Maintenance Factor in Installation of Tunnel Lighting

Autor:	Shoetsu Sakamoto, Satoshi Hirakawa, Tsuyoshi Sugawara, Kunio Toeda
Rok vydání:	2012
Předmět:	Traffic volume law Lumen maintenance Ventilation (architecture) Environmental science Exhaust gas Dirt Electrical and Electronic Engineering Automotive engineering law.invention
Zdroj:	JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN. 96:69-74
ISSN:	2185-1506 0019-2341
DOI:	10.2150/jieij.96.69
Popis:	Maintenance factors in installation of tunnel lighting have been considerd in terms of traffic volume and tunnel length based on results from investigations into the use of tunnels. Ventilation conditions in tunnels are drastically improved by reinforcing exhaust gas regulations for cars, and dirt on luminaire is also remarkably reduced. Further, the life times of light sources are advancing. Therefore, we studied lumen maintenance factor, survival factor and partial maintenance factor by using dirty luminaire to take maintenance factor into consideration and these suggested a new method of establishing maintenance factor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa7cdb4bff48171fd77d876e47b99b9b https://doi.org/10.2150/jieij.96.69 Zobrazit plný text záznamu