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L'Eclairage à Paris, à Londres et à Berlin
Paperback
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ISBN10: 1718719760
ISBN13: 9781718719767
Publisher: Createspace
Published: May 5 2018
Pages: 38
Weight: 0.14
Height: 0.08 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9781718719767
Publisher: Createspace
Published: May 5 2018
Pages: 38
Weight: 0.14
Height: 0.08 Width: 6.00 Depth: 9.00
Language: French
... L'éclairage privé à Paris est généralement assuré par l'huile végétale, par l'huile de pétrole, par le gaz et par l'électricité; mais c'est le gaz qui a conservé le rôle principal. Le prix de la lumière obtenue avec les lampes à huile végétale revient à peu près de 30 à 35 millimes par lampe et par heure, suivant la nature des appareils. A une époque où la canalisation du gaz ne desservait pas encore toutes les rues, la municipalité avait à entretenir des réverbères à huile. La lampe coûtait, non compris la lanterne à poulie où elle était placée, 22 francs pour les appareils à becs plats avec double réflecteur, 40 francs pour les lampes à becs ronds Bordier avec double réflecteur. L'entretien et l'allumage coûtaient par jour, pour une moyenne de dix heures, sur la voie publique: les becs plats 25 centimes, pour la faible lumière de 16 dixièmes de carcel; les becs ronds 47 centimes pour un peu moins d'un demi-carcel. Cet éclairage fallacieux fut un peu amélioré avec les lampes à pétrole, dont chaque bec coûtait, pour dix heures de fonctionnement, environ 46 centimes. L'intensité lumineuse était alors de huit dixièmes de carcel par appareil...
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