外文翻譯--淺談高層建筑供配電系統(tǒng)設(shè)計(jì)

1、<p><b>　　中文4323字</b></p><p><b>　　外文資料翻譯</b></p><p>　　Power supply system of high-rise building design   Abstract: with the continuous development of city

2、size, more and more high-rise buildings, therefore high-rise building electrical design to the designers had to face. In this paper, an engineering example, describes the electrical design of high-rise buildings and som

3、e of the more typical issues of universal significance, combined with the actual practice of an engineering solution to the problem described. Key words: high-rise buil</p><p>　　The loop that you want t

4、o auto-tune must be in automatic mode. The loop output must be controlled by the execution of the PID instruction. Auto-tune will fail if the loop is in manual mode.</p><p>　　Before initiating an auto-tune o

5、peration your process must be brought to a stable state which means that the PV has reached setpoint (or for a P type loop, a constant difference between PV and setpoint) and the output is not changing erratically.</p

6、><p>　　Ideally, the loop output value needs to be near the center of the control range when auto-tuning is started. The auto-tune procedure sets up an oscillation in the process by making small step changes in

7、the loop output. If the loop output is close to either extreme of its control range, the step changes introduced in the auto-tune procedure may cause the output value to attempt to exceed the minimum or the maximum range

8、 limit.</p><p>　　If this were to happen, it may result in the generation of an auto-tune error condition, and it will certainly result in the determination of less than near optimal suggested values.</p&g

9、t;<p>　　Auto-Hysteresis and Auto-Deviation</p><p>　　The hysteresis parameter specifies the excursion (plus or minus) from setpoint that the PV (process variable) is allowed to make without causing the

10、 relay controller to change the output. This value is used to minimize the effect of noise in the PV signal to more accurately determine the natural oscillation frequency of the process.</p><p>　　If you sele

11、ct to automatically determine the hysteresis value, the PID Auto-Tuner will enter a hysteresis determination sequence. This sequence involves sampling the process variable for a period of time and then performing a stand

12、ard deviation calculation on the sample results.</p><p>　　In order to have a statistically meaningful sample, a set of at least 100 samples must be acquired. For a loop with a sample time of 200 msec, acquir

13、ing 100 samples takes 20 seconds. For loops with a longer sample time it will take longer. Even though 100 samples can be acquired in less than 20 seconds for loops with sample times less than 200 msec, the hysteresis de

14、termination sequence always acquires samples for at least 20 seconds.</p><p>　　Once all the samples have been acquired, the standard deviation for the sample set is calculated. The hysteresis value is define

15、d to be two times the standard deviation. The calculated hysteresis value is written into the actual hysteresis field (AHYS) of the loop table.</p><p><b>　　Tip</b></p><p>　　While the

16、 auto-hysteresis sequence is in progress, the normal PID calculation is not performed. Therefore, it is imperative that the process be in a stable state prior to initiating an auto-tune sequence. This will yield a better

17、 result for the hysteresis value and it will ensure that the process does not go out of control during the auto-hysteresis determination sequence.</p><p>　　The deviation parameter specifies the desired peak-

18、to-peak swing of the PV around the set point. If you select to automatically determine this value, the desired deviation of the PV is computed by multiplying the hysteresis value by 4.5. The output will be driven proport

19、ionally to induce this magnitude of oscillation in the process during auto-tuning.</p><p>　　Auto-Tune Sequence</p><p>　　The auto-tuning sequence begins after the hysteresis and deviation values

20、have been determined. The tuning process begins when the initial output step is applied to the loop output.</p><p>　　This change in output value should cause a corresponding change in the value of the proces

21、s variable. When the output change drives the PV away from setpoint far enough to exceed the hysteresis boundary a zero-crossing event is detected by the auto-tuner. Upon each zero crossing event the auto-tuner drives th

22、e output in the opposite direction.</p><p>　　The tuner continues to sample the PV and waits for the next zero crossing event. A total of twelve zero-crossings are required to complete the sequence. The magni

