Engineering Tips-------The Meaning of Symbols on Hydropower Drawings (III)

2018-12-18View Original

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Meaning of symbols on hydropower drawings (III): Codes for the installation method of lighting fixtures – D: Ceiling-mounted; L: Chain-hung; G: Pipe-hung; B: Wall-mounted; R: Embedded; BR: Installed within the wall. Method of marking power distribution circuits: a–b(c×d); e–f. Where: a – Circuit number; b – Wire type; c – Number of wires; d – Wire cross-section; e – Installation method and diameter of the conduit; f – Location of installation. Method of marking ceiling-mounted lighting fixtures: Where: a – Number of lights; b – Model or designation; c – Number of bulbs per lighting fixture; d – Bulb capacity, in We; e – Height at which the bulbs are installed, in mf; f – Installation method. L – Type of light source: incandescent or fluorescent

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Engineering Tips-------The Meaning of Symbols on Hydropower Drawings (III)

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