Transformer core grounding

Transformer core grounding, Total:188 items.

The international standard classification for "Transformer core grounding" includes: Magnetic components , General standards related to shipbuilding and marine structures .

The Chinese standard classification for "Transformer core grounding" includes: Technical management , Transformer , Vessel technology .

Professional Standard - Electricity

DL/T 1433-2015 General Technical Specifications for Transformer Core Earth Current Measuring Device
DL/T 1432.5-2019 Testing specification for on-line monitoring device of transformation equipment一Part S:On-line monitoring device of transformer core earthing current
DL/T 1498.5-2019 Technical specification for on-line monitoring device of transformation equipment. Part5:On-line monitoring device of transformer core earthing current
DL/T 1176-2012 Regulation of Operation and Preventive Maintenance for AC 1000kV Oil-immersed Transformer and Shunt Reactor
DL/T 1389-2014 The Guide for Choice Neutral-earthing Reactor of 500kV Transformer

Professional Standard - Electron

SJ 1760-1981 BOD-type C-cores for single-phase transformers
SJ 2488-1984 Measuring methods for acoustic noise of transformers, chokes and cores for use in electronic equipment
SJ 1263-1977 XED/XCD-type C-cores for single-phase transformers
SJ/Z 2556-1984 Typical calculations for 50Hz single-phase power transformers using GE/GEB cores
SJ/Z 2603-1985 Drawings of associated parts for XCD-type C-cores for single-phase transformers and chokes
SJ/T 11244-2001 R-cores single-phase transformers
SJ/Z 2165-1982 Typical calculations for single-phase power transformers and filter chokes using C-cores
SJ 1761-1981 BCD-type C-cores for single-phase transformers
SJ/Z 1762-1981 Typical calculations for 50Hz single-phase power tranformers and filter choke using C-cores
SJ/T 9072.3-1997 Ferrite materials - Guide on the format of data appearing in manufacturers catalogues of transformer and inductor cores

Professional Standard-Ships

CB/Z 212.1-1986 Typical Process of Low-frequency Ring Transformer and Choking Coil Iron Core Manufacturing

国家铁路局

TB/T 3159-2021 Traction transformer for electrified railways
TB/T 2887-2022 Transformers used in electrified railway substations
TB/T 1869.7-2016 Transformers for railway signaling. Part 7: BE series impedance transformers
TB/T 1896.2-2013 Transformers for railway signaling Part 2: Signaling transformers
TB/T 3572-2022 Railway power transformer
TB/T 1869.6-2018 Transformers for railway signaling - Part 6: Transformers for switch indication

工业和信息化部

JB/T 10544-2018 Undergound-type transformers

Professional Standard - Machinery

JB/T 10544-2006 Underground-type transformers
JB/T 2931-1999 Traction silicon-rectifier transformer

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

GB/T 9626-1988 Inductor and transformer cores for telecommunications--Part 3:Sectional specification: Magnetic oxide cores for broad-band transformers

Group Standards of the People's Republic of China

T/CEC 342-2020 Technical specification for transformer neutral point grounding control device
T/GEIA 13-2020 Dry-type scott transformers for electric railway
T/ZZB 1415-2019 Ferrite transformer for photovoltaic micro inverter

Professional Standard - Railway

TB/T 1869.3-2013 Transformers for railway signaling. Part 3: 50Hz series track transformers
TB/T 1869.4-2013 Transformers for railway signaling-Part 4:25 Hz series track transformers
TB/T 2888-2010 Auto-transformer for AC electrified raiways
TB/T 1869.7-2023 Railway signaling transformers Part 7: BE series choke transformers
TB/T 1869.5-2013 Transformers for railway signaling. Part 5:BZ series track relay transformers
TB/T 1869.2-2013 Transformers for railway signaling. Part 2: Signal transformers

未注明发布机构

DIN EN 62317-5 E:2013-06 Ferrite cores - Dimensions - Part 5: EP-cores and associated parts for use in inductors and transformers

Taiwan Provincial Standard of the People's Republic of China

CNS 6134-1980 Cut Cores for Electronic Equipment

Japanese Industrial Standards Committee (JISC)

