電纜橋架的電纜填充率為電纜橋架內(nèi)所有電力電纜的總截面(包括外護(hù)層)與橋架的有效截面之比。下面
山東電纜橋架小編來講講電纜橋架電纜填充率的相關(guān)規(guī)定。
The cable filling rate of the cable tray is the ratio of the total section (including the outer sheath) of all power cables in the cable tray to the effective section of the cable tray. Next, Shandong Cable Bridge will talk about the relevant provisions on the cable tray cable filling rate.
根據(jù)相關(guān)設(shè)計(jì)規(guī)范規(guī)定,“在電纜橋架上可以無間距敷設(shè)電纜,電纜在橋架內(nèi)橫斷面的填充率:電力電纜不應(yīng)大于40%;控制電纜不應(yīng)大于50%。”
According to relevant design specifications, "cables can be laid on the cable tray without spacing. The filling rate of the cable in the cross section of the cable tray: power cable shall not be greater than 40%; control cable shall not be greater than 50%."
在對應(yīng)的條文說明中,明確說明“控制、信號線路等非載流導(dǎo)體,不存在因散熱不良而損壞導(dǎo)線絕緣問題,填充率可增50%”。
In the corresponding article description, it is clearly stated that "the non current carrying conductors such as control and signal lines do not have the problem of damaging the conductor insulation due to poor heat dissipation, and the filling rate can be increased to 50%".
在相關(guān)使用手冊標(biāo)明,橋架內(nèi)的線纜(電力電纜、通信電纜、控制電纜)敷設(shè)方式為平行敷設(shè),其中電力電纜應(yīng)有適當(dāng)?shù)拈g距。
It is indicated in the relevant user manual that the cables (power cables, communication cables, control cables) in the cable tray are laid in parallel, and the power cables shall have proper spacing.
因此,可以認(rèn)為控制電纜、信號電纜在橋架中的截面利用率為50%是指平行敷設(shè)(排整齊)時的數(shù)據(jù)。
Therefore, it can be considered that the section utilization ratio of control cable and signal cable in the bridge is 50%, which refers to the data when they are laid in parallel (in order).

在相關(guān)條文說明中,提供了關(guān)于托盤、梯架的發(fā)展裕量:
In the description of relevant articles, the development margin of tray and ladder is provided:
根據(jù)有關(guān)產(chǎn)品設(shè)計(jì)導(dǎo)則指出,電纜托架內(nèi)要為以后增加電纜或?yàn)檎谠O(shè)計(jì)中的托架進(jìn)行擴(kuò)充留出足夠的備用空位。一般留10%~25%備用空位是合適的。
According to relevant product design guidelines, sufficient spare space shall be reserved in the cable tray for future cable addition or expansion of the tray under design. It is generally appropriate to reserve 10%~25% spare space.
工程實(shí)踐中在布線工程的橋架設(shè)計(jì)時,截面利用率通常都定義為33%(為了計(jì)算方便),經(jīng)過大量工程驗(yàn)證,采用該數(shù)值的橋架完全能夠確保在施工中不會出現(xiàn)橋架上蓋蓋不緊的現(xiàn)象,并還能夠具有一定容量的冗余,即具有增加少量其它弱電線纜的能力。
In engineering practice, when designing the cable tray for wiring engineering, the utilization ratio of the cross section is usually defined as 33% (for the convenience of calculation). After a lot of engineering verification, the cable tray with this value can completely ensure that the cover of the cable tray is not tight during construction, and it can also have redundancy of a certain capacity, that is, it has the ability to add a small number of other weak current cables.
This is the end of the relevant regulations on cable tray and cable filling rate. Please come to our website for any answers http://m.ymmgjx.net Consult!