AC impedance is no more than 0

AC impedance is no more than 0, Total:58 items.

The international standard classification for "AC impedance is no more than 0" includes: Rectifiers. Convertors. Stabilized power supply , Cabled distribution systems , Radiographic equipment .

The Chinese standard classification for "AC impedance is no more than 0" includes: Power semiconductor device and parts , Plug screws, pipe fittings , Carrier communication equipment , Medical electronic equipment .

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 43534-2023 Design and testing methods for AC side impedance of voltage source converter based high voltage direct current（VSC-HVDC） transmission
GB/T 7330-1998 Sheet metal formability and test methods
GB/T 7330-2008 Line traps for a.c. power systems

Professional Standard - Medicine

YY/T 1078-2008 Direct impedance blood flow recorder
YY/T 1143-2008 Bridge type impedance blood flow recorder
YY 91143-1999 Bridge type impedance blood flow recorder
YY 91078-1999 Direct impedance blood flow recorder

Professional Standard - Machinery

JB/T 10057-1999 Alternating current resistance box for measurement purpose

National Metrological Technical Specifications of the People's Republic of China

JJF 1636-2017 Calibration Specification for A. C. Resistance Boxes

Group Standards of the People's Republic of China

T/CSTM 00967-2024 Rare earth-based hydrogen storage alloy -Ac impedance and hydrogen diffusion coefficient test-Electrochemical method

SCC

AS 1029:1974 A.C. Contactors (up to and including 1000 volts a.c.)
MIL MIL-L-52366C-1984 LOAD BANK, AC, 0-33KW, RESISTIVE (SUPERSEDING MIL-L-52366B) (NO S/S DOCUMENT)
CEI 20-91:2010 Electric cables with halogen-free, flame-retardant elastomeric insulation and sheath with nominal voltage not exceeding 1000 V in alternating current and 1500 V in direct current for applications in photovoltaic systems
BS 126:1923 Flame proof air-break switches for voltages not exceeding 660 volts (for a.c. and d.c. voltages not exceeding 660 volts)
IEC 60066:1953 IEC specification for fuses for voltages not exceeding 1 000 V for a.c. and d.c.
CEI 64-8/6:2012 Electrical systems for users with a nominal voltage not exceeding 1 000 V in alternating current and 1 500 V in direct current Part 6: Verifications
BS 861-1:1955 Air-break switches and isolators. Switches and isolators for voltages not exceeding 660 volts and currents up to 200 amperes a.c
BS 861-2:1966 Air-break switches and isolators. Switches and isolators for voltages not exceeding 660 volts and currents up to 800 amperes a.c
CEI 64-8/3:2012 Electrical user systems with a nominal voltage not exceeding 1 000 V in alternating current and 1 500 V in direct current Part 3: General characteristics
CEI EN 50005:2011 Industrial equipment with a voltage not exceeding 1,000 V in alternating current and 1,200 V in direct current - Identification of the terminals and characteristic number - General rules
CEI EN 60909-0:2016 Short-circuit currents in three-phase ac systems - Part 0: Calculation of currents
12/30270636 DC BS EN 60909-0. Short-circuit currents in three.phase A.C. systems. Calculation of currents
DANSK DS/EN 60909-0:2016 Short-circuit currents in three-phase a.c. systems – Part 0: Calculation of currents
CEI 64-8/1:2012 Electrical systems for users with a nominal voltage not exceeding 1 000 V in alternating current and 1 500 V in direct current Part 1: Object, purpose and fundamental principles
CAN3-C235-1983(C2010) Recommended voltages for AC networks from 0 to 50,000 V

Association Francaise de Normalisation

NF C18-310:1985 Voltage detectors to be used for alternating voltages not exceeding 1 000 V.
NF EN 62453-303-2:2016 Short-circuit currents in three-phase alternating current networks - Part 0: calculation of currents
NF EN 60909-0:2016 Short-circuit currents in three-phase alternating current networks - Part 0: calculation of currents
NF C10-120*NF EN 60909-0:2016 Short-circuit currents in three-phase a.c.systems - Part 0 : calculation of currents
NF C10-120:2002 Short-circuit currents in three-phase a.c.systems - Part 0 : calculation of currents.

RU-GOST R

GOST R 54127-3-2011(2019) Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance
GOST R 54127-3-2011 Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance

International Telecommunication Union (ITU)

ITU-T K.21-2011 Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents Study Group 5

National Aeronautics and Space Administration (NASA)

NASA-TM-X-71903-1976 A theoretical study of the acoustic impedance of orifices in the presence of a steady grazing flow

United States Navy

NAVY MIL-V-6753 A-1956 VOLTMETERS, 0-150 VOLT, 330 TO 1200 CYCLE, ALTERNATING CURRENT
NAVY MIL-V-6753 A NOTICE 1-1996 VOLTMETERS, 0-150 VOLT, 330 TO 1200 CYCLE, ALTERNATING CURRENT
NAVY MIL-V-6753 A (2)-1958 VOLTMETERS, 0-150 VOLT, 330 TO 1200 CYCLE, ALTERNATING CURRENT

Lithuanian Standards Office

LST EN 60909-0-2002 Short-circuit currents in three-phase AC systems. Part 0: Calculation of currents (IEC 60909-0:2001)

German Institute for Standardization

DIN EN 60909-0:2002 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents (IEC 60909-0:2001); German version EN 60909-0:2001
DIN EN 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents (IEC 60909-0:2016); German version EN 60909-0:2016

Society of Automotive Engineers (SAE)

SAE AIR1404-2020 DC Resistivity vs RF Impedance of EMI Gaskets

SAE - SAE International

SAE AIR1404-1976 DC Resistivity VS RF Impedance of EMI Gaskets

PL-PKN

PN E06729-1990 Rotating electrical machines Measurement ot the winding resistancc ol an a.c. machine by superposition method

European Committee for Electrotechnical Standardization（CENELEC）

EN 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents

International Electrotechnical Commission (IEC)

IEC 60909-0:2001 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
IEC 60909-0:2001/COR1:2002 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
IEC 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents

Korean Agency for Technology and Standards (KATS)

KS C IEC 60909-0-2014(2019) Short-circuit currents in three-phase a.c. systems — Part 0: Calculation of currents
KS C IEC 60909-0-2019 Short-circuit currents in three-phase a.c. systems — Part 0: Calculation of currents

IN-BIS

IS 8544 Pt.3/Sec.2-1979 Specification for starters for motors with voltages not exceeding 1000 V Part III Rheostat starters Section 2: Additional requirements for AC rheostat controllers

Defense Logistics Agency

DLA MIL-T-28732 C VALID NOTICE 2-2011 Transformer, Impedance Matching, Balance to Unbalance (BALUN)

British Standards Institution (BSI)

BS EN IEC 60477-2:2022 Laboratory resistors. Laboratory AC resistors
BS EN 60477-2:1980 Laboratory resistors. Laboratory a.c. resistors
BS EN 60477-2:1999 Laboratory resistors - Laboratory a.c. resistors

Danish Standards Foundation

DS/EN 60909-0:2003 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents

ES-UNE

UNE-EN 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents (Endorsed by AENOR in August of 2016.)

GSO

GSO IEC 60909-0:2024 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents

AENOR

UNE-EN 60909-0:2002 Short-circuit currents in three-phase a.c. systems -- Part 0: Calculation of currents.

Others: AC impedance is no more than 0