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[#1] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    

上次討論美式13A蘇頭110V下入220V時會得返7.5A可能影

響後級連續性供電問題...如用13A 又會因瓦菲影響...

今日終于造佐個實驗,把後級用美式13A蘇頭連蘇底換佐舊

庄新貨 正 英國 MK15A 蘇頭連蘇底...測試結果..^^ "
ep71
個人訊息 會員
202.xxx.xxx.102
2002-08-07 23:08
[#2] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
REFISH!
EP71
202.xxx.xxx.102
2002-08-09 00:24
[#3] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
Many people are misleading by the hifi magazine in hk that the us power plug(125V,15A) when connected to a 220V supply will be derated to 7.5A maximun.
If the above statement is correct,it will equivalent to a uk 15A,250V power plug when connected to a 110V supply will be uprated to over 30A current carrying capacity(good news to us & canada). Absolutely wrong!
Don't mix up with the transformer principle(V1*I1=V2*I2). Current carrying capacity of a power plug depends on the conductor size, contact area & the contact pressure.
Insulation material is just to withstand the voltage not to deal with the current carrying capacity. (Under voltage test, us & uk power plug can withstand over 1000V.)
You may treat power plug as a cable or a connector. Will its current carrying capacity decrease when the voltage increase or vice versa?
Mainly the cable size determines the current carrying capacity not the voltage.
Not like transformer, power plug & cable are not energy transformation devices. They are just energy passing devices.
I hope the above can clarify most people's misunderstanding.
Timothy
61.xxx.xxx.75
2002-08-09 03:38
[#4] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
亞Zeezee 中佐毒,冇上尼,好在都有人回覆我 ^^ " thanks!

測試結果..個人覺得係英式15A/220v靚聲過13A/117v美式插座.
>
>剛剛換埋電源濾波插頭,supply power to CDP/Pre-amp/DAC,唔單止底頻更好,連高音都好佐

Many people are misleading by the hifi magazine in hk that the us power plug(125V,15A) when connected to a 220V supply will be derated to 7.5A maximun.

我唔係睇書講話會咁(而家好小睇啦!以前睇'發標音響'睇倒某寫手'小xx'{寫手} 睇到把幾火>_< # 從此繞R),
當我睇清楚個美式13A插頭,寫明13A/117V , 按 電學第一公式'歐姆定律' V=IR 當使用電壓由美式110V升致香港澳門市電電壓220V 時,插頭電流值安培會因此下降至 7.5A,如果係比 CD/DAC/Pre-amp之類火數不大產品,通常冇乜所謂,但係如果係POWER-AMP 就好有問題,我以前亞SIR話電流好似水流一樣,阻力越低速度同流量越大,特別係後級爆棚時迅變電流值就更低,就算用250蚊個銠白金插頭都無補于事(事關'鴨記'某鋪頭個老細話好好多 ^^ 坉蚖包掛 !)...

If the above statement is correct,it will equivalent to a uk 15A,250V power plug when connected to a 110V supply will be uprated to over 30A current carrying capacity(good news to us & canada). Absolutely wrong!

..............?? 道埋係110v時個插頭電流值可以過到30A ,但係你條線及菲士過唔過到就唔知啦!

Don't mix up with the transformer principle(V1*I1=V2*I2). Current carrying capacity of a power plug depends on the conductor size, contact area & the contact pressure.

yes ! it 's transformer principle.


Insulation material is just to withstand the voltage not to deal with the current carrying capacity. (Under voltage test, us & uk power plug can withstand over 1000V.)
通常UK/US工業電線及插座上都標明500V/1000V (max)只係代表膠安全絕緣度及防擊穿值.

You may treat power plug as a cable or a connector. Will its current carrying capacity decrease when the voltage increase or vice versa?
Mainly the cable size determines the current carrying capacity not the voltage.

係!線大佐個插o米要跟著大。

Not like transformer, power plug & cable are not energy transformation devices. They are just energy passing devices.

所以要按負荷要求,好似我個AMP咁..機身標明係最大 尼@電流2000W ,咁當我執起個美式13A插頭同個英式13A插頭,比較過兩隻鉬氻躩p度同(L/N) size差成2倍咁多,心中就起佐個疑問,用 mas 50A(安培) 電源線都好聲過原庄跟機線啦!,剛剛手上有個安冷氣時買多佐15A頭,咪造下實驗..

