Material composition testing related to measurement instrument enclosure design and safety

Begeš, Gaber (avtor), Hudoklin, Domen (avtor)

The polymeric insulating materials widely used in measuring instrument enclosures must meet specific flammability requirements. In this study, we systematically assessed the impact of minor compositional changes, such as pigments and fillers, on horizontal burning (HB) classification according to the EN 60695-11-10 standard. We tested 64 polymer combinations at thicknesses of 1.5 mm and 3.0 mm, classifying samples into HB, HB40 or HB75 categories. The results demonstrated that additives significantly influenced the HB classifications more than thickness. Specifically, we classified 31 samples as HB, 16 as HB40, 15 as HB75, while two were unclassifiable. Several material groups consistently achieved specific HB classifications regardless of minor additive variations. These findings offer manufacturers clear guidance for selecting polymer-additive systems, facilitating informed decisions and enabling a streamlined “worst-case” testing strategy. Ultimately, this approach enhances manufacturers’ ability to efficiently achieve product safety compliance, reducing certification costs without compromising safety.

• Jezik: Angleški jezik
• Ključne besede: testing, horizontal burning, insulation materials, electric safety
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 16 str.
• Številčenje: Vol. 15, iss. 10, art. 5480
• PID: 20.500.12556/RUL-169250
• UDK: 621.317
• ISSN pri članku: 2076-3417
• DOI: 10.3390/app15105480
• COBISS.SI-ID: 236533251
• Datum objave v RUL: 21.05.2025

Gradivo je del revije

• Naslov: Applied sciences
• Skrajšan naslov: Appl. sci.
• Založnik: MDPI
• ISSN: 2076-3417
• COBISS.SI-ID: 522979353

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: preskušanje, vodoravna gorljivost, izolacijski material, električna varnost

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0225
• Naslov: Metrologija in kakovost

• Financer: Ministrstvo za gospodarstvo, turizem in šport, Urad RS za meroslovje
• Številka projekta: 6401-18/2008/70
• Naslov: Pogodba o opravljanju dejavnosti in izpolnjevanju obveznosti nosilca nacionalnega etalona za področje termodinamična temperatura in za področje vlažnost