JIS C 2517:1963 Dimensions for u cores made of ferromagnetic oxides
JIS C 2562:1981 Measuring methods for ferrite cores for inductors and transformers

British Standards Institution (BSI)

BS 5336:1976 Specification - Cores made of ferromagnetic oxides for use in high flux density transformers
BS EN 62317-5:2015 Ferrite cores. Dimensions. EP-cores and associated parts for use in inductors and transformers
BS 5347:1976 Specification for silicon-iron strip-wound cores for use in transformers and inductors for telecommunications and electronic equipment
BS EN IEC 60076-25:2023 Power transformers - Neutral grounding resistors
BS EN 61021-2:1997 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Electrical characteristics for cores using YEE 2 laminations
BS EN 125200:1978 Harmonized system of quality assessment for electronic components: sectional specification: magnetic oxide cores for linear transformers
BS EN IEC 63093-5:2018 Ferrite cores. Guidelines on dimensions and the limits of surface irregularities - EP-cores and associated parts for use in inductors and transformers
BS 6436:1984 Specification for ground mounted distribution transformers for cable box or unit substation connection
BS ISO 22829:2007 Resistance welding - Transformer-rectifier for welding guns with integrated transformers - Transformer-rectifier units operating at 1000 Hz frequency
BS PD IEC/TR 61869-102:2014 Instrument transformers. Ferroresonance oscillations in substations with inductive voltage transformers
BS 5938-1:1984 Cores for inductors and transformers for telecommunications. Methods of measurement

German Institute for Standardization

DIN EN 125200:1993 Sectional specification: magnetic oxide cores for linear transformers; german version EN 125200:1991
DIN 41307-3:1981 Accessory parts for small transformers and chokes; attachment straps for cores typ E , U and 3 U
DIN 4000-70:1992 Tabular layouts of article characteristics for core laminations, cores and coil formers for small transformers and chokes
DIN 41307-4:1981 Accessory parts for small transformers and chockes; fixing brackets for cores type UI and 3UI
DIN EN 125400:1993 Sectional specification: adjusters used with magnetic oxide cores for use in inductors and tuned transformers; german version EN 125400:1991
DIN IEC 60740-2:1995 Laminations for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Specification for the minimum permeabilities of laminations made of soft magnetic metallic materials (IEC 60740-2:1993)
DIN IEC 60852-5:1995 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores (IEC 60852-2:1994)
DIN EN 125401:1993 Blank detail specification: adjusters used with magnetic oxide (ferrite) cores for use in inductors and tuned transformers; german version EN 125401:1991
DIN EN 125200:1993-02 Sectional specification: magnetic oxide cores for linear transformers; german version EN 125200:1991
DIN EN 61021-2:1997-10 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE 2 laminations (IEC 61021-2:1995); German version EN 61021-2:1997
DIN IEC 60852-5:1995-08 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores (IEC 60852-2:1994)
DIN EN 61021-2:1997 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE 2 laminations (IEC 61021-2:1995); German version EN 61021-2:1997

TR-TSE

TS 3407-1979 MEASURING METHODS OF COKES FOR INDUCTORS AND TRANSFORMERS FOR TELECOMMUNICATIONS

IN-BIS

IS 3151-1982 Grounding Transformer Specifications
IS 13674 Pt.3-1993 Dimensions of ferrite components for CTV. Part 3: Cores for smps transformer
IS 13901 Pt.2-1993 Dimensions of ferrite components for CTV. Part 2: Cores for line output transformers
IS 9654-1993 Information on ferrited materials to be supplied by manufacturers of transformers and inductor cores (First Revision)
IS 7416 Pt.12-1984 Dimensions of television ferrite components Part 12 U-shaped cores for line drive transformers
IS 7687-1980 Methods of measurement for inductor and transformer cores used in telecommunications

Korean Agency for Technology and Standards (KATS)

