日常生活需知
(消基會 93.12.25 福報)
漏電若在30 毫安培以下, 人體接觸到會短時間經神恍惚; 50毫安培以下手會被吸住, 造成不可恢復的傷害, 若接觸到漏電達100毫安培的電桿,則會死亡.
貼心的叮嚀 :
下雨天絕對不要碰電線桿,即使是晴天,由於路燈電線可能因絕緣體老化漏電接觸到沒有加蓋的電線桿能仍可能會觸電.
消基會建議居家電器安全
Safety Notice
(Source noted in Chinese section below.)
If leakage current is below 30 mA, brief human contact may cause momentary disorientation. Below 50 mA, your hand can “lock on,” causing irreversible injury. Contact with a pole leaking around 100 mA can be fatal.
Friendly reminder: Never touch utility poles on rainy days. Even on clear days, streetlight wiring with aged insulation may leak; uncovered poles could still be energized and cause electric shock.
Consumer Foundation advice: Home appliance electrical safety.
交流洩漏電流鉗錶(10 μA 解析度)
Model:DCM-040
10 μA @ 40 mA
遮蔽式鉗口
30 mm 鉗口
高速條形圖
50/60 Hz • 40–1 kHz
主要特點
- 專為洩漏電流量測設計的高精度交流鉗錶。
- 40 mA 檔具備 10 μA 高解析度。
- 遮蔽式變壓器鉗口,可降低外部雜散磁場影響。
- 30 mm 大口徑鉗口。
- 五段量程(40 mA、400 mA、4 A、40 A、60 A)滿足多種應用。
- 濾波電路可抑制高頻雜訊與諧波,提升交流電流量測穩定度。
- 3¾ 位數大型 LCD 與 20 次/秒快速條形圖,利於瞬態觀察。
- 具導通與頻率量測;最大/最小值、資料鎖定、相對值功能。
- 電阻量測具 600 V 過載保護。
- 單一旋鈕,操作直覺便利。
Key Features
- Accurate AC clamp meter for leakage current measurement.
- High 10 μA resolution on 40 mA range.
- Shielded transformer jaws minimize external magnetic field effects.
- Large 30 mm jaw opening.
- Five ranges (40 mA, 400 mA, 4 A, 40 A, 60 A) for broad applications.
- Filter circuit reduces high-frequency noise and harmonics for AC current measurement.
- Large 3¾-digit LCD with fast 20/s bargraph for transients.
- Continuity and frequency measurement; Max/Min, Data Hold, Relative.
- 600 V overload protection for resistance measurement.
- Simple single rotary switch operation.
交流電流
- 量程 / 解析度 / 準確度(50/60 Hz;寬頻 40–1 kHz):
- 40 mA / 10 μA:±1.0%±3dgt;寬頻:±2.0%±5dgt
- 400 mA / 100 μA:±1.0%±3dgt;寬頻:±2.0%±5dgt
- 4 A / 1 mA:±1.0%±3dgt;寬頻:±2.0%±5dgt
- 40 A / 10 mA:±1.0%±3dgt;寬頻:±2.0%±5dgt
- 60 A(0–50 A)/ 100 mA:±1.5%±3dgt;寬頻:±3.0%±5dgt
- 60 A(50–60 A)/ 100 mA:±3.0%±5dgt;寬頻:±3.5%±5dgt
交流電壓(輸入阻抗:10 MΩ)
- 量程 / 解析度 / 準確度(50/60 Hz;40–1 kHz):400 V / 0.1 V / ±1.5%±2dgt;寬頻:±2.0%±4dgt(過載保護:AC 800 V)
電阻與導通
- 開路電壓 ≈ 0.4 V
- 40–400 Ω / 0.1 Ω / ±1.0%±2dgt;蜂鳴 < 38.0 Ω(過載保護:AC 600 V)
一般規格
- 可測導體直徑:最大約 30 mm
- 電池:1.5 V × 2(SUM-3)
- 顯示:3¾ 位數 LCD,含 40 格條形圖
- 量程選擇:手動
- 過載指示:最左位數字閃爍
- 功耗:約 10 mA
- 取樣率:顯示 2 次/秒,條形圖 20 次/秒
- 操作溫度:−10 °C 至 50 °C;濕度 < 85% RH
- 保存溫度:−20 °C 至 60 °C;濕度 < 75% RH
- 海拔:≤ 2000 m
- 尺寸:210 × 62.0 × 35.6 mm(8.3 × 2.4 × 1.4 in)
- 重量:約 200 g(含電池)
- 附屬品:攜帶包 ×1、使用說明書 ×1、1.5 V 電池 ×2
AC Current
- Ranges / Resolution / Accuracy (50/60 Hz; Wide 40–1 kHz):
- 40 mA / 10 μA: ±1.0%±3dgt; Wide: ±2.0%±5dgt
- 400 mA / 100 μA: ±1.0%±3dgt; Wide: ±2.0%±5dgt
- 4 A / 1 mA: ±1.0%±3dgt; Wide: ±2.0%±5dgt
- 40 A / 10 mA: ±1.0%±3dgt; Wide: ±2.0%±5dgt
- 60 A (0–50 A) / 100 mA: ±1.5%±3dgt; Wide: ±3.0%±5dgt
- 60 A (50–60 A) / 100 mA: ±3.0%±5dgt; Wide: ±3.5%±5dgt
AC Voltage (Input Impedance: 10 MΩ)
- Range / Resolution / Accuracy (50/60 Hz; 40–1 kHz): 400 V / 0.1 V / ±1.5%±2dgt; Wide: ±2.0%±4dgt (Overload Protection: AC 800 V)
Resistance & Continuity
- Open-circuit voltage ≈ 0.4 V
- 40–400 Ω / 0.1 Ω / ±1.0%±2dgt; Beep < 38.0 Ω (Overload Protection: AC 600 V)
General
- Conductor size: max. 30 mm (approx.)
- Battery: 1.5 V × 2 (SUM-3)
- Display: 3¾ LCD with 40-segment bargraph
- Range selection: Manual
- Overload indication: Leftmost digit blinks
- Power consumption: ≈ 10 mA
- Sampling: 2 times/s (display), 20 times/s (bargraph)
- Operating temp: −10 °C to 50 °C; humidity < 85% RH
- Storage temp: −20 °C to 60 °C; humidity < 75% RH
- Altitude: up to 2000 m
- Dimensions: 210 × 62.0 × 35.6 mm (8.3 × 2.4 × 1.4 in)
- Weight: ≈ 200 g (incl. battery)
- Accessories: Carrying bag ×1, User manual ×1, 1.5 V battery ×2