Analysis of existing effectiveness and method to enhance the lightning, shielding and earthing protection schemes applied on the Parit Raja’s Telecommunication Tower System
Lightning, one of nature’s most destructive forces, continues to wreck havoc on lives and property especially in today’s electronic environment. It has been shown by field experiences that telecommunication towers are one of the preferential points for direct lightning strike. This is mainly c...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/1894/1/24p%20CT%20VALKYIS%20MOHD%20KASIM.pdf http://eprints.uthm.edu.my/1894/2/CT%20VALKYIS%20MOHD%20KASIM%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1894/3/CT%20VALKYIS%20MOHD%20KASIM%20WATERMARK.pdf |
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| Summary: | Lightning, one of nature’s most destructive forces, continues to wreck havoc on
lives and property especially in today’s electronic environment. It has been
shown by field experiences that telecommunication towers are one of the
preferential points for direct lightning strike. This is mainly connected with the
specific features of their construction where the presence of high
telecommunication towers and their topographical location mostly at an open area
or at hills. The potential of lightning strike toward communication tower is high.
A telecommunication tower located at Parit Raja town was chosen as a case
study. The location of the tower is good to channel the coverage toward the
community. Unfortunately this tower is very vulnerable to lightning strike and
can giving impact to the surrounding buildings located nearby the tower itself
such as mosque, petrol pump, post office and the Bank Simpanan National (BSN)
bank. This thesis presents work that look at the current protection scheme against
the lightning strike and the effect on a telecommunication tower system and the
surrounding. Analysis study had been made towards existing protection
component or system and their effectiveness in mitigating the lightning strike
impact on the Parit Raja tower system. The investigation of the lightning
protection system used by the communication tower is sufficient enough to direct
the overload voltages of a lightning strike. Also, the analysis on the existing
grounding earthing system is able to accommodate and dissipate the surge current
to the earth. The method such as rolling sphere and cone protection had been used
to identify the safety area on the site due to direct strike. Some suggestions to
enhance the tower system protection such as installation external ground bus bar,
radial system, and new installation for connection of coaxial cable and
underground cable. Overall from this project, the weaknesses of system
protection were identified in the tower Parit Raja and the proposal as
improvement for the protection scheme in the future. |
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