KS C 6317-1972(2011) Dimensions for U cores made of ferromagnetic oxides
KS C 2120-2002 MEASURING METHODS FOR FERRITE CORES FOR INDUCTORS AND TRANSFORMERS
KS C 2120-1982 MEASURING METHODS FOR FERRITE CORES FOR INDUCTORS AND TRANSFORMERS
KS C IEC 62317-5:2019 Ferrite cores — Dimensions — Part 5: EP-cores and associated parts for use in inductors and transformers
KS C 4314-1998(2018) Flame-resistant single-grounded pole transformer (22.9KV)
KS C ISO 22829:2007 Resistance welding-Transformer-rectifier for welding guns with integrated transformers-Transformer-rectifier units operating at 1 000 Hz frequency
KS B ISO 10656:2021 Resistance welding equipment — Transformers — Integrated transformers for welding guns

YU-JUS

JUS N.R8.153-1982 Cores for inductors and transformers for telecommunications. ethods of expressing temperature dependence
JUS N.H1.043-1989 Patter transfarmers. Eartbiug connection
JUS N.R8.150-1982 Cores for inductors and transformers for telecomunications. Measuring methods. General
JUS N.R8.151-1982 Cores for inductors and transformers for telecommunications. Apparartus for magnetic conditioning
JUS N.R8.160-1982 Cores for inductors and transformers for telecommunications. Common measuring methods. Disac- ommodation
JUS N.R8.172-1982 Cores for inductors and transformers for telecommunications. Specialized measuring methods. ontribution of the adjusting device to the ?ore instability
JUS N.R8.161-1982 Cores for inductors and transformers for telecommunications. Common measuring methods. Variation f permeabi!ity with temperature
JUS N.R8.170-1982 Cores for inductors and transformers for telecommunications. Specialized measuring methods. Third armonic distortion
JUS N.R8.171-1982 Cores for inductors and transformers for telecommunications. Specialized measuring methods. Magnetic shock sensitivity
JUS N.R8.162-1982 Cores for inductors and transformers for telecommunications. Common measuring methods. Range of nduc tance adjustment
JUS N.R8.163-1982 Cores for inductors and transformers for telecommunications. Common measuring methods. Losses at ow flux density
JUS N.R8.154-1982 Cores for inductors and transformers for telecommunications. ethods for loss measurement calibration

US-FCR

FCR FED H-08-4 VOL 4-E-T-2-1988 TRANSFORMER AND PANEL GROUNDING
FCR FED H-08-4 VOL 4-E-SS-12-1988 PADMOUNT TRANSFORMER IN SEISMIC SHOCK AREA

(U.S.) Ford Automotive Standards

FORD WTX-1994 GROUNDING WELDING TRANSFORMERS - REACTIR METHOD

CN-QIYE

Q/GDW 1894-2013 Technical specifications for transformer core ground current on-line monitoring device
Q/GDW 1540.4-2013 Inspection specification for on-line monitoring device for substation equipment part 4: On-line monitoring device for transformer core ground current

ECIA - Electronic Components Industry Association

393-1971 Core Laminations@ Vertical and Horizontal Channel Frames for Transformers for Radio and TV Receivers

SCC

AS 1028:1970 Power reactors and earthing transformers
DANSK DS/EN 62317-5:2016 Ferrite cores – Dimensions – Part 5: EP-cores and associated parts for use in inductors and transformers
CEI EN 62317-5:2016 Ferrite cores - Dimensions Part 5: EP-cores and associated parts for use in inductors and transformers
DANSK DS/EN 61021-1:1997 Laminated core packages for transformers and inductors used in telecommunication and electronic equipment - Part 1: Dimensions
13/30280403 DC BS EN 62317-5. Ferrite cores. Dimensions. Part 5. EP-cores and associated parts for use in inductors and transformers
BS 9632:1974 Rules for the preparation of detail specifications for ferrite cores of assessed quality for use in transformers
CEI EN 61021-2:1998 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment Part 2: Electrical characteristics for cores using YEE 2 laminations
IEC 60401:1972 Information of ferrite materials appearing in manufacturers' catalogues of transformer and inductor cores
DANSK DS/EN IEC 60076-25:2023 Power transformers – Part 25: Neutral grounding resistors
CEI EN IEC 60076-25:2023 Power transformers Part 25: Neutral grounding resistors
IEC 60218:1966 Guide for the drafting of performance specifications for cores of tuned transformers and inductors of ferromagnetic oxides for telecommunication
DANSK DS/EN 125200:2016 Sectional Specification: Magnetic oxide cores for linear transformers
CEI EN 61021-1:1998 Laminated core packages for transformers and inductors used in telecommunication and electronic equipment Part 1: Dimensions
DIN EN 62317-5 E:2013 Draft Document - Ferrite cores - Dimensions - Part 5: EP-cores and associated parts for use in inductors and transformers (IEC 51/1021/CD:2013)
BS 5938-1:1980 Cores for inductors and transformers for telecommunicationsMethods of measurement
AS 2558:1982 Transformers for use on single wire earth return distribution systems

