93 Annex B (normative) Specifications and verification of LISN characteristics
101 Annex C (normative) Absorbing clamp
102 Annex D (normative) Validation of radiated emissions standard test sites
117 Annex E (informative) Method of exploratory radiated emission maximization
118 Annex F (normative) Test procedure for emissions testing in TEM waveguides (30 MHz to 1 GHz)
128 Annex G (informative) Sample OATS to TEM waveguide validation spreadsheet
130 Annex H (informative) Precautions in using spectrum analyzers
139 Annex I (informative) Bibliography
143 Annex J (informative) Keyword index
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