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Residual current operated circuit-breakers without integral overcurrent protection for household uses (RCCBs) - Part 1: General rules (Second Revision) (IEC 61008-1:2010, IDT)
MS IEC 61008-1:2012
Status : 2nd Revision
Format : PDF

This Malaysian Standard applies to residual current operated circuit-breakers functionally independent of, or functionally dependent on, line voltage, for household and similar uses, not incorporating ....Read more overcurrent protection (hereafter referred to as RCCBs), for rated voltages not exceeding 440 V a.c. with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz and rated currents not exceeding 125 A, intended principally for protection against shock hazard. 
These devices are intended to protect persons against indirect contact, the exposed conductive parts of the installation being connected to an appropriate earth electrode. They may be used to provide protection against fire hazards due to a persistent earth fault current, without the operation of the overcurrent protective device.

RCCBs having a rated residual operating current not exceeding 30 mA are also used as a means for additional protection in case of failure of the protective means against electric shock.

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Electromagnetic compatibility (EMC) - Part 4-34: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16 A per phase (First revision) (IEC 61000-4-34:2009, MOD)
MS 61000-4-34:2014
Status : 1st Revision
Format : PDF

This Malaysian Standard defines the immunity test methods and range of preferred test levels for electrical and electronic equipment connected to low-voltage power supply networks for voltage dips, sh ....Read more ort interruptions, and voltage variations. This standard applies to electrical and electronic equipment having a rated input current exceeding 16 A per phase. It covers equipment installed in residential areas as well as industrial machinery, specifically voltage dips and short interruptions for equipment connected to either 50 Hz or 60 Hz a.c. networks, including 1-phase and 3-phase mains. Close

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Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current
MS IEC 61000-3-2:2014
Status : 1st Revision
Format : PDF

This Malaysian Standard deals with the limitation of harmonic currents injected into the public supply system. 
It specifies limits of harmonic components of the input current which may be prod ....Read more uced by equipment tested under specified conditions.

Harmonic components are measured according to Annexes A and B.

This standard is applicable to electrical and electronic equipment having an input current up to and including 16 A per phase, and intended to be connected to public low-voltage distribution systems.

Arc welding equipment which is not professional equipment, with input current up to and including 16 A per phase, is included in this standard.

The tests according to this standard are type tests. Test conditions for particular equipment are given in Annex C. Close

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ELECTROMAGNETIC COMPATIBILITY (EMC) – PART 2-2: ENVIRONMENT – COMPATIBILITY LEVELS FOR LOW-FREQUENCY CONDUCTED DISTURBANCES AND SIGNALLING IN PUBLIC LOW-VOLTAGE POWER SUPPLY SYSTEMS (FIRST REVISION) (IEC 61000-2-2:2002, IDT)
MS IEC 61000-2-2:2005 (CONFIRMED:2011)
Status : 1st Revision
Format : PDF

This Malaysian Standard specifies the conducted disturbances in the frequency range from 0 kHz to 9 k Hz, with an extension up to 148.5 kHz specifically for mains signalling systems. It gives compatib ....Read more ility levels for public low voltage a.c. distribution systems having a nominal voltage up to 420 V, single-phase or 690 V, three-phase and a nominal frequency of 50 Hz or 60 Hz. 
The compatibility levels specified in this draft Malaysian Standard apply at the point of common coupling. At the power input terminals of equipment receiving its supply from the above systems the severity levels of the disturbances can, for the most part, be taken to be the same as the levels at the point of common coupling. In some situations this is not so, particularly in the case of a long line dedicated to the supply of a particular installation, or in the case of a disturbance generated or amplified within the installation of which the equipment forms a part. Close

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Electromagnetic compatibility (EMC) - Part 3-6: Limits - Assessment of emission limits for the connection of distorting installation to MV, HV and EHV power systems (First revision)
MS 61000-3-6:2010 (CONFIRMED:2016)
Status : 1st Revision
Format : PDF

This Malaysian Standard provides guidance on principles which can be used as the basis for determining the requirements for the connection of distorting installations to mega voltage (MV), high voltag ....Read more e (HV) and extra high voltage (EHV) public power systems (low voltage (LV) installations are covered in other Malaysian Standards). For the purposes of this standard, a distorting installation means an installation (which may be a load or a generator) that produces harmonics and/or interharmonics. The primary objective is to provide guidance to system operators or owners on engineering practices, which will facilitate the provision of adequate service quality for all connected customers. In addressing installations, this standard is not intended to replace equipment standards for emission limits. Close

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ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-11: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS - EQUIPMENT WITH RATED CURRENT ? 75 A AND SUBJECT TO CONDITIONAL CONNECTION (IEC 61000-3-11:2000, IDT)
MS IEC 61000-3-11:2005 (CONFIRMED:2011)
Status : 1st Confirmation
Format : PDF

This Malaysian Standard is concerned with the emission of voltage changes, voltage fluctuations and flicker produced by equipment and impressed on the public low-voltage supply system. 
It spec ....Read more ifies the limits of voltage changes produced by equipment tested under specified conditions.

