济南电缆桥架｜验收别马虎，这7个核心要点记牢不返工

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

　　搞电气工程、济南本地项目施工的兄弟们，想必都清楚一个道理：电缆桥架施工，三分靠安装，七分靠验收。很多济南的施工队，辛辛苦苦把桥架装完，结果验收时因为一些小细节没做到位，被要求返工整改，既耽误工期，又增加成本，得不偿失。经常有兄弟问我：“济南电缆桥架验收，到底有哪些要点？”今天就实打实地跟大伙唠唠，这7个核心验收要点，每一个都不能马虎，记牢了，验收一次性通过，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.

　　先跟大家说句实在话，济南电缆桥架的验收，不是走形式，每一个要点都关系到后期电缆的运行和工程质量，不管是市政项目、工业厂房，还是小区、写字楼的电气工程，验收标准都离不开这几点。尤其是现在济南对电气工程质量要求越来越严格，验收时一点疏漏，都可能导致整改，甚影响整个项目的交付，所以大家一定要重视起来。

　　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.

　　个验收要点，也是很多施工队容易忽略的——桥架连接部位的跨接线。大家记住，桥架连接的地方，必须安装截面积不小于4平方毫米的跨接线。这可不是多余的要求，跨接线的作用是保证桥架的电气连续性，避免出现静电积聚，保护电缆，尤其是在济南一些有防爆、防静电要求的工业项目中，这一点更是重中之重，验收时一定会检查，少了或者截面积不够，肯定过不了。

　　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.

　　第二个要点，桥架跟支架横杆的固定方式。很多兄弟图省事，会用焊接或者铁丝固定，这是不行的。验收时明确要求，桥架跟支架横杆必须用螺栓固定，而且螺栓要拧紧、固定牢固，不能出现松动。这样做是为了保证桥架的稳定性，避免后期使用过程中，因为震动导致桥架移位、脱落，损坏电缆。

　　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.

　　第三个要点，伸缩结和补偿器的设置。桥架直段安装长度超过30米时，必须设置伸缩结；如果桥架跨越变形缝（比如墙面、地面的伸缩缝），还要额外增加补偿器。济南的气候四季分明，温差较大，桥架会随着温度变化热胀冷缩，伸缩结和补偿器能有效缓解这种变形带来的应力，避免桥架开裂、损坏，验收时会核查安装距离和数量，少装、漏装都要整改。

　　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.

　　第四个要点，吊杆的直径要求。如果桥架用吊杆固定，吊杆的直径不能小于8毫米。很多施工队为了节省成本，会用细一点的吊杆，看似能固定住，实则承载力不足，后期桥架加上电缆的重量，很容易导致吊杆弯曲、断裂，引发隐患。验收时，会实际测量吊杆直径，达不到8毫米，必须全部更换。

　　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.

　　第五个要点，支、吊架的安装距离。桥架支、吊架的距离，不能大于2米，也就是说，每2米之内，必须有一个支、吊架来支撑桥架。如果距离太远，桥架中间会下垂、变形，不仅影响美观，还会影响电缆的敷设和运行。尤其是济南一些跨度较大的车间、厂房，更要严格按照这个标准来，验收时会逐段核查，超标就必须增加支、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.

　　第六个要点，弯头处的支架设置。桥架弯头处以弯头60公分范围内，必须设置支架。弯头部位是桥架的受力薄弱点，而且敷设电缆时，弯头处会有额外的拉力和压力，设置支架能有效固定弯头，避免弯头变形、松动，同时也能保护电缆，防止电缆在弯头处被磨损。很多施工队会漏装这个支架，验收时很容易被发现，一定要记牢。

　　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.

　　第七个要点，盖板和防火封堵。桥架穿完电缆后，必须及时盖上盖板，不能裸露电缆；而且桥架穿墙的洞口，要做好防火封堵。盖上盖板是为了保护电缆，防止灰尘、杂物进入，同时也能起到一定的防护作用；防火封堵则是为了防范火灾隐患，避免火灾时火势通过桥架洞口蔓延，这也是济南消防验收和电气验收的，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.

　　在这里跟济南的施工兄弟们提个醒，电缆桥架验收，没有“差不多”，只有“合格”和“不合格”。以上这7个要点，都是验收时的必查项，哪怕忽略一个小细节，都可能导致返工。很多施工队之所以验收不过关，不是技术不行，而是太粗心，觉得一些小细节无关紧要，反而耽误了工期、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.

　　总结一下，济南电缆桥架验收，核心就是这7个要点：连接部位跨接线≥4平方毫米，桥架与支架用螺栓固定，直段超30米设伸缩结、跨变形缝加补偿器，吊杆直径≥8毫米，支吊架距离≤2米，弯头60公分内设支架，穿缆后盖盖板、穿墙洞口做防火封堵。记牢这些要点，施工时严格按照标准来，验收就能一次性通过，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.

　　当然，济南电缆桥架验收，除了这7个核心要点，还有一些细节需要注意，比如桥架的水平度、垂直度，电缆敷设的整齐度等。大家在验收时，也可以多留意这些细节。如果大家还有其他验收要点补充，或者对济南电缆桥架验收有疑问，欢迎在评论区讨论，也可以私信咨询，帮大家避开验收误区，顺利通过验收。

　　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.