23、tude of the observed peak-to-peak PV values (peak error) and the rate at which zero-crossings occur are directly related to the dynamics of the process.</p><p>　　Early in the auto-tuning process, the output

24、step value is proportionally adjusted once to induce subsequent peak-to-peak swings of the PV to more closely match the desired deviation amount. Once the adjustment is made, the new output step amount is written into th

25、e Actual Step Size field (ASTEP) of the loop table.</p><p>　　The auto-tuning sequence will be terminated with an error, if the time between zero crossings exceeds the zero crossing watchdog interval time. Th

26、e default value for the zero crossing watchdog interval time is two hours.</p><p>　　Figure 1 shows the output and process variable behaviors during an auto-tuning sequence on a direct acting loop. The PID Tu

27、ning Control Panel was used to initiate and monitor the tuning sequence.</p><p>　　Notice how the auto-tuner switches the output to cause the process (as evidenced by the PV value) to undergo small oscillatio

28、ns. The frequency and the amplitude of the PV oscillations are indicative of the process gain and natural frequency. 7 public area distribution box set Taking into account the future needs of the business re-dec

29、oration of public areas must be reserved for power. Here the design needs to consider the following points: </p><p>　?、?question of how much reserve power, lighting and electricity, which according to GB5003

30、4-2004 "Architectural Lighting Design Standards" table of Article 6.1.3 and 6.1.8, commercial building lighting power density value, high-end supermarkets, business offices as 20W/m2, under the "decorative

31、 lighting included 50% of the total lighting power density calculation" requirements, using the reserved standard 40W/m2. </p><p>　　② In order to facilitate the decoration in each partition set fire lig

32、hting in public areas and emergency lighting distribution box distribution box, in order to identify the electrical power distribution decoration cut-off point. ③ the staircase, storage rooms and other parts of the

33、decoration does not need to do, set the power distribution circuit or a separate distribution box, try not to be reserved from the public area of ??electricity distribution board fed hardcover out. ④ contr</p>

34、<p>　　① All the distribution number to be simple and clear, not too box and line numbers are not repeated. </p><p>　?、?number to simple and clear, not too long.</p><p>　?、?distinction bet

35、ween nature and type of load. </p><p>　?、?law was easy to find, make viewer at a glance. Based on the above requirements and on the ground, fire district and the underground construction industry form the di

36、fferent conditions, using two slightly different ways. Essential for the underground garage, uses a single comparison, also relatively fire district neat, according to fire district number, such as AL-BL-1 / 1, AP and AP

37、E, the meaning of the letters and numbers: AL on behalf of lighting distribution (AP on behalf of Power distribut</p><p>　　淺談高層建筑供配電系統(tǒng)設(shè)計(jì) </p><p>　　摘要：隨著城市規(guī)模的不斷發(fā)展，高層建筑越來(lái)越多，因此，高層建筑電氣設(shè)計(jì)就成為設(shè)計(jì)者不得不面對(duì)的

38、問(wèn)題。本文結(jié)合工程實(shí)例，介紹了高層建筑電氣設(shè)計(jì)中一些比較典型且具有普遍意義的問(wèn)題，結(jié)合某工程的實(shí)際做法闡述了問(wèn)題的解決方法。</p><p>　　關(guān)鍵詞：高層建筑；電氣設(shè)計(jì)；配電；負(fù)荷計(jì)算</p><p><b>　　1工程概況</b></p><p>　　本項(xiàng)目商業(yè)綜合大樓，總建筑面積為405570m2，地上建筑面積272330m2，地下建筑

39、面積133240m2,主體高度99m。項(xiàng)目組成為：辦公樓兩座，建筑面積為70800m2，28層，標(biāo)準(zhǔn)層高為3.2m。</p><p><b>　　2 負(fù)荷計(jì)算</b></p><p>　　1）負(fù)荷特點(diǎn):用電負(fù)荷大,遠(yuǎn)大于《全國(guó)民用建筑工程設(shè)計(jì)術(shù)措施》中大120W/m2的指標(biāo),尤其是餐飲的用電負(fù)荷更大，而且不同類型、不同飲食文化背景的餐飲差別也很大。</p>

