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SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR - PART 2-17: PARTICULAR REQUIREMENTS FOR TRANSFORMERS FOR SWITCH MODE POWER SUPPLIES (IEC 61558-2-17:1997, IDT)
MS IEC 61558-2-17:2007
Status : Original
Format : PDF

This Malaysian Standard applies to associated power transformers for switch mode power supplies, single-phase or polyphase, air-cooled: 

– separating transformers;
– isolating ....Read more transformers;
– safety isolating transformers,

having a rated supply voltage not exceeding 1000 V a.c. and a rated frequency of 500 Hz to 1 MHz, the rated output not exceeding:
– 10 kVA for single-phase transformers;
– 16 kVA for polyphase transformers.
NOTE 1 – For higher frequencies, this standard may be used as a guide.

The no-load output voltage or the rated output voltage do not exceed:
– 1000 V a.c. or 1 415 V ripple-free d.c for separating transformers;
– 500 V a.c. or 708 V ripple-free d.c for isolating transformers.
NOTE 2 – For isolating transformers, the rated output voltage may be up to 1000 V a.c. or 1415 V ripple-free d.c. in accordance with the national wiring rules or designed for special purposes.
– 50 V a.c. r.m.s. and/or 120 V ripple-free d.c for safety isolating transformers.

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Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems (IEC 61557-8:2007, IDT)
MS IEC 61557-8:2012
Status : Original
Format : PDF

This Malaysian Standard specifies the requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance to earth of unearthed IT a.c. systems, for IT a.c. system ....Read more s with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as of unearthed IT d.c. systems with voltages up to 1 500 V d.c. independent from the method of measuring. Close

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RESIDUAL CURRENT-OPERATED PROTECTIVE DEVICES (RCDS) FOR HOUSEHOLD AND SIMILAR USE - ELECTROMAGNETIC COMPATIBILITY (IEC 61543:1995, IDT)
MS IEC 61543:2008 (CONFIRMED:2011)
Status : 1st Confirmation
Format : PDF

This Malaysian Standard ensures electromagnetic compatibility of devices providing residual current protection, for rated voltages not exceeding 440 V a.c. intended principally for protection of perso ....Read more ns against shock hazards. Close

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ELECTRICAL ACCESSORIES - PORTABLE RESIDUAL CURRENT DEVICES WITHOUT INTEGRAL OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR USE (PRCDS) (IEC 61540:1999, IDT)
MS IEC 61540:2008
Status : Original
Format : PDF

This Malaysian Standard applies to portable devices consisting of a plug, a residual current device (RCD) and one or more socket-outlets or a provision for connection. They do not incorporate overcurr ....Read more ent protection. They are intended for single-phase circuits for rated currents not exceeding 16 A for rated voltages not exceeding 250 V a.c. or for rated current not exceeding 32 A for rated voltages not exceeding 130 V a.c. to earth. Close

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CABLE TRAY SYSTEMS AND CABLE LADDER SYSTEMS FOR CABLE MANAGEMENT (IEC 61537:2001, IDT)
MS IEC 61537:2007
Status : Original
Format : PDF

This Malaysian Standard specifies requirements and tests for cable tray systems and cable ladder systems intended for the support and accommodation of cables and possibly other electrical equipment in ....Read more electrical and/or communication systems installations. Where necessary, cable tray systems and cable ladder systems may be used for the segregation of cables. Close

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FUNCTIONAL SAFETY - SAFETY INSTRUMENTED SYSTEMS FOR THE PROCESS INDUSTRY SECTOR - PART 2: GUIDELINES FOR THE APPLICATION OF IEC 61511-1 (IEC 61511-2:2003, MOD)
MS 61511-2:2011
Status : Original
Format : PDF

This Malaysian Standard provides guidance on the specification, design, installation, operation and maintenance of Safety Instrumented Functions and related safety instrumented system as defined in IE ....Read more C 61511-1. This standard has been organized so that each clause and subclause number herein addresses the same clause number in IEC 61511-1. Close

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FUNCTIONAL SAFETY - SAFETY INSTRUMENTED SYSTEMS FOR THE PROCESS INDUSTRY SECTOR - PART 3: GUIDANCE FOR THE DETERMINATION OF THE REQUIRED SAFETY INTEGRITY LEVELS (IEC 61511-3:2003, MOD)
MS 61511-3:2011
Status : Original
Format : PDF

This Malaysian Standard covers those underlying concepts of risk, the relationship of risk to safety integrity. This Malaysian Standard can be applied when functional safety is achieved using one or m ....Read more ore safety instrumented functions for the protection of either personnel, the general public, or the environment and illustrates and risk assessment methods that may be carried out and also techniques/measures available for determining the required safety integrity levels. Close

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FUNCTIONAL SAFETY - SAFETY INSTRUMENTED SYSTEMS FOR THE PROCESS INDUSTRY SECTOR - PART 1: FRAMEWORK, DEFINITIONS, SYSTEM, HARDWARE AND SOFTWARE REQUIREMENTS (IEC 61511-1:2003, MOD)
MS 61511-1:2011
Status : Original
Format : PDF

This Malaysian Standard gives requirements for the specification, design, installation, operation and maintenance of a safety instrumented system, so that it can be confidently entrusted to place and/ ....Read more or maintain the process in a safe state. Close

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FUNCTIONAL SAFETY OF ELECTRICAL/ELECTRONIC/PROGRAMMABLE ELECTRONIC SAFETY-RELATED SYSTEMS - PART 3: SOFTWARE REQUIREMENTS (IEC 61508-3:1998, MOD)
MS 61508-3:2010
Status : Original
Format : PDF

This Malaysian Standard covers those aspects to be applies to any software forming part of a safety-related system or used to develop a safety-related system within the scope of IEC 61508-1 and IEC 61 ....Read more 508-2. This Malaysian Standard was an establishes requirements information relating to the software safety validation to be passed to the organisation carrying out the electrical/electronic/programmable electronic (E/E/PES) integration and safety lifecycle phases and activities which shall be applied during the design and development of the safety-related software include the application of measures and techniques, which are graded against the safety integrity level, for the avoidance of and control of faults and failures in the software. This Malaysian Standard provides requirements for information relating to the software safety validation to be passed to the organisation carrying out the E/E/PES intergration and requirements to be met by the organisation carrying out modifications to sa Close

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FUNCTIONAL SAFETY OF ELECTRICAL/ELECTRONIC/PROGRAMMABLE ELECTRONIC SAFETY - RELATED SYSTEMS - PART 1: GENERAL REQUIREMENTS (IEC 61508-1:1998, MOD)
MS 61508-1:2010
Status : Original
Format : PDF

This Malaysian Standard covers those aspects to be considered when electrical/electronic/programmable electronic systems (E/E/PESs) are used to carry out safety functions. A major objective of this st ....Read more andard is to facilitate the development of application sector in Malaysian Standard by the technical committees responsible for the application sector. This will allow all the relevant factors, associated with the application, to be fully taken into account and thereby meet the specific needs of the application sector. A dual objective of this standard is to enable the development of electrical/electronic/programmable electronic (E/E/PE) safety-related systems where application sector Malaysian Standards may not exist. Close

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