入伏後全國多地持續高溫，工業廠區、數據中心、商業建築等場景用電負荷同步攀升，電氣設備進入全年故障高發期。高溫會加劇導體發熱、加速絕緣老化、造成電氣接點鬆動，若維運管理落實不到位，極易引發溫升超標、絕緣擊穿，甚至釀成電氣火災。 Since the start of the fu period, sustained high temperatures have prevailed across many regions nationwide. Power loads in industrial parks, data centers, commercial buildings and other venues have risen simultaneously, putting electrical equipment into the annual peak failure period. High temperatures aggravate conductor heating, accelerate insulation aging and loosen electrical contacts. Poor implementation of operation and maintenance management may easily lead to excessive temperature rise, insulation breakdown, and even electrical fires.
依據 GB 7251、GB 50150、GB 50054 等現行國家標準，以匯流排、配電盤兩大核心設備為主軸，整理夏季維運檢查重點、標準作業流程與異常隱患處理方案，為各類場景用電安全提供專業指導。 Based on current national standards including GB 7251, GB 50150 and GB 50054, this document focuses on two core equipment – busways and distribution panels. It sorts out key summer maintenance inspection points, standard operating procedures and disposal plans for abnormal hidden dangers, delivering professional guidance for power safety in all types of venues.
一、高溫環境下的核心風險 Core Risks Under High-Temperature Environments
載流降容、溫升疊加：環境溫度每上升 5℃，設備載流容量下降 5%~8%，長時間滿載運轉容易突破國家規範的溫升上限。
Current-carrying capacity derating & accumulated temperature rise: For every 5°C rise in ambient temperature, the equipment’s current-carrying capacity drops by 5%~8%. Long-term full-load operation tends to exceed the temperature rise limit specified by national codes.
絕緣老化、擊穿風險提升：高溫會加速有機絕緣材料熱裂解，搭配潮濕、粉塵環境，易產生爬電、絕緣擊穿問題。
Insulation aging & increased breakdown risk: High temperatures accelerate thermal cracking of organic insulating materials. Combined with humid and dusty environments, tracking discharge and insulation breakdown are prone to occur.
接點應力鬆弛，接頭發熱惡性循環：熱脹冷縮會加劇螺栓鬆動，接觸電阻持續上升，發熱狀況逐漸惡化。
Relaxed contact stress & vicious cycle of joint overheating: Thermal expansion and contraction aggravate bolt loosening, continuously raising contact resistance and worsening heat generation step by step.
散熱通道堵塞、內部蓄熱：粉塵、油汙阻塞散熱路徑，高溫環境下散熱效率會持續降低。
Blocked heat dissipation channels & internal heat accumulation: Dust and oil stains block heat dissipation paths, further reducing heat dissipation efficiency under high temperatures.
二、匯流排夏季維運核心重點Core Summer Operation & Maintenance Points for busways
匯流排為大電力輸配核心元件，亦是夏季溫升故障最高發設備，需針對巡檢、保養、故障處理建立完整閉環管理機制。 As the core component for high-power transmission and distribution, busways suffer the highest frequency of temperature rise faults in summer. A complete closed-loop management system covering inspection, maintenance and fault disposal shall be established.
1. 日常巡檢：提高巡檢頻率，鎖定高風險部位 Routine Inspection: Increase Inspection Frequency and Target High-Risk Positions
用電尖峰期間，一般場區每週巡檢至少 2 次，重要負載設備每日巡檢 1 次，尖峰時段加測溫度。 During peak power consumption hours, general premises shall be inspected at least twice a week, and critical load equipment once a day. Temperature measurement shall be conducted more frequently during peak periods.
紅外線測溫（核心作業）：重點檢測連接接頭、插接模組、轉角 / 變徑段、封閉豎井區段；依 GB 7251.2 規範，導體溫升限值為 70K，同一迴路相鄰部位溫差超過 15K 需列為重點觀察對象；建立測溫紀錄簿，同步記錄環境溫度、負載電流，長期比對溫度變化趨勢。 Infrared temperature measurement (core operation): Focus on connecting joints, plug-in modules, corner/reducer sections and enclosed shaft sections. Per GB 7251.2, the allowable temperature rise limit of conductors is 70K. Any temperature difference over 15K between adjacent positions on the same circuit shall be marked for key monitoring. Maintain a temperature measurement log to record ambient temperature and load current synchronously for long-term trend comparison.
