濟南電纜橋架｜驗收別馬虎，這7個核心要點記牢不返工

　　Jinan cable tray | Don't be careless in acceptance, remember these 7 core points and don't rework

　　搞電氣工程、濟南本地項目施工的兄弟們，想必都清楚一個道理：電纜橋架施工，三分靠安裝，七分靠驗收。很多濟南的施工隊，辛辛苦苦把橋架裝完，結果驗收時因為一些小細節沒做到位，被要求返工整改，既耽誤工期，又增加成本，得不償失。經常有兄弟問我：“濟南電纜橋架驗收，到底有哪些要點？”今天就實打實地跟大伙嘮嘮，這7個核心驗收要點，每一個都不能馬虎，記牢了，驗收一次性通過，少走冤枉路。

　　Brothers who are engaged in electrical engineering and local project construction in Jinan must know one truth: cable tray construction relies on installation in three parts and acceptance in seven parts. Many construction teams in Jinan have worked hard to install cable trays, but during the acceptance inspection, they were required to rework and rectify some small details that were not done properly. This not only delays the construction period but also increases costs, which is not worth the loss. My brothers often ask me, 'What are the key points of Jinan cable tray acceptance?' Today, I will talk to everyone in a practical way. Each of these 7 core acceptance points should not be taken lightly. Remember to pass the acceptance at once and avoid taking the wrong path.

　　先跟大家說句實在話，濟南電纜橋架的驗收，不是走形式，每一個要點都關系到后期電纜的運行和工程質量，不管是市政項目、工業廠房，還是小區、寫字樓的電氣工程，驗收標準都離不開這幾點。尤其是現在濟南對電氣工程質量要求越來越嚴格，驗收時一點疏漏，都可能導致整改，甚影響整個項目的交付，所以大家一定要重視起來。

　　To be honest with everyone, the acceptance of Jinan cable trays is not a formality. Every key point is related to the safe operation and engineering quality of cables in the later stage. Whether it is municipal projects, industrial plants, or electrical engineering in residential areas and office buildings, the acceptance standards cannot be separated from these points. Especially now that Jinan has increasingly strict requirements for the quality of electrical engineering, even a slight oversight during acceptance can lead to rectification and even affect the delivery of the entire project. Therefore, everyone must take it seriously.

　　個驗收要點，也是很多施工隊容易忽略的——橋架連接部位的跨接線。大家記住，橋架連接的地方，必須安裝截面積不小于4平方毫米的跨接線。這可不是多余的要求，跨接線的作用是保證橋架的電氣連續性，避免出現靜電積聚，保護電纜，尤其是在濟南一些有防爆、防靜電要求的工業項目中，這一點更是重中之重，驗收時一定會檢查，少了或者截面積不夠，肯定過不了。

　　The first key point of acceptance, which is also easily overlooked by many construction teams, is the jumper wire at the bridge connection part. Remember, at the connection point of the bridge, a jumper wire with a cross-sectional area of not less than 4 square millimeters must be installed. This is not an unnecessary requirement. The role of jumper wires is to ensure the electrical continuity of the bridge, avoid static electricity accumulation, and protect cable safety, especially in some industrial projects with explosion-proof and anti-static requirements in Jinan. This is of utmost importance, and during acceptance, it will be checked carefully. If there is a shortage or insufficient cross-sectional area, it will definitely not pass.

　　第二個要點，橋架跟支架橫桿的固定方式。很多兄弟圖省事，會用焊接或者鐵絲固定，這是不行的。驗收時明確要求，橋架跟支架橫桿必須用螺栓固定，而且螺栓要擰緊、固定牢固，不能出現松動。這樣做是為了保證橋架的穩定性，避免后期使用過程中，因為震動導致橋架移位、脫落，損壞電纜。

　　The second key point is the fixing method of the bridge frame and the bracket crossbar. Many brothers try to save time by using welding or wire fixation, which is absolutely not acceptable. During the acceptance inspection, it is explicitly required that the bridge and bracket crossbars must be fixed with bolts, and the bolts must be tightened and firmly fixed without looseness. This is done to ensure the stability of the cable tray and avoid displacement, detachment, and cable damage caused by vibration during later use.

