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| [#61] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 #58 operation temperature 係指環境溫度,唔係件產品嘅溫度。 |
Dlbf 203.xxx.xxx.174 |
2025-08-01 20:56 | |
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| [#62] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 液晶顯示屏 LCD 為例: ![]() |
Dlbf 203.xxx.xxx.174 |
2025-08-01 20:59 |
| [#63] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 民用電子零件,規格以 75℃上限為標準,超過呢個基準使用,就唔好追究廠家。 同樣,借 #55, 0925師兄帖文一用。。 "條 thermo fuse 標示 130 ℃。" 呢個 KDK ,樂聲旗下品牌, 如果設計師計數,實測,呢個線包正常溫度都係唔過 7-80℃ (唔好話 4-50℃), 照計用條 105℃已經好保險 (如果話 4-50℃,咁條保險絲用 85℃足夠矣)。 整條 130 ℃條險絲,想賠埋間廠嗎 ? |
bt99 1.xxx.xxx.25 |
2025-08-01 21:19 |
| [#64] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 Quick asking AI. The operating temperature limit for a fan motor varies significantly depending on the specific motor type, application, and insulation class. However, a general guideline for standard motors is that the maximum winding temperature should not exceed the insulation class rating, and for <50mm frame size motors with thermal protection, the surface temperature should stay below 130°C. |
lym 194.xxx.xxx.50 |
2025-08-01 21:39 |
| [#65] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 先要釐訂好,呢個風扇工作"溫度"場景。 分殼內同殼外。 #41,係現場實測工作中風扇溫度, 室溫 25℃,風扇外殼都係 25℃, 殼內紅色位置,大概係線包金屬支架,58.8℃。 即是話,外殼溫度手摸係無溫熱感, 高熱係內部摩打發出,被外殼阻隔。 但 ~~ 劣品如果升溫不止,又無溫度保險絲, 高熱就直接傳上膠殼,等待gg。 ![]() |
bt99 1.xxx.xxx.25 |
2025-08-01 21:41 |
| [#66] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 #64 即係話,0925師兄隻 KDK,線包真係經歷超過130℃。 而正常時,推斷線包溫度都有70-80℃。 最後修改時間: 2025-08-01 21:47:08 |
bt99 1.xxx.xxx.25 |
2025-08-01 21:43 |
| [#67] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 這不是反證左那KDK的保護線路真的起了作用?應該是個讚。好過新聞聽火燭樓D住戶話警鐘吾該響時響,真要響時就冇響。 |
lym 194.xxx.xxx.50 |
2025-08-01 21:46 |
| [#68] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 早前講過,廿蚊有找又係電風扇, 將貨就價,偷工減料,銅線大概都唔會用, 何況價值幾個仙條保險絲。 |
bt99 1.xxx.xxx.25 |
2025-08-01 21:49 |
| [#69] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 我轉一個方式問: ![]() ![]() 最後修改時間: 2025-08-01 21:51:49 |
0925 119.xxx.xxx.93 |
2025-08-01 21:51 |
| [#70] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 what is class B & class F insulation of a wall fan Great question! Class B and Class F insulation refer to the thermal endurance of the materials used in the motor windings of a wall fan. These classes are defined by standards like NEMA (National Electrical Manufacturers Association) and help determine how hot a motor can safely get during operation. ? Class B Insulation - Max temperature rating: 130°C - Typical use: Common in 60 Hz motors, especially in North America - Materials: Often includes mica, fiberglass, and certain varnishes - Application: Suitable for environments with moderate heat exposure ? Class F Insulation - Max temperature rating: 155°C - Typical use: More common in 50 Hz motors used internationally - Materials: Enhanced versions of Class B materials, upgraded with silicone, alkyd-resin varnish, and other high-end adhesives - Application: Ideal for fans operating in hotter or more demanding conditions ⚙️ Why It Matters for Wall Fans - The insulation class affects how long the motor lasts under heat stress. - Every 10°C rise above the rated temperature can halve the motor’s lifespan. - Choosing the right class ensures safe, efficient, and durable performance. If you're picking a fan for a warm room or continuous use, Class F might be the safer bet. Want help comparing fan models or checking what class your current fan uses? |
0925 119.xxx.xxx.93 |
2025-08-01 21:57 |
[#71] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 ![]() ![]() 最後修改時間: 2025-08-01 22:07:23 |
0925 119.xxx.xxx.93 |
2025-08-01 22:06 |
| [#72] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 再補充一點,要保護線包防高熱引至著火, 保險絲要同銅線保持緊密接觸,直接感應線芯溫度變化, 多數係包裹在線包最外一層。 外置式溫度開關,雖然同樣係達到指定溫度就斷電, 但因為係感應空間溫度,同本體發熱器件,有段空間距離,, 到殼內溫度達130°C時,摩打可能已達 200°C,著火了。。 外置式溫度開關,只適用於風筒,熱風機等 .. 防止風道阻塞時,保護用,非用於線包類,火牛摩打等等 ... |
bt99 1.xxx.xxx.25 |
2025-08-01 22:15 |
[#73] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 ![]() ![]() ![]() ![]() ![]() 最後修改時間: 2025-08-01 22:40:57 |
0925 119.xxx.xxx.93 |
2025-08-01 22:38 |
| [#74] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 光管是源頭???唔係下 ![]() |
300Bguy 61.xxx.xxx.170 |
2025-08-01 22:38 |
| [#75] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 #73 哈 ~~ 精神可嘉, 睇個樣相信年事已高,放過佢啦 .... |
bt99 1.xxx.xxx.25 |
2025-08-01 22:41 |
| [#76] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 光管通常裝天花,天花除非係全木框假天花, 如果係石屎,有乜咁好燒?? |
bt99 1.xxx.xxx.25 |
2025-08-01 22:42 |
| [#77] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 劣質風扇係源頭合理得多 莫非係X米之類既大牌子 唔可以講出來 |
micromegamah 218.xxx.xxx.237 |
2025-08-01 23:56 |
| [#78] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 婦人窗邊求救倖存 男友、兒子、曾外孫葬身火海< 個 75歲老婦(老人家的同居女友?)可以清醒呼叫俾消防員救走而3個男人卻...........,會唔會有人........................緃火? ![]() 最後修改時間: 2025-08-02 00:32:42 |
0925 119.xxx.xxx.93 |
2025-08-02 00:32 |
| [#79] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 #78 新聞報導話老婦現時情況嚴重 |
micromegamah 218.xxx.xxx.237 |
2025-08-02 01:01 |
| [#80] 旺角3死1傷奪命火.冷氣機疑起火.1男1老翁1男童不治 hk 01 旺角洗衣街建煌華廈3死奪命火警,起火單位堆滿雜物,屋內嚴重熏黑。(梁偉權攝) ![]() |
boneast 112.xxx.xxx.125 |
2025-08-02 01:19 |