I hope the above can clarify most people's misunderstanding.

我都係咁o念 ^^ "

由于小弟都係一知半解,加上唔多識英文(係真! 我查字典,可以的話用返多d中文,事關唔知有冇茂誤?),
還望多多賜教 . thanks!

================================================

ps: 亞 Zee/ 電神-leung / 你地又點睇呢?
有空覆覆 ^^ "
ep71
個人訊息 會員
202.xxx.xxx.102
2002-08-09 13:41
[#5] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
Timonthy is right.

13 amp plug means max. safty current=13A
15 amp plug means max. safty current=15A

how many current flow depents on your loading.
same hi-fi system have same loading= same power.

P=V*I


I am not challange your test result that UK15A plug sounds better than US13A
大L
個人訊息 會員
202.xxx.xxx.254
2002-08-09 15:54
[#6] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
唔係呀馬? V=IR敢用既咩?
你果條係電線呀,唔係load呀?個load係你部amp先琝r。。。
艦長
203.xxx.xxx.98
2002-08-09 16:23
[#7] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
不過呢,你個實驗有一半係正確既,不過方向就唔好琚C
D線其實無論大小amp數都有成13A,計落有成二千幾火,邊有amp唔夠用。問題唔係限流,係反應!
你部amp係唔會長時間只用一個電流量,妢|不斷變化!
對大capacity線黎講,比如話50A線黎講,一兩A既變化係小兒科(2/50%=4%),但係對條13A線就大件事(2/13%=15%).
記住,我到家下都無提過個變化係係幾耐完成,亦即係講個variation rate,呢個先係關鍵。不過無儀器,你同我都check唔到,跟手計唔到。
艦長
203.xxx.xxx.114
2002-08-09 16:45
[#8] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
艦長 yes ! u r right ^^ "

not V=ir is P=Vi sorry ^_^ '

所以下一步實驗換埋主入屋電源線,size一樣但改用英國線,最多都係換大一個碼、事關電力公司條fuse管死唔拆得..

再再下一步換室外公共天線至屋內一段天線,改用包銀雙平閉天線,之前屋內已換佐,最大好處係對AV-amp干擾有所改善..

以上都係一百幾拾實驗,歡迎各大大多比意見 ^^ "

大L 大家交流下點算係challange ,有 d 火花先好!
thanks !!
ep71
個人訊息 會員
202.xxx.xxx.102
2002-08-10 01:41
[#9] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
EP71兄,
唉...唔係呀,唔理你VIR又好,PVI又好,話知你PVC都好,個間題係根本就計唔到....
個間題係輁ariation rate個到呀,條線或者個頭究竟可唔可以係短時間之內作出對應要求既電流量變化先係關鍵呀! 敢所以米對amp影響大羅.CDP變化細,就算你部CDP係食電怪,變化都係無AMP敢大.

嘩! 你敢大工程呀! 乜你可以換入屋電咩? 電燈公司唔叉你咩? 小心D好喎,呇a好似有權告你過播.... :(

艦長
203.xxx.xxx.3
2002-08-10 03:06
[#10] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
唉! 保番句先,費事唔導左人.
我既意思唔係話電源線或者頭對AMP影響大過CDP,我淨係指current既variation者. 嘻嘻嘻...
艦長
203.xxx.xxx.3
2002-08-10 03:26
[#11] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
thanks again ^^ ! 艦長

I really understand your 既意思唔係話電源線或者頭對AMP影響大過CDP,我淨係指current既variation者.

that y I said that : 個人覺得係英式15A/220v靚聲過13A/117v美式插座 when I use for my power-Amp
...

嘩! 你敢大工程呀! 乜你可以換入屋電咩? 電燈公司唔叉你咩? 小心D好喎,呇a好似有權告你過播.... :(

Hehehe~! I'm living in macau and I had been try that before ( change MCB of 電力公司) ^^ "






ep71
202.xxx.xxx.102
2002-08-10 11:21
[#12] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式由于小弟唔多識電,加上手頭上有物料咪造下實驗事關13A蘇頭問題    
電錶之後D野你換電燈公司都會比你換,正常情況下要向呇a報番你o既變動,但係你唔理呇a,呇a都唔會理你,不過你換o左又點啊!你屋企咪又係有其他電器用品,又唔係條總線只係比套音響用,咁不如張D錢買D好野o係部機度仲好。
培仔
218.xxx.xxx.2
2002-08-10 19:11
[#13] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
經我測試用MK 15A插蘇加MK 15A蘇底, 結果係......同ep71講一樣, 低頻真係結實左同潛得更低, 能量感更強(換之前都係無用電源濾波), 至於高音我就唔係好覺有乜改善, 可能改善較少.