　　第三個要點，伸縮結和補償器的設置。橋架直段安裝長度超過30米時，必須設置伸縮結；如果橋架跨越變形縫（比如墻面、地面的伸縮縫），還要額外增加補償器。濟南的氣候四季分明，溫差較大，橋架會隨著溫度變化熱脹冷縮，伸縮結和補償器能有效緩解這種變形帶來的應力，避免橋架開裂、損壞，驗收時會核查安裝距離和數量，少裝、漏裝都要整改。

　　The third key point is the setting of expansion joints and compensators. When the installation length of the straight section of the bridge exceeds 30 meters, expansion joints must be installed; If the bridge spans over deformation joints (such as expansion joints on walls or floors), additional compensators need to be added. Jinan has a distinct climate with four seasons and large temperature differences. The bridge frame will expand and contract with temperature changes. Expansion joints and compensators can effectively alleviate the stress caused by this deformation, avoid cracking and damage to the bridge frame. During acceptance, the installation distance and quantity will be checked, and any missing or insufficient installation will be rectified.

　　第四個要點，吊桿的直徑要求。如果橋架用吊桿固定，吊桿的直徑不能小于8毫米。很多施工隊為了節省成本，會用細一點的吊桿，看似能固定住，實則承載力不足，后期橋架加上電纜的重量，很容易導致吊桿彎曲、斷裂，引發隱患。驗收時，會實際測量吊桿直徑，達不到8毫米，必須全部更換。

　　The fourth key point is the diameter requirement for the suspension rod. If the bridge is fixed with suspension rods, the diameter of the suspension rods must not be less than 8 millimeters. Many construction teams use thinner suspension rods in order to save costs. Although they may seem to be able to fix them, their load-bearing capacity is insufficient. In the later stage, the weight of the bridge and cables can easily cause the suspension rods to bend or break, posing a safety hazard. During acceptance, the actual diameter of the suspension rod will be measured, and if it does not reach 8 millimeters, it must be completely replaced.

　　第五個要點，支、吊架的安裝距離。橋架支、吊架的距離，不能大于2米，也就是說，每2米之內，必須有一個支、吊架來支撐橋架。如果距離太遠，橋架中間會下垂、變形，不僅影響美觀，還會影響電纜的敷設和運行。尤其是濟南一些跨度較大的車間、廠房，更要嚴格按照這個標準來，驗收時會逐段核查，超標就必須增加支、吊架。

　　The fifth key point is the installation distance of supports and hangers. The distance between bridge supports and hangers cannot exceed 2 meters, which means that within every 2 meters, there must be one support or hanger to support the bridge. If the distance is too far, the middle of the bridge will sag and deform, which not only affects the appearance, but also affects the laying and safe operation of the cable. Especially for some workshops and factories with large spans in Jinan, this standard must be strictly followed. During acceptance, each section will be checked, and if it exceeds the standard, additional supports and hangers must be added.

　　第六個要點，彎頭處的支架設置。橋架彎頭處以彎頭60公分范圍內，必須設置支架。彎頭部位是橋架的受力薄弱點，而且敷設電纜時，彎頭處會有額外的拉力和壓力，設置支架能有效固定彎頭，避免彎頭變形、松動，同時也能保護電纜，防止電纜在彎頭處被磨損。很多施工隊會漏裝這個支架，驗收時很容易被發現，一定要記牢。

　　The sixth point is the setting of brackets at the bend. A bracket must be installed within a range of 60 centimeters at the bend of the bridge. The bend is the weak point of the bridge frame, and when laying cables, there will be additional tension and pressure at the bend. Setting up brackets can effectively fix the bend, avoid deformation and loosening of the bend, and also protect the cable from wear and tear at the bend. Many construction teams may miss installing this bracket, which can easily be discovered during inspection and must be remembered.

