Safety is always an important consideration in cable engineering construction, and cable bridge plays the role of protecting cables and supporting load-bearing components in cabling engineering, so the importance of safety construction of cable engineering is obvious. However, after all, the application of cable bridge in our country is only about 10 years, and a few quality problems are inevitable. At this time, we need to have a certain understanding of the detection knowledge of cable bridge.

一、當(dāng)電纜橋架本身產(chǎn)生質(zhì)量原因時(shí)，如有些電纜橋架產(chǎn)出現(xiàn)品質(zhì)差、加工粗糙、焊點(diǎn)不牢、防腐層附著量不均勻和附著力不夠、防火或耐火性能差等原因時(shí)，無論是供貨商還是采購(gòu)商都需要對(duì)電纜橋架進(jìn)行檢測(cè)。

1. When the cable bridge itself produces quality reasons, such as poor quality, rough processing, weak solder joints, uneven adhesion and insufficient adhesion of anticorrosive coatings, poor fire resistance or fire resistance, both suppliers and purchasers need to test the cable bridge.

二、當(dāng)電纜橋架在組裝交付后發(fā)生垮塌，或者短短幾年就出現(xiàn)嚴(yán)重腐蝕，當(dāng)然 也可能存在工程選型不當(dāng)造成重大變形、彎曲等缺陷的情況，這時(shí)，也需要我們對(duì)電纜橋架進(jìn)行檢測(cè)。

2. When the cable bridge collapses after assembly and delivery, or serious corrosion occurs in a few years, of course, there may also be serious deformation, bending and other defects caused by improper engineering selection. At this time, we also need to test the cable bridge.

防腐電纜橋架檢測(cè)項(xiàng)目主要有橋架機(jī)械性能及承載能力試驗(yàn)、鹽霧試驗(yàn)、紫外線冷凝試驗(yàn)、耐酸堿性試驗(yàn)、防腐層厚度試驗(yàn)、防腐層附著力試驗(yàn)、抗沖擊試驗(yàn)、溫度適應(yīng)性試驗(yàn)、橋架組裝后連接螺栓孔處的密封性試驗(yàn)、阻燃試驗(yàn)、橋架電氣連續(xù)性試驗(yàn)、耐火試驗(yàn)、電磁屏蔽試驗(yàn)、抗靜電等項(xiàng)目

Testing items of anticorrosive cable bridge frame mainly include mechanical performance and bearing capacity test, salt spray test, ultraviolet condensation test, acid and alkali resistance test, thickness test of anticorrosive layer, adhesion test of anticorrosive layer, impact resistance test, temperature adaptability test, sealing test at bolt hole after bridge assembly, flame retardant test. Test, Bridge Electrical Continuity Test, Fire Resistance Test, Electromagnetic Shielding Test, Antistatic and other items

耐腐蝕鋼制電纜橋架檢測(cè)項(xiàng)目主要有橋架載荷試驗(yàn)、橋架率試驗(yàn)、橋架節(jié)材率測(cè)定、鹽霧試驗(yàn)、橋架電氣連續(xù)性試驗(yàn)、沖擊試驗(yàn)、耐酸性試驗(yàn)、防腐蝕層厚度測(cè)量、防腐層附著力測(cè)量、防腐層為金屬無機(jī)涂層的測(cè)定、防腐蝕層為有機(jī)涂層的測(cè)定、外觀及制造京都測(cè)量等項(xiàng)目。

Corrosion-resistant steel cable bridge detection projects mainly include bridge load test, energy-saving rate test, material-saving rate test, salt spray test, bridge electrical continuity test, impact test, acid resistance test, thickness measurement of anticorrosive layer, adhesion measurement of anticorrosive layer, determination of metal inorganic coating, anticorrosive layer. Corrosion layer is the determination of organic coating, appearance and manufacture of Kyoto measurement and other items.

塑料電纜橋架檢測(cè)項(xiàng)目主要有工作載荷試驗(yàn)、抗撞擊試驗(yàn)、低溫落錘沖擊試驗(yàn)、緊固件的機(jī)械強(qiáng)度試驗(yàn)、金屬嵌件軸向負(fù)荷的耐受能力試驗(yàn)、絕緣強(qiáng)度試驗(yàn)、電氣非傳導(dǎo)性試驗(yàn)、紫外線耐老化試驗(yàn)、耐水性能試驗(yàn)、耐腐蝕性能試驗(yàn)、耐候性試驗(yàn)、拉伸性能試驗(yàn)、阻燃性試驗(yàn)、煙密度試驗(yàn)、耐火性試驗(yàn)、屏蔽效能試驗(yàn)等項(xiàng)目。

The main testing items of plastic cable bridge are safety working load test, impact test, low temperature drop hammer impact test, mechanical strength test of fasteners, endurance test of metal inserts under axial load, insulation strength test, electrical non-conductivity test, ultraviolet aging test, water resistance test and corrosion resistance. Performance test, weatherability test, tensile test, flame retardant test, smoke density test, fire resistance test, shielding effectiveness test and other items.

建筑用網(wǎng)格式金屬電纜橋架檢測(cè)項(xiàng)目主要有外觀、制造精度、焊接質(zhì)量、防腐性能、電氣連續(xù)性、工作載荷性能等項(xiàng)目。

The inspection items of grid metal cable bridge frame for construction mainly include appearance, manufacturing accuracy, welding quality, anti-corrosion performance, electrical continuity, safety working load performance and so on.

公路用聚氨酯復(fù)合電纜橋架檢測(cè)項(xiàng)目主要有外觀、尺寸、縱向拉伸強(qiáng)度、縱向彎曲強(qiáng)度、沖擊強(qiáng)度、密度、巴柯爾硬度、負(fù)荷變形硬度、整體負(fù)載、氧指數(shù)、耐水性能、耐汽油性能、耐酸性能、耐堿性能、耐濕熱性能、耐低溫沖擊性能、耐人工加速老化性能等等項(xiàng)目。

Highway polyurethane composite cable tray inspection items mainly include appearance, size, longitudinal tensile strength, longitudinal bending strength, impact strength, density, Baker hardness, load deformation hardness, overall load, oxygen index, water resistance, gasoline resistance, acid resistance, alkali resistance, moisture and heat resistance, low temperature resistance. Impact performance, anti-accelerated aging performance and so on.

由此我們可以看出，不同用途的電纜橋架檢測(cè)項(xiàng)目還是有區(qū)別的。一款高質(zhì)量的電纜橋架應(yīng)該適應(yīng)其布線工程所需要的各種荷載和檔距條件，滿足其力學(xué)性能要求，同時(shí)具備結(jié)構(gòu)合理，對(duì)電纜起到有效的防腐、防火、耐火的保護(hù)。當(dāng)然，這些都需要我們嚴(yán)格按照檢測(cè)標(biāo)準(zhǔn)里規(guī)定的技術(shù)指標(biāo)來指導(dǎo)生產(chǎn)和施工，只有這樣才能真正保證電纜工程建設(shè)的性。

From this we can see that there are still differences in the detection items of cable bridge frames for different purposes. A high-quality cable bridge should meet all kinds of loads and spacing conditions required by its wiring project, meet its mechanical properties, and have reasonable structure, which can effectively protect the cable from corrosion, fire and fire. Of course, all of these require us to strictly follow the technical indicators specified in the test standards to guide production and construction, only in this way can we truly ensure the safety of cable engineering construction.

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