電線(xian)埋(mai)墻必需穿(chuan)線(xian)管(guan),一般(ban)(ban)可(ke)選(xuan)PE穿(chuan)線(xian)管(guan):價格實(shi)惠,可(ke)彎曲(qu),絕緣性能好。其實(shi)一般(ban)(ban)家(jia)庭選(xuan)擇PVC穿(chuan)線(xian)管(guan)/PE穿(chuan)線(xian)管(guan)非常(chang)不錯了,只是(shi)要選(xuan)擇結實(shi)的,簡單方法(fa)是(shi)用腳踩一下,不會被踩癟的是(shi)好的。提醒一下:無(wu)論使用哪種穿(chuan)線(xian)管(guan),電線(xian)在管(guan)內都不能有接頭。
電路(lu)改(gai)造應避免死(si)線:再好的電路(lu)質量,也難保以后(hou)會(hui)出現故障(zhang),需要(yao)(yao)更(geng)換線路(lu),這(zhe)個時(shi)候,埋墻的電線能夠(gou)方便的拽(zhuai)出更(geng)換顯(xian)得非(fei)常重(zhong)要(yao)(yao),所以在電改(gai)施(shi)工中要(yao)(yao)避免造成日(ri)后(hou)無法拽(zhuai)動的“死(si)線”:
1、當然重要的是要使(shi)用(yong)穿線管埋線。
2、電路走(zou)線(xian)應該把握(wo)“兩端間近距離(li)走(zou)線(xian)”,不能無故(gu)繞線(xian),這樣不但(dan)會(hui)造(zao)成死線(xian),還會(hui)增大(da)電改投入。
3、一根穿(chuan)(chuan)線(xian)(xian)管中不要穿(chuan)(chuan)太多線(xian)(xian),穿(chuan)(chuan)線(xian)(xian)后都應該拽(zhuai)(zhuai)一下,看看是否(fou)可以(yi)輕松(song)拽(zhuai)(zhuai)動。
4、線路有接頭必需在接頭處留(liu)暗盒扣面板(ban),日后更換和維(wei)修(xiu)都方(fang)便。
5、管(guan)徑(jing)小于(yu)25的(de)PVC穿線管(guan)拐(guai)彎(wan)應(ying)用彎(wan)管(guan)器,不能(neng)加彎(wan)頭(tou)拐(guai)彎(wan),直角死彎(wan)往往會造成死線。
PE100管材規格 | ||||||||
公稱 外徑 dn mm | SDR41 | SDR33 | SDR26 | SDR21 | SDR17 | SDR13.6 | SDR11 | SDR9 |
公稱壓力PN,Mpa | ||||||||
0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.25 | 1.6 | 2 | |
公稱 | 公稱 | 公稱 | 公稱 | 公稱 | 公稱 | 公稱 | 公稱 | |
壁厚 | 壁厚 | 壁厚 | 壁厚 | 壁厚 | 壁厚 | 壁厚 | 壁厚 | |
16 | 2.3 | |||||||
20 | 2.3 | 2.3 | ||||||
25 | 2.3 | 2.3 | 3 | |||||
32 | 2.3 | 2.4 | 3 | 3.6 | ||||
40 | 2.3 | 2.4 | 3 | 3.7 | 4.5 | |||
50 | 2.3 | 2.4 | 3 | 3.7 | 4.6 | 5.6 | ||
63 | 2.5 | 3 | 3.8 | 4.7 | 5.8 | 7.1 | ||
75 | 2.9 | 3.6 | 4.5 | 5.6 | 6.8 | 8.4 | ||
90 | 3.5 | 4.3 | 5.4 | 6.7 | 8.2 | 10.1 | ||
110 | 4.2 | 5.3 | 6.6 | 8.1 | 10 | 12.3 | ||
125 | 4.8 | 6 | 7.4 | 9.2 | 11.4 | 14 | ||
140 | 5.4 | 6.7 | 8.3 | 10.3 | 12.7 | 15.7 | ||
160 | 6.2 | 7.7 | 9.5 | 11.8 | 14.6 | 17.9 | ||
180 | 6.9 | 8.6 | 10.7 | 13.3 | 16.4 | 20.1 | ||
200 | 7.7 | 9.6 | 11.9 | 14.7 | 18.2 | 22.4 | ||
225 | 8.6 | 10.8 | 13.4 | 16.6 | 20.5 | 25.2 | ||
250 | 9.6 | 11.9 | 14.8 | 18.4 | 22.7 | 27.9 | ||
280 | 10.7 | 13.4 | 16.6 | 20.6 | 25.4 | 31.3 | ||
315 | 7.7 | 9.7 | 12.1 | 15 | 18.7 | 23.2 | 28.6 | 35.2 |
355 | 8.7 | 10.9 | 13.6 | 16.9 | 21.1 | 26.1 | 32.2 | 39.7 |
400 | 9.8 | 12.3 | 15.3 | 19.1 | 23.7 | 29.4 | 36.3 | 44.7 |
450 | 11 | 13.8 | 17.2 | 21.5 | 26.7 | 33.1 | 40.9 | 50.3 |
500 | 12.3 | 15.3 | 19.1 | 23.9 | 29.7 | 36.8 | 45.4 | 55.8 |
560 | 13.7 | 17.2 | 21.4 | 26.7 | 33.2 | 41.2 | 50.8 | 62.5 |
630 | 15.4 | 10.3 | 24.1 | 30 | 37.4 | 46.3 | 57.2 | 70.3 |
710 | 17.4 | 21.8 | 27.2 | 33.9 | 42.1 | 52.2 | 64.5 | 79.3 |
800 | 19.6 | 24.5 | 30.6 | 38.1 | 47.4 | 58.8 | 72.6 | 89.3 |
900 | 22 | 27.6 | 34.4 | 42.9 | 53.3 | 66.2 | 81.7 | |
1000 | 24.5 | 30.6 | 38.2 | 47.4 | 59.3 | 72.5 | 90.2 | |
1200 | 29.4 | 36.7 | 45.9 | 57.2 | 67.9 | 88.2 | ||
1400 | 34.3 | 42.9 | 53.5 | 66.7 | 82.4 | 102.9 | ||
1600 | 39.2 | 49 | 61.2 | 76.2 | 94.1 | 117.6 | ||
1800 | 43.8 | 54.5 | 69.1 | 85.7 | 105.9 | |||
2000 | 48.8 | 60.6 | 76.9 | 95.2 | 117.6 | |||
2250 | 55 | 70 | 86 | 107.2 | ||||
2500 | 61.2 | 77.7 | 95.6 | 119.1 |