　　第七個要點，蓋板和防火封堵。橋架穿完電纜后，必須及時蓋上蓋板，不能裸露電纜；而且橋架穿墻的洞口，要做好防火封堵。蓋上蓋板是為了保護電纜，防止灰塵、雜物進入，同時也能起到一定的防護作用；防火封堵則是為了防范火災隱患，避免火災時火勢通過橋架洞口蔓延，這也是濟南消防驗收和電氣驗收的，缺一不可。

　　The seventh key point is the cover plate and fireproof sealing. After the cable tray is installed, it must be covered with a cover plate in a timely manner and the cable cannot be exposed; And the openings of the bridge through the wall should be properly sealed for fire prevention. The cover plate is used to protect the cable, prevent dust and debris from entering, and also provide some protection; Fireproof sealing is to prevent fire hazards and prevent the spread of fire through bridge openings during a fire. This is also a key focus of Jinan's fire and electrical inspections, and both are indispensable.

　　在這里跟濟南的施工兄弟們提個醒，電纜橋架驗收，沒有“差不多”，只有“合格”和“不合格”。以上這7個要點，都是驗收時的必查項，哪怕忽略一個小細節，都可能導致返工。很多施工隊之所以驗收不過關，不是技術不行，而是太粗心，覺得一些小細節無關緊要，反而耽誤了工期、增加了成本。

　　Here's a reminder to the construction brothers in Jinan that there is no such thing as "almost" in the acceptance of cable trays, only "qualified" and "unqualified". The above 7 points are all necessary items for inspection during acceptance, and even neglecting a small detail may lead to rework. Many construction teams fail to pass the acceptance inspection not because of poor technical skills, but because they are too careless and think that some small details are irrelevant, which ultimately delays the construction period and increases costs.

　　總結一下，濟南電纜橋架驗收，核心就是這7個要點：連接部位跨接線≥4平方毫米，橋架與支架用螺栓固定，直段超30米設伸縮結、跨變形縫加補償器，吊桿直徑≥8毫米，支吊架距離≤2米，彎頭60公分內設支架，穿纜后蓋蓋板、穿墻洞口做防火封堵。記牢這些要點，施工時嚴格按照標準來，驗收就能一次性通過，省心又省力。

　　To summarize, the core of Jinan cable tray acceptance is these 7 points: the jumper wire at the connection part should be ≥ 4 square millimeters, the tray and bracket should be fixed with bolts, expansion joints should be installed for straight sections exceeding 30 meters, compensators should be added for cross deformation joints, the diameter of the suspension rod should be ≥ 8 millimeters, the distance between the support and hanger should be ≤ 2 meters, brackets should be installed within 60 centimeters of the elbow, and the cable should be covered with a cover plate and fireproof sealing should be done for wall openings. Remember these key points, strictly follow the standards during construction, and the acceptance can be passed in one go, which is worry free and effortless.

　　當然，濟南電纜橋架驗收，除了這7個核心要點，還有一些細節需要注意，比如橋架的水平度、垂直度，電纜敷設的整齊度等。大家在驗收時，也可以多留意這些細節。如果大家還有其他驗收要點補充，或者對濟南電纜橋架驗收有疑問，歡迎在評論區討論，也可以私信咨詢，幫大家避開驗收誤區，順利通過驗收。

　　Of course, in addition to these 7 core points, there are also some details that need to be paid attention to during the acceptance of cable trays in Jinan, such as the levelness and verticality of the trays, and the neatness of cable laying. During the acceptance process, everyone can also pay more attention to these details. If you have any other additional acceptance points or questions about the acceptance of Jinan cable tray, please feel free to discuss in the comments section or consult privately to help you avoid acceptance misunderstandings and pass the acceptance smoothly.