Association Francaise de Normalisation

NF C93-323:1982 COMPONENTS FOR ELECTRONIC EQUIPMENT. MAGNETIC CORES AND ACCESSORIES. POTS CORES MADE OF FERRO-MAGNETIC OXIDES FOR TRANSFORMERS. GENERAL REQUIREMENTS.
NF C93-357-5:2016 Ferrite cores - Dimensions - Part 5 : EP-cores and associated parts for use in inductors and transformers
NF C93-304-1*NF EN 60740-1:2006 Laminations for transformers and inductors - Part 1 : mechanical and electrical characteristics.
NF EN 61021-2:1998 Cores made from cut sheets for transformers and inductors intended for electronic and telecommunications equipment - Part 2: electrical characteristics for cores using YEE 2 sheets
NF EN IEC 60076-25:2023 Power transformers - Part 25: neutral earthing resistors
NF C83-310:1982 ELECTRONIC COMPONENTS. HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS. INDUCTOR AND TRANSFORMER CORES FOR TELECOMMUNICATIONS. GENERIC SPECIFICATION. (SPECIFICATION CECC 25 000).
NF C52-320*NF EN 125200:1991 Sectional Specification : magnetic oxide cores for linear transformers
NF EN 61021-1:1998 Cut sheet metal cores for transformers and inductors intended for electronic and telecommunications equipment - Part 1: dimensions
UTE C93-323U*UTE C93-323:1974 Components for electronic equipment. Magnetic cores and accessories. Pots cores made of ferromagnetic oxides for transformers. Particular requirements. Relevant article sheets.
NF C83-312:1982 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS. SECTIONAL SPECIFICATION. MAGNETIC OXIDE CORES FOR LINEAR TRANSFORMERS. (SPECIFICATION CECC 25 200).

IECQ - IEC: Quality Assessment System for Electronic Components

QC 250301/ IN 0006-1993 Inductor and Transformers Cores for Telecommunication; Magnetic Oxide Cores for Transformers. Type: UU 3569
QC 250301/ IN 0002-1990 Inductor and Transformers Cores for Telecommunication; Magnetic Oxide Cores for Flyback Transformers Type: UU 5756
QC 250301/ IN 0001-1990 Inductor and Transformers Cores for Telecommunication; Magnetic Oxide Cores for Flyback Transformers. Type: UU 5255
QC 250301/ IN 0009-1993 Inductor and Transformers Cores for Telecommunication; Magnetic Oxide Cores for Transformers for Power Applications. Type: EI 4012
QC 250301/ IN 0004-1993 Inductor and Transformers Cores for Telecommunication; Magnetic Oxide Cores for Transformers for Power Applications. Type: EE 3007
QC 250301/ IN 0003-1990 Inductor and Transformers Cores for Telecommunication; Magnetic Oxide Cores for Transformers for Power Applications Type: EE 4215
QC 250301/ IN 0005-1993 Inductor and Transformers Cores for Telecommunication; Magnetic Oxide Cores for Transformers for Power Applications. Type: EE 3213
QC 250200-1985 Inductor and Transformer Cores for Telecommunications Part 3: Sectional Specification: Magnetic Oxide Cores for Broad-Band Transformers (IEC 723-3 ED 1)
QC 250201/ QC 250202-1985 Inductor and Transformer Cores for Telecommunications Part 3: Blank Detail Specification: Magnetic Oxide Cores for Broad-Band Transformers; Assessment Levels A and B

Electronic Components, Assemblies and Materials Association

ECA 393-1971 Core Laminations, Vertical and Horizontal Channel Frames for Transformers for Radio and TV Receivers

