Analiza oznak vodnikov in kablov za nizkonapetostne električne inštalacije

Zupančič, Blaž (author), Kobav, Matej Bernard (mentor)

V diplomski nalogi sem se posvetil izbiri primernih tipov električnih kablov pri projektiranju elektroinštalacij. Obravnavani so nizkonapetostni kabli, ki se uporabljajo od priključno-merilne omarice do in znotraj objekta. Glavni poudarek je bil na požarni odpornosti kablov in izpolnjevanju zahtev, ki jih določajo veljavni predpisi in standardi. V teoretičnem delu sem predstavil osnovne vrste kablov, materiale, iz katerih so izdelani, ter načine njihovega označevanja. Pojasnil sem tudi pomen evropske uredbe CPR, ki določa razrede odzivnosti kablov na ogenj, ter prikazal, kako te zahteve vplivajo na projektiranje in izbiro kablov v različnih objektih. V praktičnem delu sem na treh primerih – osnovni šoli, poslovnem objektu in enostanovanjski hiši – prikazal, kako se glede na značilnosti objekta in stopnjo požarne zahtevnosti izberejo ustrezni tipi kablov. Poseben poudarek je bil na upoštevanju razreda požarne odpornosti (npr. Cca, B2ca, Eca) in morebitne potrebe po ohranitvi funkcije v primeru požara (npr. E30, E60, E90). Z nalogo sem želel prikazati, kako pomembno je, da projektant pri izbiri kablov upošteva ne le tehnične lastnosti, ampak tudi varnostne zahteve in predpise, saj to neposredno vpliva na varnost uporabnikov in celotnega objekta.

• Language: Slovenian
• Keywords: električni kabli, nizkonapetostni kabli, označevanje, požarna odpornost, CPR uredba, projektiranje elektroinštalacij, razredi odziva na ogenj, način polaganja, funkcija v požaru, izbira kablov, klasifikacija kablov, standardi
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2025
• PID: 20.500.12556/RUL-171729
• COBISS.SI-ID: 248214531
• Publication date in RUL: 01.09.2025

Secondary language

• Language: English
• Title: Analysis of Conductor and Cable Markings for Low-Voltage Electrical Installations

Abstract

In this thesis, I focused on the selection of appropriate types of electrical cables in the design of electrical installations. The study addresses low-voltage cables, used from the connection-metering cabinet to and within the building. The main emphasis was placed on the fire resistance of cables and compliance with the requirements set by applicable regulations and standards. In the theoretical part, I presented the basic types of cables, the materials from which they are made, and the methods of their labeling. I also explained the importance of the European CPR regulation, which defines the fire reaction classes of cables, and illustrated how these requirements affect the planning and selection of cables in various building types. In the practical part, I presented three case studies – a primary school, a commercial building, and a single-family house – showing how, depending on the characteristics of the building and its fire safety requirements, the appropriate types of cables are selected. Special attention was given to fire reaction classes (e.g., Cca, B2ca, Eca) and the possible need for fire performance (e.g., E30, E60, E90). The aim of this thesis was to demonstrate the importance of considering not only the technical properties of cables during planning, but also the relevant safety requirements and regulations, as these directly affect the safety of building users and the building itself.

• Keywords: electrical cables, low-voltage cables, labeling, fire resistance, CPR regulation, electrical installation design, fire reaction classes, cable installation methods, fire performance, cable selection, cable classification, standards