Background
Established in 1995 as the Network Protection Unit, the Lightning Protection & EMC Unit (LP&EMC) embarks on lightning protection system, emphasizing on 3 major studies of lightning protection system. They are secondary protection effect, direct strike protection and bonding/grounding. The studies aim at ensuring that optimum lightning protection is applied without incurring cost/weight penalties for over-protection and avoid costly failures arising from under-protection. With the constantly increasing regulatory framework and safety standards, it is essential that companies anticipate future changes in lightning protection standards. In 1996, LP&EMC started to focus on the secondary effects of lightning on telecommunication equipments and facilities. This was done with the emphasis on surge protection device technologies. Hence, collaborations with TM, UTM and NTT, incorporating the Malaysian Standard MS 1460:1999, were established.Later in 1999, LP&EMC directed its attention to lightning direct strike protection through collaborations with UTM and NTT for the revision of Malaysian Standard MS 939. The new method for direct strike protection was installed; CTS (Charge Transfer System) or DAS ( Dissipation Array System).
In 2002, LP&EMC worked on grounding system modeling with the help of C DEGS software and the studies on lightning electromagnetic pulse (LEMP) of shielding effectiveness. At the same time, LP&EMC focused on designing a high power semiconductor device. Later in 2003, LP&EMC started the studies of measurement techniques for ground surge impedance in collaboration with UTM and MMU. With the establishment of EMC lab in the same year, studies of EMC-related problems and issues were expanded.
At present, the objectives of the LP & EMC are:
1. To develop means of protecting life and property from loss by lightning.
2. To assure greater public safety by extending the use of proper lightning protection systems.
3. To initiate and conduct lightning protection research and development.
4. To formulate and promote standards for lightning protection materials and systems.
5. To test and certify lightning protection system designs, installations, and inspections.
6. To promote and enforce high standards of quality and safety in the design and installation of lightning protection systems.
7. To promote EMC testing and research. Lightning Protection Laboratory offers:
• design expertise and testing using generators which simulate the high current and high
• voltage aspects of lightning strikes
• in-depth assessment and testing of electronic and surge protection devices
• management of national lightning protection R&D project
• direct strike protection
• Grounding and Bonding Application Areas:
• Telecommunication networks operations
• Telecommunication equipments Facilities:
• Surge Generator PSurge 30 with 1.2/50µs,8/20µs combination waveform, 30kV, 15kA and 8/20µs current waveform up to 30kA
• Surge Generator PSurge 6 with single waveform module: 100kHz ring- wave up to 6kV,500A, 10/700µs open circuit up to 6kV, 1/1000µs open circuit 6kV, 8/20us short circuit up to 6kV, 1.2/50µs and 8/20µs combination modul 6kV,3kA
• Surge Generator NSG 2050 1.2/50µs,8/20µs combination waveform up to 6kV, 3kA.
• Meger Det 2/2 1000 k? Ground Tester
• Siscal digital Soil Resistivity Tester Laboratory operation:
• Determination of upset or failure thresholds of equipment and systems
• Testing or design/testing consultancy
• Mobile test generators for fixed-equipment testing
• Surveys and assessment of equipment and systems Specifications test to include:
• ITUT-K series including K20, K21, K30, K35, K39, K44 and K45.
• IEC 1024-1
• IEC-1000-5Collaboration partners:
• UTM (2005 – 2006)
• MMU (2004)
• NTT, Japan (1996-1999)
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