| 談天說地主旨 ﹝請按主旨作出回應﹞ | 寄件者 | 傳送日期
|
| [#1] 電箱問題 請問如果電流過咗60A(單相電）, 正常跳掣會發生喺家裏面個電箱還是係每層樓分電那個電箱？ 最近屋企外面嗰電箱成日跳制，想了解下係電流嘅問題還是係電箱老化嘅問題？ 有咩方法可以測試到家裡總電流量？ Reference: https://www.moonskyedu.com/furniture/%E9%9B%BB%E5%B7%A5/04%E9%80%B2%E9%9A%8E%E5%AF%A6%E7%BF%92.htm 左下面圖片喺屋企外面嘅電箱  最後修改時間: 2020-01-20 13:24:21 |
shektau6 正式會員14.xxx.xxx.236 |
2020-01-20 13:22 | |
|
|
|||
| [#2] 電箱問題 左邊條線燒到咁，好大機會係有大電流電器短路，如冷氣機之類。 朋友家早幾個月剛剛試過，一開廳冷氣機冇耐就跳出面唔跳入面，唔開就唔跳，最後換冷氣機搞掂。 |
new68u 會員 124.xxx.xxx.21 |
2020-01-20 13:30 |
| [#3] 電箱問題 Use a clip on ammeter to check current.(got one) Bad contact(maybe loosened screw) at the left hand terminal, need cut part of the burnt cable and re-terminate. Of course, don't DIY unless you're REW. In fact, can use loading calculation for maximum current, say electric water heater 3kW, approx 15A, A/C, 1.5 hp 6A, fridge 1.5A etc adding together for approximation. https://detail.tmall.com/item.htm?id=608044903052&ali_refid=a3_430620_1006:1263740046:N:LI4FeVrG/adIuy1M0Vgvw92rgOJnjdXto7lWy8lzobQ=:fc269d59dfdea9045b2eec6287998048&ali_trackid=1_fc269d59dfdea9045b2eec6287998048&spm=a230r.1.14.3 最後修改時間: 2020-01-20 15:12:30 |
alexanderkoo 正式會員 219.xxx.xxx.143 |
2020-01-20 15:11 |
| [#4] 電箱問題 去電工鋪買個電流錶 |
DeepSea^^ 正式會員 182.xxx.xxx.22 |
2020-01-20 16:08 |
| [#5] 電箱問題 除電流外，個 joint 位都應該有問題。 |
simpleman 正式會員 124.xxx.xxx.39 |
2020-01-20 16:26 |
| [#6] 電箱問題 家裡全部用電（don't ask me why...it was a design oversight) Oven 1500w Stove max 7300w Water heaters: 5500W + 8000W 浴室寶： 2000W 全部一齊用就一定過60A不過會因住用. 遲啲會買個電流錶量度下。 Thx for the tips. 師傅啱啱睇完話個掣已經打殘（個制好鬆）同埋要換條線. |
shektau6 正式會員 138.xxx.xxx.226 |
2020-01-20 16:37 |
| [#7] 電箱問題 My experience, loose connection could lead to tripping of RCD(residual current device) due to transient current. |
alexanderkoo 正式會員 219.xxx.xxx.143 |
2020-01-20 16:40 |
| [#8] 電箱問題 The loading is a few times higher than 63 A, by simply add those would be used at the same time and divided by 220v. No much point in having ammeter since it's not borderline case |
alexanderkoo 正式會員 219.xxx.xxx.143 |
2020-01-20 16:50 |
| [#9] 電箱問題 如果間屋衹得單相電好大鑊！ #6 仲有好多家電未計, 如雪柜, 洗衣機, 抽油煙機, HiFi..........等，打電話給中電/港燈問可唔可以增容啦！ 師傅啱啱睇完話個掣已經打殘（個制好鬆）同埋要換條線.＜ 要換比以前大ampere好多的線和掣入屋。 |
0925 正式會員 219.xxx.xxx.176 |
2020-01-20 16:52 |
| [#10] 電箱問題 最靈敏嗰個跳先。 D掣唔係一超就跳，係超左電流佢會再捱一段 tolerance time 仍是超過先會跳。 通常室內要預冷氣機雪櫃壓縮機起動扯電，但係錶前總掣電力公司要跟法例話知你。 又或者係錶前嘅電已經唔穩定，例如行雷閃電時，你錶前個掣跳左先 |
羅有恆 正式會員 14.xxx.xxx.89 |
2020-01-20 16:53 |
| [#11] 電箱問題 要改大過60A應該一定要用三相電。 唯一長遠解決方法就是改用反煤氣。。。。 而家就係就住沖涼嗰陣時吾煮飯 最後修改時間: 2020-01-20 17:15:13 |
shektau6 正式會員 138.xxx.xxx.226 |
2020-01-20 17:13 |
| [#12] 電箱問題 Can change to 3 or 4kW pressurized storage water heater. Instant type of 6 or 8 kW only cannot provide hot water for showering. Uprating to three phase is not easy especially for apartment. My premises on Lamma Island had mains 30ma rcd tripped once every 2 years under light load condition. Conducted insulation test of a/c,(20 Mohm)and wiring(5 Mohm), ok but an old a/c. So, unplugged when not in use. Need to check leakage current to earth by clipped on ammeter(pricey and inaccurate) or series connected meter 15ma would trip rcd slowly. About 10ma would be ok. 最後修改時間: 2020-01-20 17:43:59 |
alexanderkoo 正式會員 219.xxx.xxx.143 |
2020-01-20 17:43 |
| [#13] 電箱問題 全屋改用變頻冷气 不會起動時扯高七倍A 行順後，我部一匹變頻落到1.5~2 amp |
Phil.ng 會員 45.xxx.xxx.99 |
2020-01-21 13:28 |
| 按照傳送日期顯示:由舊至新 由新至舊
|