This part of IEC 61000 is primarily applicable to electrical and electronic equipment having a rated input current from 16 A up to and including 75 A, which is intended to be connected to public low-voltage distribution systems having nominal system voltages of between 220 V and250 V, line-to-neutral at 50 Hz, and which is subject to conditional connection.

This part of IEC 61000 is also applicable to equipment within the scope of IEC 61000-3-3 that does not meet the limits when tested or evaluated with reference impedance Zref and is therefore subject to conditional connection. Equipment which meets the requirements of IEC 61000-3-3, is excluded from this part of IEC 61000.

Equipment tests made in Close

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Electromagnetic compatibility (EMC) - Part 4-27: Testing and measurement techniques - Unbalance, immunity test (IEC 61000-4-27:2000, IDT)
MS IEC 61000-4-27:2007 (CONFIRMED:2015)
Status : 1st Confirmation
Format : PDF

This Malaysian Standard is a basic EMC (electromagnetic compatibility) publication. It considers immunity tests for electric and/or electronic equipment (apparatus and system) in its electromagnetic e ....Read more nvironment. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial networks. Close

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Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current > 16 A and less than and ? 75 A per phase (First Revision) (IEC 61000-3-12:2011, IDT)
MS IEC 61000-3-12:2012
Status : 1st Revision
Format : PDF

This Malaysian Standard deals with the emission of disturbances due to harmonics. 
It is applicable to electrical and electronic equipment with a rated input current exceeding 16 A per phase an ....Read more d intended to be connected to public low-voltage a.c. distribution systems of the following types:
– nominal voltage up to 240 V, single-phase, two or three wires;
– nominal voltage up to 600 V, three-phase, three or four wires;
– nominal frequency 50 Hz or 60 Hz.

Other distribution systems are excluded. Close

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Electromagnetic compatibiltiy (EMC) - Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto (Second Revision) (IEC 61000-4-7:2009, IDT)
MS IEC 61000-4-7:2012
Status : 2nd Revision
Format : PDF

This Malaysian Standard is applicable to instrumentation intended for measuring spectral components in the frequency range up to 9 kHz which are superimposed on the fundamental of the power supply sys ....Read more tems at 50 Hz and 60 Hz. For practical considerations, this standard distinguishes between harmonics, inter harmonics and other components above the harmonic frequency range, up to 9 kHz. 

This Malaysian Standard defines the measurement instrumentation intended for testing individual items of equipment in accordance with emission limits given in certain standards (for example, harmonic current limits as given in IEC 61000-3-2) as well as for the measurement of harmonic currents and voltages in actual supply systems. Instrumentation for measurements above the harmonic frequency range, up to 9 kHz is tentatively defined.

NOTE 1: This document deals in detail with instruments based on the discrete Fourier transform.
NOTE 2 The description of the functions and structure of the measuring in Close

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Electromagnetic compatibility (EMC) - Part 4-14: Testing and measurement techniques - Voltage fluctuation immunity test for equipment with input current not exceeding 16 A per phase (First revision) (IEC 61000-4-14:2009, IDT)
MS IEC 61000-4-14:2012
Status : 1st Revision
Format : PDF

This Malaysian Standard is a basic electromagnetic compatibility (EMC) publication. It considers immunity tests for electrical and/or electronic equipment in their electromagnetic environment.
....Read more Only conducted phenomena are considered, including immunity tests for equipment connected
to public and industrial power supply networks.

This part aims to establish a reference for evaluating the immunity of electric and electronic
equipment when subjected to positive and negative low amplitude voltage fluctuations.

The voltage fluctuations considered by this standard do not include flicker, which is a physiological phenomenon due to lighting luminance fluctuations.

This Malaysian Standard applies to electrical and/or electronic equipment that have a rated input current up to 16 A per phase. It does not apply to electrical and/or electronic equipment connected to d.c. or a.c. 400 Hz distribution networks. Tests concerning these networks will be covered by
other standards.

The immunit Close

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