40、<p>　　2）負(fù)荷的不確定性大，因?yàn)樯虡I(yè)地產(chǎn)往往根據(jù)市場(chǎng)租的需求，不斷調(diào)整商鋪的性質(zhì)，使得負(fù)荷在動(dòng)態(tài)變化之中。</p><p>　　3）目前的規(guī)范和技術(shù)措施沒(méi)有對(duì)商業(yè)項(xiàng)目中不同類別商鋪的參數(shù)指進(jìn)行細(xì)化，工程設(shè)計(jì)中的負(fù)荷計(jì)算缺少據(jù)，大多數(shù)情況只能靠設(shè)計(jì)人員憑借以往工程經(jīng)驗(yàn)進(jìn)行計(jì)算。</p><p>　　負(fù)荷參數(shù)的選擇：針對(duì)以上遇到的問(wèn)題，進(jìn)行負(fù)荷計(jì)算時(shí)，首先與開(kāi)發(fā)商銷售部門(mén)進(jìn)

41、行良好的溝通，確定各層的業(yè)態(tài)形式商鋪面積和性質(zhì)，這是電氣負(fù)荷計(jì)算的基礎(chǔ)依據(jù)；其次確定商鋪內(nèi)單位面積參數(shù)指標(biāo)也很重要且復(fù)雜，因?yàn)橐?guī)范中沒(méi)有明確的指標(biāo)可以參考；而且不同城市間的經(jīng)濟(jì)發(fā)展水平不均衡，用電指標(biāo)也不同；便在同一城市不同區(qū)域的消費(fèi)群體也有差異。</p><p>　　3）需要系數(shù)的選擇：參數(shù)確定后，需要進(jìn)行負(fù)荷計(jì)算。一般采用需要系數(shù)法，計(jì)算過(guò)程不再贅述。需要探討的是需要系數(shù)的選擇，這在現(xiàn)行規(guī)范、手冊(cè)及《統(tǒng)一技術(shù)

42、措施》中也沒(méi)有明確的要求，根據(jù)多年的設(shè)計(jì)體會(huì)認(rèn)為，在配電最末端商鋪內(nèi)戶箱或?qū)优潆娤溆?jì)算時(shí)Kx一般取1，在各回路干線計(jì)算時(shí)取0.7～0.8，在變電所各配電變壓器計(jì)算時(shí)取0.4～0.6。</p><p><b>　　3變電所設(shè)置</b></p><p>　　根據(jù)負(fù)荷計(jì)算結(jié)果，本工程的變壓器總安裝容量為43400Kv.A，經(jīng)與供電公司反復(fù)協(xié)商，分別在本工程的北、中和南三段設(shè)

43、置3個(gè)變電所為三段建筑供電，1#變電所設(shè)6臺(tái)2500Kv.A變壓器,承擔(dān)北段供電；2#變電所設(shè)4臺(tái)1600Kv.A變壓器,加6臺(tái)2000Kv.A變壓器,承擔(dān)中段的供電，另外還有5臺(tái)10Kv.A高壓冷水機(jī)組（合計(jì)4000Kv.A）；3#變電所設(shè)2臺(tái)2000Kv.A加2臺(tái)1000Kv.A變壓器，承擔(dān)南段A、B兩座辦公樓供電。本工程配置兩處10Kv電源引入點(diǎn)，每處為兩路10Kv線路,根據(jù)供電公司對(duì)10Kv電源容量的規(guī)定：每路最大負(fù)荷為1100

