17.220.01 – Electricity. Magnetism. General aspects – PDF Standards Store ?u= Wed, 06 Nov 2024 01:59:17 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 ?u=/wp-content/uploads/2024/11/cropped-icon-150x150.png 17.220.01 – Electricity. Magnetism. General aspects – PDF Standards Store ?u= 32 32 JIS C 2550-4:2019 ?u=/product/publishers/jis/jis-c-2550-42019/ Wed, 06 Nov 2024 01:59:17 +0000 Test methods for electrical steel strip and sheet — Part 4: Methods of test for the determination of surface insulation resistance of electrical strip and sheet
Published By Publication Date Number of Pages
JIS 2019-03-20 19
]]> This part of JIS C 2550 specifies a measurement method for the determination of the characteristics of surface insulation resistance of magnetic sheet and strip.

This method is applicable to magnetic sheet and strip insulated on one or both surfaces and is suitable for manufacturing control in the application of insulation coatings.

NOTE The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

IEC 60404-11 : 1991 Magnetic materials — Part 11 : Method of test for the determination of surface insulation resistance of magnetic sheet and strip, Amendment 1 : 1998 and Amendment 2 : 2012 (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standards and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

]]> JIS C 2550-4:2011 ?u=/product/publishers/jis/jis-c-2550-42011/ Wed, 06 Nov 2024 01:59:17 +0000 Test methods for electrical steel strip and sheet - Part 4: Methods of test for the determination of surface insulation resistance of electrical strip and sheet
Published By Publication Date Number of Pages
JIS 2011-09-20 17
]]> This Standard is applicable to the measuring methods of surface insulation resistance of electrical steel strip and sheet.

This test method is applicable to electrical steel strip and sheet insulated on one or both surfaces, and is suitable for manufacturing control in the application of insulation coatings.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

lEC 60404-11 : 1999 Magnetic materials — Part 11 : Method of test for the determination of surface insulation resistance of magnetic sheet and strip (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21 -1.

]]> JIS C 2550-2:2011 ?u=/product/publishers/jis/jis-c-2550-22011/ Wed, 06 Nov 2024 01:59:16 +0000 Test methods for electrical steel strip and sheet - Part 2: Methods of determination of the geometrical characteristics of electrical steel strip and sheet
Published By Publication Date Number of Pages
JIS 2011-09-20 14
]]> This Standard specifies the test methods for the determination of the following geometrical characteristics of electrical steel strip and sheet.

– Flatness

– Residual curvature

– Edge camber

– Deviation from shearing line due to internal stresses

– Burr height of cut edge

This Standard applies to the electrical steel strip and sheet corresponding to JIS C 2552, JIS C 2553 and B.2, C.21 and C.22 of IEC 60404-1 : 2000.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

lEC 60404-9 : 1987 Magnetic materials.

Part 9 : Methods of determination of the geometrical characteristics of magnetic steel sheet and strip (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

]]> JIS C 2550-2:2020 ?u=/product/publishers/jis/jis-c-2550-22020/ Wed, 06 Nov 2024 01:59:16 +0000 Test methods for electrical steel strip and sheet - Part 2: Methods of determination of the geometrical characteristics of electrical steel strip and sheet
Published By Publication Date Number of Pages
JIS 2020-03-23 17
]]> This Standard specifies the measurement and test methods for the determination of the following geometrical characteristics of electrical steel strip and sheet:

– edge wave, wave factor;

– residual curvature;

– edge camber;

– deviation from the shearing line, internal stress;

– burr height.

This Standard applies to electrical steel strip and sheet specified in JIS C 2552 and JIS C 2553, and those corresponding to Classes B2, C21, C22 and C23 of IEC 60404-1:2016.

NOTE The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

IEC 60404-9:2018 Magnetic materials —Part 9: Methods of determination of the geometrical characteristics of electrical steel strip and sheet (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standards and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

]]> ISA 37.1-1975 (R1982) ?u=/product/publishers/isa/isa-37-1-1975-r1982/ Tue, 05 Nov 2024 20:18:04 +0000 Electrical Transducer Nomenclature & Terminology
Published By Publication Date Number of Pages
ISA 1982-12-14 28
]]> Full Description

Formerly ANSI MC6.1-1975 and then S37.1-1975(R1982). Establishes uniform nomenclature for transducers and uniform simplified terminology for transducer characteristics.

