電路電子常用資料全

1、技術(shù)資料廣州思弘電子科技有限公司2013年4月目錄1、 電纜型號(hào)、載流量及估算口訣、常用元器件標(biāo)識(shí)、導(dǎo)線線號(hào)標(biāo)識(shí)··1 1.1 電纜型號(hào)·····································

2、··················1 1.2 載流量及估算方法·····························

3、3;·················2 1.3 常用元器件標(biāo)識(shí)······························

4、83;··················3 1.4 導(dǎo)線線號(hào)標(biāo)識(shí)·····························

5、83;····················· 3二、圖形符號(hào)及電氣文字代號(hào)··························

6、··········4 2.1 設(shè)備圖形符號(hào)表示·····································

7、3;··········4 管道·······································

8、·························4管接頭························&#

9、183;·····································42.1.3 管路彎頭及三通··········

10、············································42.1.4 閥門····

11、83;·················································

12、83;·········52.1.5 控制元件和測(cè)量用表······································

13、;············7 2.1.6 管路附件····································

14、;························72.1.7 動(dòng)力機(jī)械························

15、····································82.1.8 輔助設(shè)備············&

16、#183;···············································92.1.9 制冷機(jī)組&#

17、183;·················································&#

18、183;·········92.2 介質(zhì)代號(hào)·······································

19、;················10 2.3 電氣技術(shù)中項(xiàng)目種類的字母（AZ）代碼表··························11 2.4 常用電氣設(shè)備文字符號(hào)新舊對(duì)照

20、表·································12 2.5 常用電器元件符號(hào)及與國外對(duì)比·············&#

21、183;·····················143、 常用設(shè)備、材料及常用設(shè)備、材料規(guī)格參數(shù)···················20 常用設(shè)備及其技術(shù)參數(shù)···&

22、#183;·······································203.2 常用材料及其規(guī)格尺寸·······

23、83;···································20四、關(guān)于思弘·············&

24、#183;····································21一、電纜型號(hào)、載流量及估算口訣、導(dǎo)線線號(hào)標(biāo)識(shí)電力電纜型號(hào)各部分的代號(hào)及其含義1. 電纜種類：R 連接用軟電纜，軟結(jié)構(gòu)；K 控制電纜；P信號(hào)電纜。2. 絕緣

25、種類：V聚氯乙稀；X橡膠；Y實(shí)心聚烯烴（聚乙烯）絕緣（YF泡沫聚烯烴絕緣YP泡沫實(shí)心皮聚烯烴絕緣YJ交聯(lián)聚乙烯）；Z代表紙。3. 導(dǎo)體材料：L鋁；T（省略）銅。4.內(nèi)護(hù)層：V聚氯乙稀護(hù)套；Y聚乙烯護(hù)套；L鋁護(hù)套；Q鉛護(hù)套；H橡膠護(hù)套；F氯丁橡膠護(hù)套；A涂塑鋁帶粘接屏蔽聚乙烯護(hù)套  S鋁，鋼雙層金屬帶屏蔽聚乙烯護(hù)套5.特征：D不滴流；F分相；CY充油；P貧油干絕緣；P屏蔽；Z直流。6控制層：0無；2鋼帶；3細(xì)鋼絲；4粗鋼絲；5鋼帶皺紋縱包7.外被層：0無；1纖維外被；2聚氯乙稀護(hù)套；3聚乙烯護(hù)套。8.類型：B平型（扁形）S雙絞型。9.阻燃電纜在代號(hào)前加ZR；耐火電纜在代號(hào)前加

26、NH。示例：KVV22 聚氯乙烯絕緣聚氯乙烯護(hù)套鋼帶鎧裝控制電纜 ZR-KYJVP 交聯(lián)聚氯乙烯絕緣銅絲屏蔽阻燃控制電纜常用電纜載流量對(duì)照表及估算口訣序號(hào)123456789101112131415鋁電纜截面mm²14610162535507095120150180標(biāo)準(zhǔn)倍數(shù)999876543322932426080100150210300300360大于25倍數(shù)安全電流（A）547290135189270270324穿管穿2根倍數(shù)422穿3根倍數(shù)穿4根倍數(shù)3穿2根電流1848648098120168190240240288穿3根電流425670105147210210252穿4根電流3

