在近幾年的電氣設(shè)計(jì)以及施工現(xiàn)場(chǎng)配合工作中，搞過(guò)一些封閉式母線槽線路的設(shè)計(jì)。下面就由濟(jì)南電纜橋架廠家為我們講講有關(guān)內(nèi)容吧。

In recent years, in the electrical design and construction site cooperation work, I have done some design of enclosed bus duct lines. Now let's talk about the relevant contents from Jinan cable bridge manufacturer.

盡管封閉式母線槽有很多優(yōu)點(diǎn)，但在實(shí)際應(yīng)用中也受一定條件的限制，如用電負(fù)荷類型、分布情況，安裝空間，工程投資額度等等。

Although the enclosed bus duct has many advantages, it is also limited by certain conditions in practical application, such as the type of power load, distribution, installation space, project investment amount and so on.

封閉式母線槽在高層建筑里的應(yīng)用一般建筑都會(huì)為封閉式母線槽設(shè)計(jì)安裝空間(豎井)，每個(gè)樓層均設(shè)一個(gè)或多個(gè)插接開關(guān)箱，再由插接開關(guān)箱向各用電設(shè)備及回路以電纜、電線方式送出電源。為了用電安全，設(shè)計(jì)時(shí)應(yīng)注意以下幾點(diǎn)：

The application of enclosed bus duct in high-rise buildings generally, the construction profession will design the installation space (shaft) for the enclosed bus duct. Each floor is equipped with one or more plug-in switch boxes, and then the plug-in switch boxes send power to all electrical equipment and circuits in the form of cables and wires. In order to use electricity safely, the following points should be paid attention to in the design:

為了保證供電線路的連續(xù)性，應(yīng)考慮采用雙回路形式，并盡可能使兩回路有一定的安全間隔；在選擇封閉式母線槽規(guī)格時(shí)，導(dǎo)體截面應(yīng)盡量大一些，以保證具有足夠的剩余容量；要多設(shè)插接口，但要考慮到操作高度和動(dòng)力饋線路徑，因?yàn)榇怪辈贾玫姆忾]式母線槽插口過(guò)多會(huì)使每層上面的插接箱高度過(guò)高，操作和檢修都不方便；

In order to ensure the continuity of the power supply line, the double circuit form should be considered, and there should be a certain safety interval between the two circuits as far as possible; When selecting the specification of enclosed bus duct, the conductor section should be as large as possible to ensure sufficient residual capacity; More sockets should be set, but the operation height and power feeder path should be considered, because too many sockets of vertically arranged enclosed bus duct will make the height of the socket box on each floor too high, which is inconvenient for operation and maintenance;

由于封閉式母線槽線路阻抗很小，在選擇插接箱內(nèi)斷路器時(shí)應(yīng)選短路分?jǐn)嗄芰εc之相配的型號(hào)；對(duì)于垂直安裝于剪力墻上的封閉式母線槽，可不必向建筑設(shè)計(jì)人員提供載荷數(shù)據(jù)。對(duì)于垂直穿樓板安裝的封閉式母線槽，其載荷數(shù)據(jù)應(yīng)按如下公式計(jì)算：支撐點(diǎn)載荷=0.5×建筑層高×(母線槽總重/母線槽總長(zhǎng))。由于封閉式母線槽結(jié)構(gòu)比電纜橋架重得多，應(yīng)建議設(shè)計(jì)人員考慮吊裝空間。

Because the impedance of enclosed bus duct is very small, the model with matching short-circuit breaking capacity should be selected when selecting the circuit breaker in the plug-in box; For enclosed bus ducts installed vertically on shear walls, it is not necessary to provide load data to building designers. For the enclosed bus duct installed vertically through the floor, the load data shall be calculated according to the following formula: load at the support point =0.5 × Building floor height × (total weight of bus duct / total length of bus duct). Since the enclosed bus duct structure is much heavier than the cable tray, it is suggested that the designer consider the hoisting space.

封閉式母線槽在大型生產(chǎn)、加工車間內(nèi)的應(yīng)用對(duì)于單機(jī)負(fù)荷較小、分布均勻的大型廠房，如紡織企業(yè)的織布車間、針織車間，機(jī)械加工企業(yè)的小件加工車間等，可以利用封閉式母線槽、插接箱的組合進(jìn)行供電。在這種場(chǎng)合封閉式母線槽與常規(guī)供電方式(電纜供電)相比，其優(yōu)越性為：

The application of enclosed bus duct in large-scale production and processing workshops for large-scale workshops with small single machine load and uniform distribution, such as the weaving workshop and knitting workshop of textile enterprises and the small piece processing workshop of mechanical processing enterprises, the combination of enclosed bus duct and plug-in box can be used for power supply. In this case, compared with the conventional power supply mode (cable power supply), the advantages of closed bus duct are:

對(duì)用電負(fù)荷的均衡分布性要求不高，因此對(duì)負(fù)荷很不均衡的情況適應(yīng)性強(qiáng)。即使在封閉式母線槽線路已經(jīng)完成設(shè)計(jì)或已安裝完畢的情況下，也可以根據(jù)新的負(fù)荷變動(dòng)方案進(jìn)行簡(jiǎn)單的調(diào)整，這一點(diǎn)常規(guī)供電方式(電纜供電)是無(wú)法與之相比的。另外，價(jià)格低廉的插接箱取代了昂貴的低壓配電柜及動(dòng)力箱，可以降低投資。同時(shí)插接箱內(nèi)動(dòng)力開關(guān)更接近用電設(shè)備，停、送電操作非常簡(jiǎn)便。

The requirement for the balanced distribution of power load is not high, so it has strong adaptability to the situation that the load is very unbalanced. Even if the enclosed bus duct line has been designed or installed, it can be simply adjusted according to the new load change scheme, which cannot be compared with the conventional power supply mode (cable power supply). In addition, the low-cost plug-in box replaces the expensive low-voltage distribution cabinet and power box, which can reduce the investment. At the same time, the power switch in the plug-in box is closer to the electrical equipment, and the operation of power stop and transmission is very simple.

在設(shè)計(jì)選型時(shí)應(yīng)根據(jù)系統(tǒng)的短路電流值及樣本上的參數(shù)對(duì)所選定型號(hào)進(jìn)行動(dòng)穩(wěn)定和熱穩(wěn)定校驗(yàn)或計(jì)算，詳情就來(lái)我們網(wǎng)站http://www.ymmgjx.net咨詢看看吧。

During design and model selection, the dynamic stability and thermal stability of the selected model should be verified or calculated according to the short-circuit current value of the system and the parameters on the sample. For details, please visit our website http://www.ymmgjx.net Consult and have a look.