Prefabricated Substation National Standard
(1) Rated voltage: rau high-voltage switchgear thiab tswj cov khoom, raws li GB/T 11022. Rau low-voltage switchgear thiab tswj switchgear, raws li GB/T 14048.1 thiab GB 7251.1.
(2) Rated rwb thaiv tsev theem: rau high-voltage switchgear thiab tswj cov khoom, raws li GB / T 11022; rau low-voltage switchgear thiab tswj cov cuab yeej, raws li GB / T 14048.1 thiab GB 7251.1. Qhov tsawg kawg nkaus ntsuas impulse withstand voltage ntawm low-voltage switchgear thiab cov cuab yeej tswj yuav tsum yog tsawg kawg tus nqi ntawm Class IV overvoltage nyob rau hauv Table 1 ntawm GB/T 16935.1-1997.
(3) Rated zaus thiab tus lej ntawm theem: raws li GB / T 11022, GB / T 14048.1 thiab GB 7251.1.
(4) Rated tam sim no thiab kub nce: Qhov ntsuas tam sim no yog raws li GB / T 11022 thiab GB 7251.1. Qhov kub thiab txias ntawm high-voltage switchgear thiab tswj switchgear yog raws li GB / T 11022, thiab qhov kub thiab txias ntawm low-voltage switchgear thiab controlgear yog raws li GB 7251.1.
(5) Rated luv-lub sij hawm tiv taus tam sim no: rau high-voltage switchgear thiab tswj switchgear, raws li GB / T 11022; rau low-voltage switchgear thiab tswj switchgear, raws li GB 7251.1; rau transformers, raws li IEC 76-5 thiab GB 6450.
(6) Rated luv luv-circuit ntev: rau high-voltage switchgear thiab tswj cov khoom, raws li GB/T 11022; rau qis-voltage switchgear thiab tswj cov cuab yeej, raws li GB 7251.1.
(7) Rated fais fab mov voltage ntawm kev khiav hauj lwm mechanism thiab auxiliary Circuit Court: rau high-voltage switchgear thiab tswj switchgear, raws li GB / T 11022; rau cov khoom siv hluav taws xob tsawg-voltage switchgear, raws li GB 7251.1.
(8) Rated zog zaus ntawm kev khiav hauj lwm mechanism thiab auxiliary Circuit Court: rau high-voltage switchgear thiab tswj cov khoom, raws li GB / T 11022; rau cov khoom siv hluav taws xob tsawg-voltage switchgear, raws li GB 7251.1.
(9) Lub peev xwm siab tshaj plaws ntawm prefabricated substation: Lub peev xwm siab tshaj plaws ntawm prefabricated substation yog qhov siab tshaj plaws tus nqi ntawm lub transformer teev thaum lub substation tau tsim.
(10) Grounding: Ntxiv nrog rau GB / T11022, nws yuav tsum tau ua raws li cov cai hauv qab no. Ib tug grounding conductor yuav tsum tau muab txuas rau txhua yam ntawm prefabricated substation. Qhov ceev tam sim no ntawm tus neeg xyuas pib hauv av, xws li tus neeg xyuas pib tooj liab, yuav tsum tsis pub tshaj 200A / mm2 thaum lub sij hawm luv luv ntawm 1s, thiab yuav tsum tsis pub tshaj 125A / mm2 thaum lub sij hawm luv luv luv yog 3s; tab sis nws qhov chaw hla ntu yuav tsum tsis pub tsawg dua 30mm2. Nws qhov kawg yuav tsum muaj cov terminals tsim nyog rau kev txuas mus rau hauv av ntawm lub installation.
(11) Cov cuab yeej pabcuam: Rau cov khoom siv hluav taws xob tsawg (xws li teeb pom kev zoo, lub zog pabcuam, thiab lwm yam) hauv cov chaw ua haujlwm prefabricated, yog tias tsim nyog, raws li GB / T 14821.1 lossis GB7251.1 Kev Tiv Thaiv chav kawm: tiv thaiv cov neeg ua haujlwm los ntawm kev kov cov khoom txaus ntshai thiab tiv thaiv cov khoom txawv teb chaws los ntawm kev nkag mus thiab noo noo tiv thaiv cov cuab yeej yuav tsum tau ua.
(12) Kev tsim hluav taws xob tseem ceeb thiab kev xaiv cov cuab yeej tseem ceeb Cov qib kev tiv thaiv ntawm prefabricated substation enclosure yuav tsum tsis txhob qis dua IP23D hauv GB4208. Cov qib kev tiv thaiv siab dua tuaj yeem teev tseg raws li GB4208.