Standard Association of Australia （SAA）

AS 1028:1992 Power reactors and earthing transformers

International Electrotechnical Commission (IEC)

IEC 60740/AMD1:1991 Laminations for transformers and inductors for use in telecommunication and electronic equipment; amendment 1
IEC 60740-1:2005 Laminations for transformers and inductors - Part 1: Mechanical and electrical characteristics
IEC 61021-2:1995 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE 2 laminations
IEC 62317-5:2015 Ferrite cores - Dimensions - Part 5: EP-cores and associated parts for use in inductors and transformers
IEC 60740-2:1993 Laminations for transformers and inductors for use in telecommunication and electronic equipment; part 2: specification for the minimum permeabilities of laminations made of soft magnetic metallic materials
IEC 60852-3:1992 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment; part 3: transformers and inductors using YUI-1 laminations
IEC 60852-1:1986 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment. Part 1 : Transformers and inductors using YEI-1 laminations
IEC 60852-5:1994 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores
IEC 60852-4:1996 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 4: Transformers and inductors using YUI-2 laminations
IEC 63093-5:2018 Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 5: EP-cores and associated parts for use in inductors and transformers
IEC 60076-25:2023 Power transformers - Part 25: Neutral grounding resistors
IEC 61021-1:1990 Laminated core packages for transformers and inductors used in telecommunication and electronic equipment; part 1: dimensions
IEC 60401-3:2015 Terms and nomenclature for cores made of magnetically soft ferrites - Part 3: Guidelines on the format of data appearing in manufacturers catalogues of transformer and inductor cores
IEC 60852-2:1992 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment; part 2: transformers and inductors using YEx-2 laminations for printed wiring board mounting
IEC 60723-5:1993 Inductor and transformer cores for telecommunications; part 5: sectional specification: adjusters used with magnetic oxide cores for use in adjustable inductors and transformers

European Committee for Electrotechnical Standardization（CENELEC）

EN 62317-5:2015 Ferrite cores - Dimensions - Part 5: EP-cores and associated parts for use in inductors and transformers
EN 61021-2:1997 Laminated Core Packages for Transformers and Inductors for Use in Telecommunication and Electronic Equipment Part 2: Electrical Characteristics for Cores Using YEE 2 Laminations
EN IEC 60076-25:2023 Power transformers - Part 25: Neutral grounding resistors
EN 60740-1:2005 Laminations for transformers and inductors Part 1: Mechanical and electrical characteristics
EN 61021-1:1997 Laminated Core Packages for Transformers and Inductors Used in Telecommunication and Electronic Equipment Part 1: Dimensions

Institute of Electrical and Electronics Engineers (IEEE)

IEEE Std C57.12.40-2006 Secondary network transformers, subway and vault types (Liquid immersed)

KR-KS

KS C 4314-1998(2023) Salt-resistant single-ended grounded main transformer (22.9KV)
KS C IEC 62317-5-2019 Ferrite cores — Dimensions — Part 5: EP-cores and associated parts for use in inductors and transformers

BR-ABNT

ABNT PB-243-1979 underground transformer

American Society for Testing and Materials (ASTM)

ASTM A1009-18 Standard Specification for Soft Magnetic MnZn Ferrite Core Materials for Transformer and Inductor Applications
ASTM A100-93(2000) Standard Specification for Ferrosilicon

RU-GOST R

GOST 29000-1991 Inductor and transformer cores for telecommunication. Part 3. Sectional specification magnetic oxide cores for broad-band transformers

TH-TISI

TIS 1717-1998 Inductor and transformer cores for telecommunications.part 3: sectional specification: magnetic oxide cores for broad.band transformers
TIS 1719-1998 Inductor and transformer cores for telecommunications.part 4: sectional.Specification: magnetic oxide cores for transformers and chokes for power applications
TIS 1721-1998 Inductor and transformer cores for telecommunications.part 5: sectional specification: adjusters used with magnetic oxide cores for use in adjustable inductors and transformers

