電氣成套設備是電力系統(tǒng)的“骨架”，從高壓開關柜到低壓配電箱，從動力配電中心到電動機控制中心，其技術質量直接關系到整個供配電系統(tǒng)的安全與可靠。理解并執(zhí)行成套設備的技術標準體系，是每一位從業(yè)者的基本功。

Electrical complete equipment is the "skeleton" of the power system, from high-voltage switchgear to low-voltage distribution boxes, from power distribution centers to motor control centers. Its technical quality directly affects the safety and reliability of the entire power supply and distribution system. Understanding and implementing the technical standard system of complete equipment is a fundamental skill for every practitioner.

電氣成套設備的設計與制造建議嚴格遵循國家標準體系。核心標準包括：GB7251《低壓成套開關設備》系列、GB/T 4208《外殼防護等級（IP代碼）》、GB/T 50479《電力系統(tǒng)繼電保護及自動化設備柜(屏)工程技術規(guī)范》、GB50303《建筑電氣工程質量驗收規(guī)范》以及GB50171《電氣裝置安裝工程盤、柜及二次回路結線施工及驗收規(guī)范》等。所有配電箱、柜的技術指標建議符合規(guī)范及設計要求，產(chǎn)品應明確執(zhí)行的標準（國標、行標或企標），且企業(yè)標準應高于國標或行標。

The design and manufacturing of complete electrical equipment must strictly follow the national standard system. The core standards include: GB7251 "Low Voltage Switchgear" series, GB/T 4208 "Protection Class of Enclosures (IP Code)", GB/T 50479 "Technical Specification for Power System Relay Protection and Automation Equipment Cabinet (Screen) Engineering", GB50303 "Code for Acceptance of Building Electrical Engineering Quality", and GB50171 "Code for Construction and Acceptance of Electrical Equipment Installation Engineering Panel, Cabinet and Secondary Circuit Wiring". All technical indicators of distribution boxes and cabinets must comply with the specifications and design requirements. The products should clearly follow the standards (national standards, industry standards or enterprise standards), and the enterprise standards should be higher than the national standards or industry standards.

在柜體材料與結構方面，落地柜應采用符合國家標準的冷軋鋼板，厚度不低于2.0mm；照明配電箱及控制箱大于等于600mm的用2.0mm厚冷軋鋼板，小于600mm的用1.5mm厚冷軋鋼板。所有黑色金屬件應有可靠的防護層，鋼板和型鋼在噴塑前須進行除油、除銹、磷化處理。柜體結構應牢固，能承受運輸和正常使用條件下可能遇到的機械、電氣、熱應力及潮濕等影響。

In terms of cabinet materials and structure, floor cabinets should use cold-rolled steel plates that comply with national standards, with a thickness of not less than 2.0mm; lighting distribution boxes and control boxes with a thickness greater than or equal to 600mm should use 2.0mm thick cold-rolled steel plates, and those with a thickness less than 600mm should use 1.5mm thick cold-rolled steel plates. All black metal parts should have a reliable protective layer, and steel plates and sections must undergo degreasing, rust removal, and phosphating treatment before spraying. The cabinet structure should be sturdy and able to withstand mechanical, electrical, thermal stress, and moisture that may be encountered during transportation and normal use conditions.

電氣性能方面，成套設備需滿足短路耐受強度、溫升限值、介電強度等指標要求，絕緣電阻不低于1MΩ。元器件選型須遵循“安全優(yōu)先、適配適配、經(jīng)濟合理、合規(guī)達標”的原則。斷路器額定電流大于等于800A時采用框架式斷路器，630A及以下采用塑殼斷路器。布線與標識方面，導線截面按載流量及壓降校驗，色標統(tǒng)一，回路編號清晰可溯。每臺配電箱（柜）的銘牌須包含產(chǎn)品名稱、型號、廠家名稱、主要技術參數(shù)、出廠編號、生產(chǎn)日期等信息，箱柜門上附有主電路圖、系統(tǒng)圖、原理圖等。

In terms of electrical performance, the complete set of equipment must meet the requirements of short-circuit withstand strength, temperature rise limit, dielectric strength and other indicators, and the insulation resistance should not be less than 1M Ω. The selection of components must follow the principles of "safety first, adaptability, economic rationality, and compliance standards". When the rated current of the circuit breaker is greater than or equal to 800A, frame type circuit breakers are used, and molded case circuit breakers are used for 630A and below. In terms of wiring and identification, the wire cross-section is verified according to the current carrying capacity and voltage drop, the color code is unified, and the circuit number is clear and traceable. The nameplate of each distribution box (cabinet) must include information such as product name, model, manufacturer name, main technical parameters, factory number, production date, etc. The main circuit diagram, system diagram, schematic diagram, etc. are attached to the cabinet door.

成套廠須具備相應資質，產(chǎn)品須通過型式試驗并取得CCC強制性認證。出廠檢驗（含工頻耐壓、功能測試）和交接驗收流程的規(guī)范化執(zhí)行，是確保成套設備在建筑、工業(yè)、市政等場景中安全可靠運行的非常后一關。

The complete set factory must have corresponding qualifications, and the products must pass type tests and obtain CCC mandatory certification. The standardized execution of factory inspection (including power frequency withstand voltage, functional testing) and handover acceptance process is the final step to ensure the safe and reliable operation of complete equipment in construction, industrial, municipal and other scenarios.

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