44、0Kv.A左右，兩路即為22000Kv.A，設(shè)計(jì)1#、3#變電所合用一處10Kv,電源進(jìn)線，總?cè)萘繛?1000Kv.A；2#變電所內(nèi)變壓器和10Kv,冷水機(jī)組共用一處10Kv電源進(jìn)線，總?cè)萘繛?2400Kv.A。在變電所平面布置的設(shè)計(jì)中，除了滿足規(guī)范要求以外，還需要考慮高壓柜、變壓器和低壓柜按供電順序布置，尤其是低壓配電柜饋出電纜的走向順暢，值班人員巡視方便等問(wèn)題如不認(rèn)真考慮，會(huì)造成施工時(shí)電纜交叉多、繞遠(yuǎn)路、浪費(fèi)建筑面積以及巡視不方便等

45、問(wèn)題</p><p>　　4較小消防負(fù)荷的供配電</p><p>　　在大型商業(yè)項(xiàng)目設(shè)計(jì)中經(jīng)常會(huì)遇到消防用電設(shè)備負(fù)荷較小且分布較分散，若均由變電所饋出，會(huì)使得變電所低壓柜饋出很多小電流回路，對(duì)斷路器分?jǐn)嗄芰蛯?dǎo)體的動(dòng)、熱穩(wěn)定帶來(lái)一定的影響。根據(jù)GB50045-1995《高層民用建筑設(shè)計(jì)防火規(guī)范》規(guī)定“消防用電設(shè)備應(yīng)采用專用的供電回路，其配電設(shè)備應(yīng)設(shè)有明顯標(biāo)志”。對(duì)供電回路的條文解釋系指“從

46、低壓總配電室（包括分配電室）至最末一級(jí)配電箱，與一般配電線路均應(yīng)嚴(yán)格分開(kāi)”。在本設(shè)計(jì)中，采用了增加一級(jí)配電的方法，即從變電所不同母線段上分別饋出一條消防專用回路，在適當(dāng)位置設(shè)置兩臺(tái)配電柜，再由此配電柜放射式配至末端雙電源互投箱，這樣既滿足了規(guī)范對(duì)專用供電回路的要求，又避免在變電所級(jí)饋出許多小電流回路。</p><p>　　5斷路器及導(dǎo)體的選擇</p><p>　　由于商業(yè)地產(chǎn)項(xiàng)目房間用途的

47、不確定性，在選擇斷路器和導(dǎo)體時(shí)必須考慮一定的裕量以滿足調(diào)整造成的負(fù)荷變化。根據(jù)這一特點(diǎn)，在設(shè)計(jì)中較多地使用了插接母線供電，既可以滿足大載流量的要求，又使供配電靈活性加大，在每層豎井中均預(yù)留備用插接箱，以便在變化時(shí)，可根據(jù)上下層負(fù)荷的變化，進(jìn)行調(diào)整。例如：某豎井一段母線負(fù)責(zé)1～3層供電，當(dāng)1層由于變化容量增大，而3層容量減小時(shí)，就可使用1層的備用插接箱把3層富裕的容量配給1層使用。在變電所這級(jí)配電中，選擇斷路器時(shí)要選整定值可調(diào)整的斷路器，

48、以便在末端負(fù)荷變化時(shí)調(diào)整整定值；在母線和互感器的選擇上一般按斷路器框架值來(lái)選。例如：某段干線設(shè)備容量530Kv，Kx取0.7，計(jì)算電流為704A，選擇斷路器框架值為1000A，整定值為800A；電流互感器為1000/50；母線載流量為1000A，此路最大可滿足1000A電流的負(fù)荷使用要求，即便有調(diào)整，配電開(kāi)關(guān)及線路也可不必作大的變動(dòng)。</p><p><b>　　6層配電箱的設(shè)置</b>&l