外觀與環境檢查：確認機殼密封、牆體穿牆封堵是否完好，散熱風道有無堵塞，是否出現異常電磁噪音、燒焦異味。 Visual & environmental inspection: Verify intact cabinet sealing and wall penetration sealing, unobstructed ventilation ducts, and check for abnormal electromagnetic noise or burnt odor.
結構與接地檢查：支撐吊架、伸縮接頭無卡滯卡阻，接地主幹線連接完整且導通穩定。 Structural & earthing inspection: Ensure support hangers and expansion joints move smoothly without jamming, and the main earthing conductor is fully and reliably connected with stable conductivity.
2. 定期保養：高溫來臨前完成完整保養，每月追加複檢 Periodic Maintenance: Complete Full Maintenance Before High-Temperature Season, Conduct Supplementary Monthly Rechecks
全面清除機殼、散熱縫隙累積的粉塵與油汙，維持散熱順暢； Thoroughly remove dust and oil accumulated on cabinets and heat dissipation gaps to guarantee unobstructed heat dissipation.
斷電後依照原廠規範扭力重新鎖緊所有接頭螺栓，補償熱脹冷縮造成的應力鬆弛； After power cut, retighten all joint bolts in accordance with the manufacturer’s standard torque to compensate for stress relaxation caused by thermal expansion and contraction.
使用 1000V 絕緣電阻計測量相間、相對地絕緣電阻，低壓匯流排標準值應達 0.5MΩ 以上，若數值偏低需排查受潮、絕緣老化問題。 Test inter-phase and phase-to-earth insulation resistance with a 1000V megohmmeter. Low-voltage busways shall have insulation resistance above 0.5MΩ. Low readings require troubleshooting for dampness and insulation aging.
3. 常見隱患標準處理方式Standard Disposal Methods for Common Hidden Dangers
接頭溫度過高：若為過載造成需立即降低負載；若為接觸不良，需斷電打磨接觸面、塗佈導電膏，依標準扭力復鎖，測溫合格後才可復電；封閉式安裝場景增設強制通風設備。 Excessively hot joints: Immediately reduce loads if overheating is caused by overload. For poor contact, cut off power, polish contact surfaces, apply conductive grease, retighten bolts to standard torque, and restore power only after passing temperature re-inspection. Install forced ventilation equipment for enclosed installation scenarios.
絕緣電阻偏低：檢查是否滲水、凝露，加強通風除濕；絕緣層破損、老化需立即更換，禁止設備帶故障持續運轉。 Low insulation resistance: Check for water seepage and condensation, and enhance ventilation for dehumidification. Promptly replace damaged or aged insulation layers; operation with faulty equipment is strictly prohibited.
插接模組發熱：檢查插接彈片是否變形、氧化，輕微損傷可打磨修復，嚴重則直接更換零組件，確保插接到位、鎖固牢靠。 Overheating plug-in modules: Inspect plug-in springs for deformation and oxidation. Minor damage can be repaired by polishing, while severely damaged components shall be fully replaced to ensure full insertion and reliable locking.
眾孚企業 Optimus PRO 系列環氧樹脂澆鑄匯流排、流動床絕緣匯流排，採用一體式絕緣成型工藝，絕緣層與高純度無氧銅導體緊密貼合，耐溫等級達 H 級（180℃），高溫環境下載流穩定性更佳；緻密結構具備優異防潮、防塵、抗腐蝕能力，可有效避免夏季高溫高濕引發的絕緣老化、擊穿風險；低阻抗導體設計讓運轉溫升更低，長期使用無需頻繁維護，大幅減輕夏季維運負擔。 Optimus Series epoxy cast busways and fluidized bed insulated busways adopt integrated insulation molding technology. The insulation layer is tightly bonded with high-purity oxygen-free copper conductors, achieving Class H temperature resistance (180°C) for superior current-carrying stability under high temperatures. Its dense structure delivers excellent moisture-proof, dust-proof and anti-corrosion performance, effectively avoiding insulation aging and breakdown risks triggered by hot and humid summer weather. The low-impedance conductor design generates lower operating temperature rise and requires infrequent long-term maintenance, greatly reducing summer operation and maintenance workload.
三、低壓配電盤夏季維運核心重點 Core Summer Operation & Maintenance Points for Low-Voltage Distribution Panels
1. 日常巡檢 Routine Inspection
配電室環境溫度維持於 5℃~40℃，濕度控制在 75% 以下，確保冷氣、通風、除濕設備正常運作； Maintain the power distribution room ambient temperature between 5°C and 40°C with relative humidity below 75%, and ensure air conditioning, ventilation and dehumidification equipment operate normally.