27、6486090126180180216銅線截面當(dāng)量m²114610162535507095120150口訣一二點(diǎn)五下乘以九，往上減一順號(hào)走²以下電纜9倍,4mm²電纜8倍,6mm²電纜7倍,10mm²電纜6倍,16mm²電纜5倍,25mm²電纜4倍三十五乘三點(diǎn)五，雙雙成組減點(diǎn)五35mm²電纜3.5倍，50、70mm²電纜3倍，95、120電纜2.5倍，150、180電纜2倍條件有變加折算，高溫九折銅升級(jí)溫度大于25，倍數(shù)打九折，銅線降一級(jí)，25mm²鋁電纜相當(dāng)于16mm²銅電纜穿管根數(shù)

28、二三四，八七六折滿截流一根管穿二根電纜倍數(shù)打8折，穿三根電纜倍數(shù)打7折，穿四根電纜倍數(shù)打6折口訣二10下五，100上二10mm²以下電纜按5倍電流算，100mm²以上電纜按2倍電流算25、35，四、三界16、25mm²電纜按4倍電流算，35、50mm²電纜按3倍電流算70、95，兩倍半70、95mm²穿管、溫度，八、九折穿管打8折，高溫打9折裸線加一半銅線升級(jí)算銅線的截面排列順序提升一級(jí)說明：1.三相四線制中的零線截面通常選為相線截面的1/2左右。 2.在單相線路中，零線與相線截面相同。1.3 常用元器件標(biāo)識(shí)（未完待續(xù)）以下為制冷行業(yè)常用元器件

29、標(biāo)識(shí)，其他電路元器件標(biāo)識(shí)可參照本資料P13。BP壓力變送器；BT溫度變送器；BTM風(fēng)機(jī)EH發(fā)熱器件；EHD；EL照明燈；EV空氣調(diào)節(jié)器；E蒸發(fā)器；EC冷凝器FA空氣開關(guān)；FU保險(xiǎn)；FR（馬達(dá)）過載保護(hù)HA聲響指示器；HL指示燈；K繼電器；KA電流繼電器；KG 固態(tài)繼電器；KM交流接觸器；KV電壓繼電器；KT時(shí)間繼電器 M電機(jī)；MC壓縮機(jī)；MCF冷凝器風(fēng)機(jī)；MF風(fēng)機(jī)；PA電流表 PV電壓表 PJ電度表QA自動(dòng)開關(guān)；QF低壓斷路器；QK刀開關(guān)；QM 電動(dòng)機(jī)保護(hù)開關(guān)；QS隔離開關(guān)RT熱電阻；RP電位器SA選擇開關(guān)；SB按扭開關(guān)；SV液壓閥、膨脹閥T電力變壓器；TB開關(guān)電源；TA電流互感器；TV電壓互

30、感器X接線端子排組；XS插座；XP插頭；XT端子排；XE測(cè)試端子 Y電磁閥1.4 線號(hào)原則上導(dǎo)線兩端的標(biāo)識(shí)應(yīng)一致，一般采用數(shù)字或者數(shù)字和文字組合交流系統(tǒng)電源接線L1、L2、L3和N（或A、B、C、N） 有相序要求的如電機(jī)的接線U、V、W和N。接大地保護(hù)線為PE。直流系統(tǒng)電源線：L+、L-，L為電壓值，中間線M、電器箱內(nèi)部保護(hù)接地GND1.斷路器輸入：L1、L2、L3，零線N，輸出：101、201、301，零線012.空氣開關(guān)輸入：101、201、301輸出：102、202、302···一組，104、204、304···一組，以此類推。零線01。 3.交流接觸器輸入：同接線另一端（如空氣開關(guān)）輸出：103、203、303···一組，105,205,305···一組，以此類推。交流接觸器控制信號(hào)線與導(dǎo)線另一端一致4.繼電器：輸出端線號(hào)標(biāo)其功能，如控制加熱絲EH+、照明燈EL之類的。其他線號(hào)與線另一端一致。沒有具體功能定義的標(biāo)401499,6016995.開關(guān)電源、變壓器、互感器輸入端同另一端。開關(guān)電源輸出xxVDC+（801 803 805···），xxVDC-（800 802 804·&