至於供電問題, 我裝修唔知係咪個電工師父知道玩音響既人既固執(或者用堅持這個字眼會好一點^o^), 駁音響那個蘇底係由兩條fuse去管(15A+15A, 當然還有其他牆蘇share啦, 如果cut電要打晒兩條fuse), 所以不用擔心供電不足(可能亦都比較危險), 重新拉線的話要做入牆, 工程太大了.

CK Ng
202.xxx.xxx.102
2002-08-10 22:33
[#14] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
CK Ng:15A+15A菲士?點解要咁做,咁做好唔正常喎!點解唔用一條20A或30A咁比較好D!
培仔
218.xxx.xxx.2
2002-08-11 10:57
[#15] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
培仔,

其實我都覺得怪, 不過電線係以前穿落, 而fuse係新換, 可能裝了fuse後, 先發現其中兩個fuse所管的蘇一面多, 一面少, 所以並埋, 平均取電, 我都係有次要局部cut電先發現咁駁法.
CK Ng
202.xxx.xxx.102
2002-08-11 21:48
[#16] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
CK_Ng:其實每邊菲士所管插蘇多少唔係問題,只要係13A蘇底,因13A插蘇不是繼幾多個,而係繼它們的範圍,(環形--30A或32A菲士2.5mm線--100平方米),(放射式--30A或32A菲士4mm線--50平方米),(放射式--20A菲士2.5mm線--20平方米)。
培仔
203.xxx.xxx.3
2002-08-11 22:12
[#17] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
WoW! What's up here? A Phd tutorial class? I'm glad to see you guys making positive discussion here!

ep71 and you guys, Do you agree that the fuse inside a 13A plug is the major barrier to make people hesitated to go for? I have tried to replace the copper thread inside a 13A fuse with a cello silver one (rated around 5A) detached from a strand of a cello silver cable. The outcome was quite marvellous that such a almost costless modification made my pair of monoblocs sounded airy.

Cheers!
ZeeZee
202.xxx.xxx.132
2002-08-12 10:19
[#18] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
haha~! ZeeZee long time no c ^^ "

someone say that u r quite busy becasue of

your [new toy] ^_^ "

use {detached from a strand of a cello silver

cable} ... ~_~ "

let me try it tonight !
ep71
202.xxx.xxx.102
2002-08-12 12:52
[#19] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
Hello Guys:
I want to ask a question for all of audiophilers, have you guys found that's another kind of plugs for electricity connection designed or working with a fuse except British standard 13 amps plug in this world?
Even the British standard 15 amps and 5 amps using indoor, and industrial usage in the construction site , whatever 20 amps or 16 amps waterproofing plug , you cannot find one. Talking about protection , you guys really don't agree that the heavy duty for the industrial usage also need safety ?
My exprience is the breaker for the power switch is more safty then a small fuse .
And once my switch on the power amplifier short circuit when I switched on it ,my fingers got shock and burn , the ( Soundbar ) which cost HK$230/ explosed into pieces , but the power switch havn't cut down, that time the fuse inside the plug cannot protect me actually.
By the way ( 真系好寸 ) is a stuff designed for British standard 13 amps Plug , using in the audio and video system , the improvement you can find out very easy , and even just using for a normal tv set , you can discover the improvement. The best design but not expensive , just cost HK$100/ only. And you can try it at frist and then pay money if you're satisfy .
Good luck !
阮小五
218.xxx.xxx.25
2002-08-12 18:55
[#20] ZeeZee 今日終于造佐個實驗,證實佐上次討論美式13A蘇頭問題    
小五兄:

你的 真系好寸 係好洗得,換o左之後重正
Anyway, I have something to talk with you. Please let your contact in my E-Mail. Tks

Little Stone
203.xxx.xxx.191
2002-08-12 19:02
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