Primerjava stroškov varnostne razsvetljave glede na način izvedbe

GROBOLJŠEK, LUKA (author), Bizjak, Grega (mentor)

Varnostna razsvetljava je razsvetljava, ki je namenjena delovanju v primeru izpada električne energije in je obvezna v vseh javnih in večstanovanjskih zgradbah. Varnostna razsvetljava je ena izmed podkategorij zasilne razsvetljave. V primeru izpada električne energije varnostna razsvetljava dobi napajanje preko lastne akumulatorske baterije ali preko centralnega napajanja, ki je namenjeno vsem varnostnim svetilkam. V svojem diplomskem delu želim prikazati primerjavo investicijskih in vzdrževalnih stroškov med tremi različnimi izvedbami varnostne razsvetljave. Varnostna razsvetljava v stavbah je namenjena dolgotrajnemu obratovanju, zato sem se odločil, da bom stroške primerjal za dobo 20 let. Odločil sem se, da bom primerjal tri med seboj najbolj različne sisteme, in sicer sistem varnostne razsvetljave z lokalnim napajanjem, sistem varnostne razsvetljave z lokalnim napajanjem s centralnim vodenjem ter sistem varnostne razsvetljave s centralnim napajanjem. Odločil sem se izdelati čimbolj podroben izračun stroškov, kar mi bo na koncu dalo nekaj smiselnih ugotovitev. Zato sem poleg investicijskih stroškov vključil še vzdrževalne stroške, pod katere spadajo periodični pregledi ter, ko pride do iztrošenja opreme, zamenjava opreme. Ko sem naredil izračune vseh treh sistemov, sem iz rezultatov ugotovil, da bi za dobo 20 let v stavbi s 140 varnostnimi svetilkami bil najcenejši sistem varnostne razsvetljave s centralnim napajanjem. Po stroških mu sledi sistem varnostne razsvetljave z lokalnim napajanjem s centralnim vodenjem in nato še najdražji – sistem varnostne razsvetljave z lokalnim napajanjem. Skozi pisanje svojega diplomskega dela sem tudi ugotovil, da za sistem varnostne razsvetljave z lokalnim napajanjem v Sloveniji nimamo predpisano, na kakšen način ter na koliko časa se morajo opravljati pregledi. Pri tovrstnem sistemu so pregledi odvisni od navodil oziroma priporočil proizvajalca opreme.

• Language: Slovenian
• Keywords: varnostna razsvetljava, centralno napajanje
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2022
• PID: 20.500.12556/RUL-137823
• COBISS.SI-ID: 113577475
• Publication date in RUL: 01.07.2022

Secondary language

• Language: English
• Title: Comparison of costs of different emergency escape lighting systems

Abstract

Emergency luminaires are type of lighting used in case of electricity fallout, an obligatory feature in all public and multi-residential buildings. Emergency luminaires are a sub-category of emergency lighting. In case of failure of the main source of electricity, this kind of lighting is powered either by its own rechargeable battery or via a transitional source of power only distributed to the emergency luminaires. The purpose of this thesis is to compare the investment and operational costs of three different variations of emergency lighting. Since the fixtures are meant to be used in the long term, the comparison is designed for a period of 20 years. The system compared differ a lot: there is a system of emergency lighting powered by a localised source of power, one with a localised source of power controlled by a central unit, and one with a centralised source of power. Calculations made were based on a detailed specification of costs to draw as sensible conclusion as possible. Besides investment cost, operational costs have been included in the research. The latter also include periodical control assessment of equipment and replacing the out-dated fixtures with new ones. After calculating the costs for all three types of lighting it was proven that over a period of 20 years, in a building with 140 emergency luminares, the system with a centralised power source would be the cheapest. It is followed by the one with localised power connected to a centralised unit, while the emergency illumination powered via localised battery is the most expensive. This thesis also proven that Slovenia has no regulation on emergency lighting with localised power source in regard to its maintenance (frequency and quality). Maintenance of this type of a system is based on manufacturer instructions or guidelines.

• Keywords: emergency luminaires, central power supply