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Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods (First revision) (IEC 61643-21:2009, AMD. 1:2008, IDT)
MS IEC 61643-21:2012
Status : 1st Revision
Format : PDF

This Malaysian Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. < ....Read more br /> The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c Close

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Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and application principles (First revision) (IEC 61643-12:2008, IDT)
MS IEC 61643-12:2012
Status : 1st Revision
Format : PDF

This Malaysian Standard describes the principles for selection, operation, location and coordination of SPDs to be connected to 50 Hz to 60 Hz a.c. and to d.c. power circuits and equipment rated up to ....Read more  1 000 V r.m.s. or 1 500 V d.c. Close

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Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and test methods (Second revision) (IEC 61643-11:2011, IDT)
MS IEC 61643-11:2012
Status : 2nd Revision
Format : PDF

This Malaysian Standard is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are packaged to be connected to 50 ....Read more /60 Hz a.c. power circuits, and equipment rated up to 1 000 V r.m.s. Performance characteristics, standard methods for testing and ratings are established. These devices contain at least one nonlinear component and are intended to limit surge voltages and divert surge currents. 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. Close

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ENCLOSED LOW-VOLTAGE POWER SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GUIDE FOR TESTING UNDER CONDITIONS OF ARCING DUE TO INTERNAL FAULT
MS 61641:2012
Status : Original
Format : PDF

This Malaysian Standard applies to enclosed PSC-ASSEMBLIES manufactured according to MS IEC 61439-1and *MS IEC 61439-2. 
The purpose of this standard is to give method of testing of enclosed PS ....Read more C-ASSEMBLIES under conditions of arcing in air due to an internal fault.

The purpose of this test is to assess the ability of the PSC-ASSEMBLIES to limit the risk of personal injury and damage of PSC-ASSEMBLIES resulting from an internal arcing fault. This test is applicable to PSC-ASSEMBLIES with rated short circuit capacity of 15 kA and above and/or for Form 4 PSC-ASSEMBLIES. Other ratings shall be made either at the discretion of the manufacturer, or subject to an agreement between manufacturer and user. Close

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Household electrical appliances - Guidelines for consumer panel testing
MS 61592:2014
Status : Withdrawn
Format : PDF

This Malaysian Standard applies to panel testing household electrical appliances within the scope of Performance of household electrical appliances.

NOT FOR SALE

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Household range hoods - Methods for measuring performance (IEC 61591:1997, IDT)
MS IEC 61591:2012
Status : Withdrawal without replacement
Format : PDF

This Malaysian Standard applies to range hoods incorporating a fan for the recirculation or forced removal of air from above a hob situated in a household kitchen. The standard defines the main perfor ....Read more mance characteristics of range hoods, and methods of measurement. Close

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SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR - PART 2-2: PARTICULAR REQUIREMENTS FOR CONTROL TRANSFORMERS (IEC 61558-2-2:1997, IDT)
MS IEC 61558-2-2:2005
Status : Original
Format : PDF

This Malaysian Standard applies to stationary or portable, single-phase or poly-phases, aircooled control transformers associated or otherwise having a rated supply voltage not exceeding 1 000 V a.c. ....Read more or 1 415 V ripple free d.c. and rated frequency not exceeding 500 Hz and no limitation of the rated output.

This standard is applicable to transformers used between circuits where double or reinforced
insulation is not required by the installation rules or by the equipment specification.
This standard is applicable to dry type transformers. The windings may be encapsulated or
non-encapsulated.

NOTE 1 – Normally, these transformers are intended to be associated with equipment to provide voltages different from the supply voltage for the functional requirement of the equipment. The safety insulation may be provided (or completed) by other features of the equipment, such as the body. Parts of output circuits may be connected to the input circuit or to protective earth.

NOTE 2 – For t Close

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SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR - PART 2-15: PARTICULAR REQUIREMENTS FOR ISOLATING TRANSFORMERS FOR THE SUPPLY OF MEDICAL LOCATIONS (IEC 61558-2-15:1999, IDT)
MS IEC 61558-2-15:2007
Status : Original
Format : PDF

This Malaysian Standard deals with all aspects of safety such as electrical, thermal and mechanical. 
This standard applies to stationary, single-phase or polyphase, air-cooled (natural or forc ....Read more ed) isolating transformers for the supply of group II medical locations, designed to be permanently connected to the fixed wiring of IT supply system, having a rated supply voltage not exceeding 1 000 V a.c. and rated frequency not exceeding 500 Hz. The rated output shall not be less than 3 kVA and shall not exceed 10 kVA.

NOTE 1 – Details of IT supply systems are to be found in IEC 60364-3.
NOTE 2 – The wiring rules for group II medical locations are under consideration [1]* .

The no-load output voltage and the rated output voltage shall not exceed 250 V a.c. singlephase
or polyphase (phase-to-phase voltage). Isolating transformers are used where double or reinforced insulation between circuits is required by the installation rules or by the appliance specification.
This standard is appli Close

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SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR - PART 2-7: PARTICULAR REQUIREMENTS FOR TRANSFORMERS FOR TOYS (IEC 61558-2-7:1997, IDT)
MS IEC 61558-2-7:2007
Status : Original
Format : PDF

This Malaysian Standard applies to transformers for toys having a rated supply voltage not exceeding 250 V a.c., a rated frequency of 50/60 Hz, a rated output voltage not exceeding 24 V a.c. or 33 V r ....Read more ipple-free d.c. and a rated output not exceeding 200 VA and a rated output current not exceeding 10 A. This standard does not in general take into account playing with the transformer by children. Close

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SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR DEVICES - PART 2-13: PARTICULAR REQUIREMENTS FOR AUTO-TRANSFORMERS FOR GENERAL USE (IEC 61558-2-13:1999, IDT)
MS IEC 61558-2-13:2007
Status : Original
Format : PDF

This Malaysian Standard deals with all aspects of safety such as electrical, thermal and mechanical. 
This standard applies to stationary or portable, single-phase or polyphase, aircooled (natu ....Read more ral or forced), independent or associated auto-transformers, having a rated supply voltage not exceeding 1 000 V a.c., a rated frequency not exceeding 500 Hz. The core power does not exceed:
– 1 kVA for single-phase auto-transformers;
– 5 kVA for polyphase auto-transformers.

The rated output does not exceed:
– 20 kVA for single-phase auto-transformers;
– 100 kVA for polyphase auto-transformers.

This standard is also applicable to auto-transformers having a core power up to 40 kVA, however such transformers are considered as special transformers and are subjected to an agreement between the purchaser and the supplier. Such special auto-transformers have no limitation for the rated output. The no-load output voltage and the rated output voltage do not exceed 1 000 V a.c.
or 1 415 V ripple- Close

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