今日去荃灣問過AEI 2.5mm $209/100m
如果MCB去牆插2.5mm 打双行or單行2.5mm 好
yan5137 發表於 2010-2-1 19:20 http://www.post76.com/discuss/images/common/back.gif
Ching用4mm行單.
用三上電又如何呀
poyan 發表於 2010-2-1 20:13 http://www.post76.com/discuss/images/common/back.gif
我屋企得單相,同埋我果部係單相AV AMP{:6_194:}
今日去荃灣問過AEI 2.5mm $209/100m
如果MCB去牆插2.5mm 打双行or單行2.5mm 好
yan5137 發表於 2010-2-1 19:20 http://www.post76.com/discuss/images/common/back.gif
To avoid crosstalk issues, 單支銅心 will be much better than 7 支銅心.
Crosstalk:
In electronics, the term crosstalk (XT) refers to any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel. Crosstalk is usually caused by undesired capacitive, inductive, or conductive coupling from one circuit, part of a circuit, or channel, to another.
In telecommunication or telephony, crosstalk is often distinguishable as pieces of speech or signaling tones leaking from other people's connections. If the connection is analog, twisted pair cabling can often be used to reduce the effects of crosstalk. Alternatively, the signals can be converted to digital form, which is much less susceptible to crosstalk.
In wireless communication, crosstalk is often denoted co-channel interference, and is related to adjacent-channel interference.
http://en.wikipedia.org/wiki/Crosstalk_%28electronics%29
Ching用4mm行單.
yazhou 發表於 2010-2-2 00:43 http://www.post76.com/discuss/images/common/back.gif
4mm一卷要$400,三卷要$1200
2.5mm一卷要$209三卷要$618,平一半
同埋每一卷都係用10m到,因此好想知道個分別口係遑度
4mm一卷要$400,三卷要$1200
2.5mm一卷要$209三卷要$618,平一半
同埋每一卷都係用10m到,因此好想知道個分別口係遑度
yan5137 發表於 2010-2-2 01:02 http://www.post76.com/discuss/images/common/back.gif
2.5mm is 單支銅
4mm is 7 支銅
To avoid crosstalk issues, 單支銅心 will be much better than 7 支銅心.
Crosstalk:
In electronics, the term crosstalk (XT) refers to any phenomenon by which a signal transmitted on one circuit or ch ...
djaddy 發表於 2010-2-2 00:56 http://www.post76.com/discuss/images/common/back.gif
多謝師兄深層次的解釋{:1_254:}
yan5137兄,AEI 2.5同1.5都有7芯,購買時請留意.
由電力公司11KV/380V火牛直接獨立供電最好{:6_193:}
CLD3070 發表於 2010-2-1 20:22 http://www.post76.com/discuss/images/common/back.gif
喺{:5_76:} 火牛房睇戲應該幾正
yan5137兄,AEI 2.5同1.5都有7芯,購買時請留意.
yazhou 發表於 2010-2-2 01:25 http://www.post76.com/discuss/images/common/back.gif
唔該師兄
2.5MM 已經夠...呢D線唔使咁緊要....反而分開電源先最重要...你可以用埋冷凍...3百同6百既分別..假如你覺得俾多300 蚊一個唔係D 咩緊要野...部AMP 都萬萬聲..咁就用冷凍...當然....用普通都有明顯效果..