]]> IEC TR 62482:2008 ?u=/product/publishers/iec/iec-tr-624822008/ Tue, 05 Nov 2024 20:05:57 +0000 Electrical installations in ships - Electromagnetic compatibility - Optimising of cable installations on ships - Testing method of routing distance
Published By Publication Date Number of Pages
IEC 2008-02-22 20
]]> This Technical Report defines a test method to determine minimum routing distances in order to avoid crosstalk of fast transients (bursts). The test results may be applied to cable installations according to IEC 60092-352.

]]> IEC TR 61660-3:2000 ?u=/product/publishers/iec/iec-tr-61660-32000/ Tue, 05 Nov 2024 20:03:10 +0000 Courants de court-circuit dans les installations auxiliaires alimentées en courant continu dans les centrales et les postes - Partie 3 : exemples de calculs
Published By Publication Date Number of Pages
IEC 2000-02-29 102
]]> Courants de court-circuit dans les installations auxiliaires alimentées en courant continu dans les centrales et les postes - Partie 3 : exemples de calculs
Published By Publication Date Number of Pages
IEC 2000-02-29 102
]]> IEC TR 60909-4:2021 ?u=/product/publishers/iec/iec-tr-60909-42021/ Tue, 05 Nov 2024 20:01:17 +0000 Short-circuit currents in three-phase AC systems - Part 4: Examples for the calculation of short-circuit currents
Published By Publication Date Number of Pages
IEC 2021-06-24 84
]]> IEC TR 60909-4:2021 which is a Technical Report, is intended to give help for the application of IEC 60909-0 for the calculation of short-circuit currents in 50 Hz or 60 Hz three-phase AC systems.
This document does not include additional requirements but gives support for the modelling of electrical equipment in the positive-sequence, the negative-sequence and the zero-sequence system (Clause 4), the practical execution of calculations in a low-voltage system (Clause 5), a medium-voltage system with asynchronous motors (Clause 6) and a power station unit with its auxiliary network feeding a large number of medium-voltage asynchronous motors and low-voltage motor groups (Clause 7).
The three examples given in Clauses 5, 6 and 7 are similar to those given in IEC TR 60909-4:2000 but they are revised in accordance with IEC 60909-0, which replaces it. The example given in Clause 8 is new and mirrors the introduction of the new 6.8 of IEC 60909-0:2016.
Clause 9 gives the circuit diagram and the data of a test network and the results for a calculation carried out in accordance with IEC 60909-0, to offer the possibility for a comparison between the results found with a digital program for the calculation of short-circuit currents and the given results for and in a high-voltage network with power station units, generators, asynchronous motors and lines in four different voltage levels 380 kV, 110 kV, 30 kV and 10 kV.
This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adaption to IEC 60909-0:2016;
b) addition of an example for the calculation of short-circuit currents of wind power station units;
c) correction of errors.

]]> IEC TR 60909-4:2000 ?u=/product/publishers/iec/iec-tr-60909-42000/ Tue, 05 Nov 2024 20:01:16 +0000 Courants de court-circuit dans les réseaux triphasés à courant alternatif – Partie 4: Exemples pour le calcul des courants de court-circuit
Published By Publication Date Number of Pages
IEC 2000-07-21 140
]]> Courants de court-circuit dans les réseaux triphasés à courant alternatif – Partie 4: Exemples pour le calcul des courants de court-circuit
Published By Publication Date Number of Pages
IEC 2000-07-21 140
]]> IEC TR 60865-2:2015 ?u=/product/publishers/iec/iec-tr-60865-22015/ Tue, 05 Nov 2024 20:01:06 +0000 Short-circuit currents - Calculation of effects - Part 2: Examples of calculation
Published By Publication Date Number of Pages
IEC 2015-04-22 88
]]> IEC TR 60865-2:2015(E) shows the application of procedures for the calculation of mechanical and thermal effects due to short circuits as presented in IEC 60865-1. Thus, this technical report is an addition to IEC 60865-1. It does not, however, change the basis for standardized procedures given in that publication. This second edition cancels and replaces the first edition published in 1994 and constitutes a technical revision. It includes the following changes. The determinations for auto reclosure together with rigid conductors have been revised. The configurations in cases of flexible conductor arrangements have been changed. The influence of mid-span droppers to the span has been included. For vertical cable-connection the displacement and the tensile force onto the lower fixing point may be calculated now. Additional recommendations for foundation loads due to tensile forces have been added. The subclause for determination of the thermal equivalent short-circuits current has been deleted (is part of IEC 60909-0:2001 now). The standard IEC 60865-1:2011 has been reorganized and some of the symbols have been changed to follow the conceptual characteristic of international standards.

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