49、t;/p><p>　　根據(jù)各層防火分區(qū)的劃分，分別在各層編號(hào)為A～K豎井內(nèi)設(shè)置層照明配電箱為各商鋪供電,各商鋪的供電采用一對(duì)一放射式供電。需要指出的是由于各層的業(yè)態(tài)比較復(fù)雜各層的防火分區(qū)上、下層不對(duì)應(yīng)，使得有的豎井在負(fù)責(zé)本防火分區(qū)供電的同時(shí)，還要負(fù)責(zé)相鄰的防火分區(qū)的供電。在設(shè)計(jì)時(shí)，采用了就近原則，同時(shí)也考慮到整條干線負(fù)擔(dān)的負(fù)荷情況，盡量使各個(gè)豎井內(nèi)負(fù)荷比較平衡。先決條件</p><p>　　您

50、要進(jìn)行自整定的回路必須處于自動(dòng)模式?；芈返妮敵霰仨氂蒔ID指令來(lái)控制。如果回路處于手動(dòng)模式，自整定會(huì)失敗。</p><p>　　在啟動(dòng)自整定之前，您的控制過(guò)程應(yīng)該達(dá)到一種穩(wěn)定狀態(tài)。這種穩(wěn)定狀態(tài)是指過(guò)程變量已經(jīng)達(dá)到設(shè)定值(或者對(duì)于P調(diào)節(jié)來(lái)說(shuō)，過(guò)程變量與設(shè)定值之間的差值恒定)并且輸出不會(huì)不規(guī)律地變化。</p><p>　　理想狀態(tài)下，當(dāng)自整定啟動(dòng)時(shí)，回路的輸出值應(yīng)該在控制范圍中心附近。自整定過(guò)

51、程在回路的輸出中加入一些小的階躍變化，使得控制過(guò)程產(chǎn)生振蕩。如果回路的輸出值沒(méi)有處于控制范圍中心附近，自整定的這種階躍變化會(huì)導(dǎo)致輸出超限。</p><p>　　如果這種情況發(fā)生，會(huì)使自整定發(fā)生錯(cuò)誤，當(dāng)然也會(huì)使推薦值并非最優(yōu)化。</p><p><b>　　自滯后和自偏移</b></p><p>　　滯后參數(shù)給出一個(gè)相對(duì)于設(shè)定值的正負(fù)偏移量，過(guò)程

52、變量在此偏移量范圍內(nèi)時(shí)，不會(huì)導(dǎo)致控制器改變輸出值。這個(gè)值用于減小過(guò)程變量中噪聲的影響，從而更精確地計(jì)算出過(guò)程自然振動(dòng)頻率。</p><p>　　如果您選用自動(dòng)計(jì)算滯后值，PID自整定會(huì)生成一個(gè)滯后運(yùn)算隊(duì)列。該隊(duì)列包含一段時(shí)間內(nèi)的過(guò)程變量采樣值，然后根據(jù)采樣結(jié)果計(jì)算出標(biāo)準(zhǔn)偏移。</p><p>　　為了得到具有統(tǒng)計(jì)意義的采樣數(shù)據(jù)，至少要有100個(gè)采樣值。如果回路的采樣周期為200 ms，10

53、0個(gè)采樣值就需要20秒時(shí)間?；芈凡蓸又芷诟L(zhǎng)會(huì)需要更多的時(shí)間。即使您使用的回路采樣周期小于20ms，從而使得采樣100次用不了20秒時(shí)間，滯后運(yùn)算隊(duì)列仍然需要至少20秒采樣時(shí)間。</p><p>　　當(dāng)?shù)玫阶銐虻牟蓸又狄院螅涂梢运愠鰳颖镜臉?biāo)準(zhǔn)偏移。滯后值等于兩倍的標(biāo)準(zhǔn)偏移。計(jì)算后得到的滯后值被寫(xiě)入回路表中的實(shí)際滯后(AHYS)域中。</p><p><b>　　提示</b

