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Engineering Tips-------The Meaning of Symbols on Hydropower Drawings (Part 1)

2018-12-13View Original

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Meaning of symbols on hydropower drawings (1): SC: Steel pipe; PC: PVC – flame-retardant plastic pipe; CT: Cable tray; WC: Installed concealed along the wall; WS: Installed exposed along the wall; CC: Installed concealed along the ceiling; F: Installed concealed within the floor; CE: Installed exposed along the ceiling; YJV: Cable; SYV: Television cable; PE: Grounding (yellow and green combined); PEN: Neutral grounding (blue). Three-phase wires (live wires): Phase A (yellow), Phase B (green), Phase C (red). KV: Voltage in kilovolts. BV: Loose wire. MEB: Main equipotential bonding; LEB: Local equipotential bonding

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