監控各迴路電流、電壓，三相負載不平衡度不得超過 10%；檢查斷路器、接觸器是否出現異音、異味、變色； Monitor current and voltage of each circuit, and keep three-phase load unbalance within 10%. Inspect circuit breakers and contactors for abnormal noise, peculiar odors or discoloration.
電容補償盤重點檢查電容器是否鼓包、漏液，電抗器有無過熱現象。 For capacitor compensation panels, focus on checking capacitors for bulging and liquid leakage, and reactors for overheating.
2. 定期保養Periodic Maintenance
斷電清理盤內累積粉塵雜物，保持散熱風道暢通； Cut off power and clear accumulated dust and debris inside panels to keep heat dissipation ducts unobstructed.
重新鎖緊主迴路、二次端子固定件，消除熱脹冷縮造成的鬆動隱患； Retighten fasteners for main circuits and secondary terminals to eliminate loosening hazards caused by thermal expansion and contraction.
校驗保護設定數值與保護功能，確保與實際負載匹配，避免高溫下發生保護誤動作或拒動作。 Calibrate protection setpoints and functions to match actual loads, preventing false tripping or failure to trip under high temperatures.
3. 隱患處理 Hidden Danger Disposal
若發生元件過熱、電容鼓包、三相負載失衡等狀況，第一時間降低負載、斷電更換零件或調整負載分配，嚴禁設備帶故障持續運轉。 In case of component overheating, capacitor bulging, three-phase load imbalance and other faults, immediately reduce loads, cut off power for component replacement or load adjustment. Continuous operation of faulty equipment is strictly forbidden.
四、通用安全規範與長期改善建議General Safety Specifications & Long-Term Improvement Suggestions
1. 作業安全基本準則Basic Operation Safety Guidelines
停電檢修務必落實「停電、驗電、接地、掛警告牌、上鎖」五步流程，由持證電工執行；高溫帶電巡檢需完整配戴防護器具，嚴禁直接碰觸高溫帶電零件。 For power-off maintenance, strictly implement the five-step procedure of "power cut, voltage test, earthing, warning tag posting and lockout", which shall only be performed by certified electricians. Wear full protective gear during live inspection under high temperatures, and never touch hot live components directly.
2. 負載管理與應急處理原則 Load Management & Emergency Handling Principles
高溫期間避免設備滿載運轉，禁止未經許可私自增容；發現異常立即降載或斷電，故障排除且複檢合格後才可恢復供電；完整留存維運紀錄，建立「檢查－整改－複查」完整閉環流程。 Avoid full-load operation of equipment during hot weather; unauthorized capacity expansion is prohibited. Reduce loads or cut off power immediately once abnormalities are detected, and restore power only after faults are eliminated and re-inspection passes. Keep complete operation and maintenance records to form a full closed-loop process of "inspection – rectification – recheck".
3. 長期設備選型優化方案Long-Term Equipment Selection Optimization Scheme
從源頭減輕夏季維運壓力：高溫高濕、多粉塵場所優先選用耐溫、防護性能更佳的環氧樹脂澆鑄 / 流動床絕緣匯流排；大負載封閉安裝需預留充足降容空間；重要負載搭配智慧監控設備，由被動故障處理轉為主動預防管理。 Reduce summer maintenance pressure from the source: Prioritize epoxy cast /fluidized bed insulated busways with superior temperature resistance and protection for high-temperature, high-humidity and dusty venues. Reserve sufficient capacity derating margin for enclosed installation under heavy loads. Equip critical loads with intelligent monitoring devices to shift from passive fault disposal to active preventive management.
眾孚企業全系列配電產品，內部品控標準高於國家規範，可適用各類高溫複雜工況；配套完整技術服務體系，可從產品選型設計、交貨出貨到現場維運指導，為專案提供全流程支援。 All power distribution products of Optimus Series adopt internal quality control standards stricter than national codes, suitable for various complex high-temperature working conditions. Supported by a comprehensive technical service system, we provide full-process project support covering product selection & design, delivery and on-site operation & maintenance guidance.
若您有配電系統夏季隱患排查、設備升級改造、維運技術諮詢等需求，歡迎透過後台訊息聯繫，取得專業技術支援。 If you require services including summer hidden danger inspection of power distribution systems, equipment upgrading & renovation, or operation & maintenance technical consultation, please contact us via backend message to obtain professional technical support.