54、></p><p>　　在自滯后計(jì)算過(guò)程中，正常的PID運(yùn)算會(huì)停止。因此，在啟動(dòng)自整定之前，控制過(guò)程應(yīng)處于穩(wěn)定狀態(tài)。這樣可以使滯后值的計(jì)算收到好的效果，同時(shí)也可以保證在自滯后運(yùn)算過(guò)程中，控制過(guò)程不會(huì)失控。</p><p>　　偏移參數(shù)是指希望得到的過(guò)程變量相對(duì)于設(shè)定值的峰--峰值幅度。如果您選擇自動(dòng)計(jì)算該值，它將是滯后值的4.5倍。在自整定過(guò)程中，會(huì)適當(dāng)?shù)卣{(diào)節(jié)輸出，使控制過(guò)程中的振動(dòng)

55、在這一范圍內(nèi)。</p><p><b>　　自整定序列</b></p><p>　　自整定序列在得到滯后值和偏移值之后開(kāi)始執(zhí)行。當(dāng)初始輸出階躍實(shí)際應(yīng)用到回路的輸出時(shí)，整定過(guò)程就開(kāi)始了。</p><p>　　輸出值的這一變化會(huì)導(dǎo)致過(guò)程變量值產(chǎn)生相應(yīng)的變化。當(dāng)輸出的變化使過(guò)程變量遠(yuǎn)離設(shè)定值以致于超出滯后區(qū)范圍時(shí)，自整定將檢測(cè)到一個(gè)零相交事件。在每次

56、零相交事件發(fā)生時(shí)，自整定將反方向改變輸出。</p><p>　　自整定繼續(xù)采樣過(guò)程變量值，等待下一次零相交事件。要完成整個(gè)序列，需要12次零相交事件。過(guò)程變量的峰--峰值和零相交事件的產(chǎn)生速度都與控制過(guò)程的動(dòng)態(tài)特性直接相關(guān)。</p><p>　　在自整定過(guò)程一開(kāi)始，會(huì)適當(dāng)?shù)卣{(diào)節(jié)輸出階躍值，促使過(guò)程變量的峰--峰值更接近想要得到的偏移值。一旦有調(diào)節(jié)產(chǎn)生，新的輸出階躍值將被寫(xiě)入回路表的實(shí)際輸出

57、階躍幅度(ASTEP)域中。</p><p>　　如果兩次零相交時(shí)間的時(shí)間間隔超過(guò)了零相交看門(mén)狗的間隔時(shí)間，自整定序列將被終止。零相交看門(mén)狗的間隔時(shí)間缺省值為兩小時(shí)。</p><p>　　注意自整定是如何改變輸出，來(lái)使控制過(guò)程(用過(guò)程變量值表示)經(jīng)受小幅振動(dòng)的。過(guò)程變量的振動(dòng)幅度和頻率代表著控制過(guò)程增益和自然頻率。</p><p>　　7公共區(qū)域配電箱的設(shè)置<

58、/p><p>　　考慮到商業(yè)的公共區(qū)域?qū)?lái)需要二次裝修，必須預(yù)留電源。此處的設(shè)計(jì)需要考慮以下幾點(diǎn)：</p><p>　?、匐娏款A(yù)留多少的問(wèn)題，其中照明用電可根據(jù)GB50034-2004</p><p>　　《建筑照明設(shè)計(jì)標(biāo)準(zhǔn)》表6.1.3及其6.1.8條，商業(yè)建筑照明功率密度值計(jì)算，高檔超市營(yíng)業(yè)廳為20W/m2，根據(jù)“裝飾性燈具總功率50%計(jì)入照明密度計(jì)算值”的規(guī)定，采

59、用的預(yù)留標(biāo)準(zhǔn)為40W/m2。</p><p>　?、跒榉奖阊b修設(shè)計(jì)，在每個(gè)防火分區(qū)內(nèi)設(shè)置了公共區(qū)域照明配電箱和應(yīng)急照明配電箱，以便明確裝修設(shè)計(jì)的電氣配電分界點(diǎn)。</p><p>　?、蹖翘蓍g、儲(chǔ)藏間等不需要做裝修的部位，單獨(dú)設(shè)置配電回路或配電箱，盡量不從公共區(qū)域預(yù)留精裝用電的配電箱內(nèi)饋出。</p><p>　?、芄矃^(qū)域照明的控制，大部分采用兩種方式，即C—BUS

