成人免费片-成人免费动作大片黄在线-成人免费在线-成人免费在线网站-欧美亚洲在线观看-欧美亚洲在线视频

網站公告-NOTICE
聯系我們
濟南航豐實業有限公司

電話:15168870138
聯系人:龐經理

網址:http://www.euup.cn  

廠址: 德州市禹城市莒鎮產業園26棟

經銷商地址:天橋區建華五金市場東區5-1  

魯ICP備09095923號-1

新聞資訊

當前位置:首頁 / 新聞資訊

耐火試驗后電纜橋架的性能和質量如何評估?

耐火試驗后,可從以下幾個方面對電纜橋架的性能和質量進行評估:

After the fire resistance test, the performance and quality of the cable tray can be evaluated from the following aspects:

外觀檢查

VISUAL INSPECTION

橋架本體:查看橋架是否有明顯變形、扭曲、塌陷等情況。若橋架結構出現嚴重變形,可能影響其后續的承載能力和正常使用。

Bridge body: Check whether the bridge has obvious deformation, distortion, collapse, etc. If the bridge structure undergoes severe deformation, it may affect its subsequent bearing capacity and normal use.

20210426054156633.png

防火涂層:檢查防火涂層的完整性,觀察是否有脫落、起皮、鼓泡等現象。若防火涂層損壞嚴重,會降低橋架的防火性能,影響其在火災中的防護效果。

Fireproof coating: Check the integrity of the fireproof coating and observe whether there are any phenomena such as peeling, blistering, etc. If the fireproof coating is severely damaged, it will reduce the fireproof performance of the bridge and affect its protective effect in a fire.

結構完整性評估

Structural integrity assessment

連接部位:檢查橋架的連接螺栓、連接板等是否松動、脫落,連接部位的焊縫是否有開裂等問題。連接部位的穩固性對于橋架在火災后的整體結構穩定性關重要。

Connection parts: Check whether the connection bolts, connection plates, etc. of the bridge are loose or detached, and whether there are cracks in the welds of the connection parts. The stability of the connecting parts is crucial for the overall structural stability of the bridge after a fire.

支撐部件:查看支撐橋架的支架、吊架等是否變形、損壞,能否繼續承擔橋架及其上電纜的重量。若支撐部件受損,可能導致橋架垮塌,引發事故。

Supporting components: Check whether the brackets, hangers, etc. supporting the bridge are deformed or damaged, and whether they can continue to bear the weight of the bridge and the cables on it. If the supporting components are damaged, it may cause the bridge to collapse and lead to safety accidents.

耐火性能評估

Fire resistance performance evaluation

維持工作時間:根據試驗記錄,確定橋架在耐火試驗中能夠維持其內部電纜正常工作的時間,判斷是否達到規定的耐火等級要求。如規定耐火時間為 90 分鐘,而試驗中橋架在 80 分鐘時就無法維持電纜正常工作,則未達到相應耐火等級。

Maintaining working hours: Based on the test records, determine the time during which the bridge can maintain the normal operation of its internal cables in the fire resistance test, and judge whether it meets the specified fire resistance level requirements. If the specified fire resistance time is 90 minutes, and the cable tray cannot maintain normal operation of the cable after 80 minutes in the test, then the corresponding fire resistance level has not been reached.

隔熱效果:通過測量試驗后橋架表面溫度分布,評估其隔熱性能。若橋架表面溫度過高,說明隔熱效果不佳,可能會對周圍環境和人員造成危害。

Thermal insulation effect: Evaluate the thermal insulation performance of the bridge by measuring the temperature distribution on the surface of the bridge after the test. If the surface temperature of the bridge is too high, it indicates poor insulation effect and may cause harm to the surrounding environment and personnel.

電氣性能評估

Electrical performance evaluation

絕緣性能:使用絕緣電阻測試儀測量橋架內電纜的絕緣電阻,檢查絕緣性能是否下降。若絕緣電阻值低于規定標準,可能存在漏電風險,影響電氣設備的運行。

Insulation performance: Use an insulation resistance tester to measure the insulation resistance of the cables inside the cable tray and check if the insulation performance has decreased. If the insulation resistance value is lower than the specified standard, there may be a risk of leakage, which affects the safe operation of electrical equipment.

接地性能:檢查橋架的接地系統是否完好,接地電阻是否符合要求。良好的接地性能對于保障人員和電氣設備穩定運行關重要。

Grounding performance: Check whether the grounding system of the bridge is intact and whether the grounding resistance meets the requirements. Good grounding performance is crucial for ensuring personnel safety and stable operation of electrical equipment.

材料性能評估

material property assessment

材質變化:通過金相分析、化學成分檢測等手段,檢查橋架材料在高溫耐火試驗后的微觀結構和化學成分變化。若材料性能發生明顯改變,可能影響橋架的長期使用性能。

Material changes: By means of metallographic analysis, chemical composition testing, and other methods, the microstructure and chemical composition changes of the bridge material after high-temperature fire resistance testing are inspected. If the material properties undergo significant changes, it may affect the long-term performance of the bridge.

防火材料性能:對防火涂層或防火填充材料進行性能測試,如檢測其防火隔熱性能、粘結強度等是否仍滿足要求。

Fireproof material performance: Conduct performance tests on fireproof coatings or fireproof filling materials, such as testing whether their fireproof insulation performance, bonding strength, etc. still meet the requirements.

只有當電纜橋架在外觀、結構完整性、耐火性能、電氣性能以及材料性能等方面均符合相關標準和要求時,才能判定其在耐火試驗后性能和質量良好,可繼續投入使用或滿足相應的工程需求。

Only when the cable tray meets the relevant standards and requirements in terms of appearance, structural integrity, fire resistance, electrical performance, and material performance, can it be judged that its performance and quality are good after the fire resistance test, and it can continue to be put into use or meet the corresponding engineering needs.


 
qq
售前咨詢熱線
15168870138
售后咨詢熱線
13465410318
主站蜘蛛池模板: 久久成人免费网站 | 国产美女做爰免费视频软件 | 国产在线精品福利91香蕉 | 成人精品亚洲 | 美女又黄又免费 | 精品国产免费人成在线观看 | 1717she国产精品免费视频 | 视频二区 中文字幕 欧美 | 午夜一级毛片免费视频 | 国产一区二区三区久久精品小说 | 欧美日韩一二区 | 一级特黄爽大片刺激 | 日本三级香港三级人妇gg在线 | 国产亚洲精品免费 | 99精品视频在线在线视频观看 | 欧美国产成人免费观看永久视频 | 亚洲成人一区在线 | 国产精品久久久久影视不卡 | 五月久久亚洲七七综合中文网 | 成人精品第一区二区三区 | 丰满寡妇一级毛片 | 国产韩国精品一区二区三区久久 | 加勒比一区在线 | 国产在线精品一区二区高清不卡 | 国产成人看片免费视频观看 | 国产欧美曰韩一区二区三区 | 分享一个无毒不卡免费国产 | 成人精品一区二区不卡视频 | 日韩一级片在线观看 | 在线观看国产精品一区 | 全国男人的天堂网站 | 国产高清在线视频 | 一本色道久久综合亚洲精品高清 | 中文字幕免费视频 | 视频国产91 | 成人精品综合免费视频 | 91亚洲精品久久91 | 最新在线步兵区 | 怡红院自拍| 日本www色视频成人免费网站 | 一级毛片免费不卡在线 |