GSO

GSO IEC 61021-2:2015 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE2 laminations
BH GSO IEC 61021-2:2016 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE2 laminations
OS GSO IEC 61021-2:2015 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE2 laminations
GSO IEC 60852-5:2014 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores
GSO IEC 61797-1:2014 Transformers and inductors for use in telecommunication and electronic equipment - Main dimensions of coil formers - Part 1: Coil formers for laminated cores
BH GSO IEC 60852-5:2016 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores
OS GSO IEC 60852-5:2014 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores
BH GSO IEC 61021-1:2016 Laminated core packages for transformers and inductors used in telecommunication and electronic equipment - Part 1: Dimensions
GSO IEC 61021-1:2015 Laminated core packages for transformers and inductors used in telecommunication and electronic equipment - Part 1: Dimensions
OS GSO IEC 61021-1:2015 Laminated core packages for transformers and inductors used in telecommunication and electronic equipment - Part 1: Dimensions

Danish Standards Foundation

DS/IEC 723-3:1987 Inductor and transformer cores for telecommunications - Part 3: Sectional specification: Magnetic oxide cores for broad-band transformers
DS/IEC 723-3-1:1987 Inductor and transformer cores for telecommunications. Part 3: Blank detail specification: Magnetic oxide cores for broad-band transformers. Assessment levele A and B
DS/EN 61021-2:1998 Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE 2 laminations

American National Standards Institute （ANSI)

ANSI/ASTM A1009:2000 Specification for Soft Magnetic MnZn Ferrite Core Materials for High Frequency (10KHz to 1MHz) Power Transformer and Filter Inductor Applications
ANSI C57.12.24-2000 Transformers - Underground-Type Three-Phase Distribution Transformers, 2500 kVA and Smaller: High Voltage 34 500 Grd Y/19 920 Volts and Below; Low Voltage, 480 Volts and Below - Requirements

ES-UNE

UNE-EN 125200:1991 SS: MAGNETIC OXIDE CORES FOR LINEAR TRANSFORMERS. (Endorsed by AENOR in November of 1996.)
UNE-EN 125401:1991 BDS: ADJUSTERS USED WITH MAGNETIC OXIDE (FERRITE) CORES FOR USE IN INDUCTORS AND TUNED TRANSFORMERS. (Endorsed by AENOR in November of 1996.)
UNE-EN IEC 60076-25:2023 Power transformers - Part 25: Neutral grounding resistors

IEC - International Electrotechnical Commission

IEC 60723-3:1985 Inductor and Transformer Cores for Telecommunications Part 3: Sectional Specification: Magnetic Oxide Cores for Broad-Band Transformers (Edition 1.0; IECQ QC 250200)
IEC 60723-4:1987 Inductor and Transformer Cores for Telecommunications Part 4: Sectional Specification: Magnetic Oxide Cores for Transformers and Chokes for Power Applications (IECQ QC 250300) (Edition 1.0)

IEEE - The Institute of Electrical and Electronics Engineers@ Inc.

IEEE C57.12.40-1982 REQUIREMENTS FOR SECONDARY NETWORK TRANSFORMERS@ SUBWAY AND VAULT TYPES (LIQUID IMMERSED)

Lithuanian Standards Office

LST EN 125200-2001 Sectional specification. Magnetic oxide cores for linear transformers

International Organization for Standardization (ISO)

ISO 22829:2007 Resistance welding - Transformer-rectifier for welding guns with integrated transformers - Transformer-rectifier units operating at 1000 Hz frequency

United States Navy

NAVY MIL-DTL-24231/2 E-2013 CONNECTOR, PLUG, TYPE I, 90-DEGREE, MOLDED, THREE-, FOUR-, AND FIVE-CONDUCTOR

AENOR

UNE 20580-1/1C:1986 CORES FOR INDUCTORS AND TRANSFORMERS FOR TELECOMUNICATIONS. MEASURING METHODS
UNE 20580-1:1985 CORES FOR INDUCTORS AND TRANSFORMERS FOR TELECOMMUNICATIONS. MEASURING METHODS

Defense Logistics Agency

DLA A-A-55562 A VALID NOTICE 2-2011 Resistor, Voltage Sensitive (Varistor, Metal Oxide), Chip

Others: Transformer and Choke Small Cores,Transformer core