Jurnal ELEMENTER Vol. 7, No. 2, November 2021 18 Dokumen diterima 7 November 2021 Dipublikasikan pada 30 Novemver 2021 Jurnal Politeknik Caltex Riau https://jurnal.pcr.ac.id/index.php/elementer/ | e- ISSN : 2460-5255 (Online) | p- ISSN : 2443-4159 (Print) | Pengaruh Ketebalan Material Terhadap Shielding effectiveness pada Frekuensi Rendah Mohammad Yanuar H 1 , Tiwi Riza Saputri 2 , Rizadi Sasmita Darwis 3 , dan Siska Novita Posma 4 1 Politeknik Caltex Riau, Program Studi Magister Terapan Teknik Komputer, email: yanuar@pcr.ac.id 3,4 Politeknik Caltex Riau, Program Studi Teknik Telekomunikasi, email: rizadi@pcr.ac.id, siska@pcr.ac.id [1] Abstrak Sekarang ini, kebutuhan akan perangkat elektronik dengan dimensi yang lebih kecil dan lebih ringkas, mengintegrasikan banyak fungsi semakin meningkat. Pada saat yang sama, kebutuhan akan kecepatan prosesor, clock, kecepatan data dan konektivitas nirkabel yang ada di mana- mana juga semakin meningkat. Peningkatan kebutuhan ini juga mengakibatkan peningkatan electromagnetic interference (EMI) dilingkungan. Walaupun jarang terjadi,peristiwa High- Impact, Low-Frequency (HILF) yang berpotensi menimbulkan dampak yang merusak pada sistem tenaga listrik. Pada penelitian ini dilakukan analisis shielding effectiveness (SE) pada frekuensi rendah saat ketebalan dari material shielding divariasi. Material yang digunakan pada penelitian ini adalah aluminium sheet dan aluminium foil, dan mengkombinasikan ketebalannya melalui skema single layer maupun double layer. Ketebalan material shielding mempengaruhi nilai shielding effectiveness, terbukti saat ketebalan material ditingkatkan menjadi 2 kali, didapatkan kenaikan nilai shielding effectiveness mencapai 207%. Penggunaan double layer menunjukkan peningkatan shielding effectiveness yang lebih baik daripada meningkatkan ketebalan material. Kata kunci: shielding effectiveness, EMI, EMC, HILF [2] Abstract Today, the need for electronic devices with smaller and more compact dimensions integrating many functions is increasing. At the same time, the need for ubiquitous processor speed, clock, data rate, and wireless connectivity is also increasing. This increase in demand also results in an increase in electromagnetic interference (EMI) in the environment. Although rare, High-Impact, Low-Frequency (HILF) events have the potential to have a deleterious impact on the electric power system. In this study, an analysis of shielding effectiveness (SE) was carried out at low frequencies when the thickness of the shielding material was varied. The materials used in this research are aluminum sheet and aluminum foil, and they combine their thickness through a single layer or double layer scheme. The thickness of the shielding material affects the value of shielding effectiveness; as evidenced when the thickness of the material is increased to 2 times, an increase in the value of shielding effectiveness reaches 207%. The use of double layers shows an increase in shielding effectiveness which is better than increasing the thickness of the material. Keywords: shielding effectiveness, EMI, EMC, HILF