Sistem Peringatan Dini Bahaya Kebakaran Akibat Tidak Berfungsinya Alat Listrik

Abstract

ASYAHDAN AMRULLAH. Sistem Peringatan Dini Bahaya Kebakaran Akibat Tidak Berfungsinya Alat Listrik Dibimbing Oleh MAHFUDDIN ZUHRI Kebakaran listrik rumah tangga sering disebabkan panas berlebih pada titik sambungan yang tidak terdeteksi proteksi konvensional seperti Miniature Circuit Breaker (MCB). Penelitian ini merancang sistem peringatan dini berbasis ESP32 untuk memantau arus, tegangan, dan Suhu titik sambungan dengan sensor PZELM- 004T dan SHT31, disertai pemutusan otomatis (relay) dan notifikasi Telegram. Pengujian meliputi kalibrasi Sensor terhadap alat ukur standar, waktu respons dan keandalan notifikasl pada berbagai sinyal Wi-Fi, serta pengaruh volume enkapsulasi terhadap deteksi suhu. Rata-rata error tegangan 2,870/0, arus 7,330/0, Suhu 2,020/0. Waktu tunda pemutusan dan notifikasi detlk; notifikasi terkirim 17 dari 17 pengujian (15 arus berlebih, 2 Suhu berlebih), termasuk Sinyal terlemah (RSSI -79 dBm). Kotak enkapsulasi kecil (f 24 cmS) mencatat Suhu hingga 23,5 oc lebih tinggi daripada kotak besar (+ 882 cm') pada arus relatif setara. Pada beban kontinu, Suhu naik dari 32,2 oc menjadi 58,0 oc dalam 21 menit, dengan arus sekitar 5,15-5,26 A sejak menit ke-8.

ASYAHDAN AMRULLAH. Early Warning System for Fire Hazards Caused by Electrical Appliance Malfunction. Supervised by MAHFUDDIN ZUHRI. Household electrical fires are often caused by overheating at connection points that go undetected by conventional protection such as a Miniature Circuit Breaker (MCB). This study designs an ESP32-based early warning system to monitor current, voltage, and temperature at connection points using PZEM-()04T and SHT31 sensors, with automatic relay disconnection and Telegram notifications. Testing covered sensor calibration against standard measuring instruments, response time and notification reliability under various Wi-Fi signals, and the effect of enclosure volume on temperature detection. Average errors were 2.87% for voltage, 7.33% for current, and 2.02% for temperature. Power cut-off and notification delay was 3.17-5.73 seconds; notifications were delivered in 17 Of 17 tests (15 overcurrent, 2 overtemperature), including at the weakest signal (RSSI 79 dBm). The small enclosure (+ 24 cm3) recorded temperatures up to 23.5 oc higher than the large enclosure (:E 882 cm') at relatively equal current. Under continuous load, temperature rose from 32.2 oc to 58.0 oc in 21 minutes, with current Of about 5.15-5.26 A from minute 8.