Installation of lighting masts in the coal warehouse of the CHP

General Information The project for installation of 2 searchlight masts in the coal warehouse of the CHP is carried out on the basis of the oral technical assignment of the head of the PKO in connection with the dismantling of existing searchlight masts falling into the development zone of the new building building of the coal warehouse. Mounted masts - 20 m high, with a mobile lowered frame (crown), with a lightning receptacle. Lighting calculation was performed in the Dialux software complex, according to the results of which searchlights for large spaces of grades GO07-2000-00 and GO42-2000-02 "Quant" were selected. The spotlights together with the APR feeding them with the built-in RAM are installed on the mobile crown. Power supply of searchlight mast No. 1 (hereinafter PM-1) is performed from the existing PR-33 located in the existing housing of the coal loading building, PM-2 from the designed RP-3 located open on the concrete support with cable of APvBSHvng-LS grade with a section of 4x16, W4 and W3, respectively. The total installed power of 4 spotlights on one support Rust. = 8kW, U = 380B, I.ch. = 17.4A. For power supply of PM-2, due to the lack of a food point near an installation site, the C of W1 of the AVVG brand by section 4х150 for laying openly on a cable, on a technological platform, C of W2 of the APvBShvng-LS brand section 4х70 for laying in the earth and also distribution points of RP-1...3 is projected. The design provides for: protective grounding of equipment according to PUE-7. TN-C-S earthing system, all metal not current carrying parts of electroinstallations by creation of metal contact with the main grounding tire RP-1...3 are subject to grounding. The zero and grounding buses are connected to the grounded neutral on the 0.4 kV side of the transformer. Installation of protective disconnection device on sockets on DIN-rack for connection of electrical equipment in RP-1... 3. Erection works shall be performed in accordance with PUE-7, SNiP 3.05.06-85 and the Rules for labor protection during operation of electrical installations, in accordance with the instructions for installation and operation of the installed equipment .