60、系統(tǒng)或BA系統(tǒng)控制，利用C—BUS的優(yōu)點(diǎn)是控制比較靈活，可按每一路饋出控制，也可調(diào)光控制；缺點(diǎn)是造價(jià)較高。利用BA系統(tǒng)控制優(yōu)點(diǎn)是造價(jià)低，控制簡(jiǎn)單；缺點(diǎn)是由于交流接觸器為三相，控制時(shí)可能會(huì)三路同時(shí)開(kāi)或者同時(shí)關(guān)，在裝修設(shè)計(jì)時(shí)需將各接觸器饋出回路岔開(kāi)供電，避免造成故障時(shí)大面積停電。</p><p><b>　　8戶配電箱的設(shè)計(jì)</b></p><p>　　在商業(yè)地產(chǎn)設(shè)計(jì)中，

61、往往只為商鋪設(shè)計(jì)一個(gè)電表箱，而出線回路由用戶根據(jù)自己的需要進(jìn)行二次設(shè)計(jì)，但是商鋪內(nèi)風(fēng)機(jī)盤(pán)管的供電很難解決，無(wú)法進(jìn)行空調(diào)系統(tǒng)的整體調(diào)試。本工程的做法是在電表箱內(nèi)增加一個(gè)斷路器為風(fēng)機(jī)盤(pán)管供電，另一路為用戶二次設(shè)計(jì)時(shí)使用?！　?</p><p>　　9配電柜/箱與配電回路的編號(hào)</p><p>　　大型項(xiàng)目往往低壓配電柜/箱很多，低壓饋出回路就更多，往往會(huì)出現(xiàn)柜/箱編號(hào)

62、及線路編號(hào)重復(fù)的問(wèn)題，造成在設(shè)計(jì)圖中查找及將來(lái)維護(hù)檢修的困難。本工程有3個(gè)10Kv變電所，20臺(tái)變壓器，上百臺(tái)低壓饋出柜，饋出回路更多。按照國(guó)際電工委員會(huì)（IEC）及中國(guó)國(guó)標(biāo)的要求：</p><p>　?、偎械呐潆娋幪?hào)要簡(jiǎn)單明了，不能太箱和線路編號(hào)不重復(fù)。</p><p>　　②編號(hào)要簡(jiǎn)單明了，不能太長(zhǎng)。</p><p>　?、蹍^(qū)分負(fù)荷性質(zhì)和類型。</p&g

63、t;<p>　?、芤?guī)律明顯便于查找，能使看圖者一目了然。根據(jù)以上要求及地上、地下建筑防火分區(qū)和業(yè)態(tài)形式的不同情況，采用了兩種略有差別的方式。地下部分基本為車庫(kù)，用途比較單一，防火分區(qū)也比較整齊，按防火分區(qū)編號(hào)，如AL—BL—1/1、AP與APE等各字母及數(shù)字含義：AL代表照明配電箱（AP代表動(dòng)力配電箱，APE代表應(yīng)急動(dòng)力配電箱）；BI代表地下一層；1/1代表I防火分區(qū)1號(hào)箱。地上部分比較復(fù)雜，防火分區(qū)比較多，且上、下層防火

64、分區(qū)不對(duì)應(yīng)，按豎井編號(hào)較好，如AL—1—A1、AP和APE等字母及數(shù)字含義：1代表一層；A1代表A號(hào)豎井饋出的1號(hào)配電箱。低壓饋出回路的編號(hào)采用了如：W3—6—AL—1—A1，W3—6)表示此回路由3號(hào)變壓器所供電的6號(hào)配電柜饋出，AL—1—A1表示本回路所接的第一個(gè)配電箱為AL—1—A1等，以此類推。</p><p><b>　　10結(jié)束語(yǔ)</b></p><p>