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消防電子報資料庫首頁 :: 消防英文
 
Fire Department, City of New York FIRE SAFETY EDUCATION:ELECTRICAL HOME SAFETY
-- 紐約市消防局防火安全教育:住家用電安全(下)
文/許宏誠

EXTENSION CORDS(延長線)
Extension cords are only for temporary use. Most cannot carry as much current as permanent wiring and tend to overheat. Overheating can occur at the plug, at the socket or over the entire length of the cord.(延長線的使用有時效性。大多數的延長線都無法承受與固定電線所承受之等量電流,因為較易產生過熱。過熱現象可能出現在插頭、插座或電線上。)


Extension cords come in a variety of wire sizes known as gauges. The most common are 18, 16, 14, 12 and 10. The lower the gauge, the more electrical current (amps) the wire can carry. Thus, 12-gauge wire is heavier than 14-gauge wire. Therefore an extension cord of 16-gauge wire can be used for a table lamp. This is in sharp contrast to a circular saw that will require more power; therefore a heavy duty extension cord of 12-gauge wire should be used. To determine if an extension cord is properly rated for the number and type of devices being plugged in, add the total wattage of each bulb or appliance and then divide by 120 to calculate the total number of amps. If the total amps is equal to or greater than the maximum rating of the cord, you must use a higher rated extension cord. When in doubt, use an extension cord that is heavier than what is required, never lighter.(延長線有各種不同的電線尺寸,通常稱為規號(gauges)。最常見的規號惟18、16、14、12和10。規號越小,電線能承載的電流(安培數)越大。因此,12規號的電線要比14規號的電線重。另外,16規號的延長線可以用來連接檯燈。檯燈與電圓鋸有明顯的差別,電圓鋸需要更多的功率,因此應使用粗大的12規號延長線。若要決定某延長線的額定數是否符合所插入的電器種類和數量要求,應將每個燈泡或電器的總功率(瓦數)相加,然後除以120旯計算安培總數。若安培總數與延長線的最大額定值相等或更大,您必須使用額應值更大的延長線。若不確定,則使用比所需的延長線更粗的延長線,切勿使用較細長的。)

The ability of any cord to carry electricity decreases as the cord's length increases. So, in situations where you might otherwise be able to use a medium duty, 14-gauge extension cord, you may need to upgrade to a heavy duty 12- gauge cord when making a longer run. NEVER use an extension cord, regardless of the gauge with large current appliances such as refrigerators, freezers, air conditioners, clothes dryers or space heaters. These large current appliances generate increased heat in the cord, causing it to overheat, melt or ignite.(任何電線承受電流的能力隨電線長度增加而遞減。所以,在您原本可以使用中型14規號延長線的情況裡,若距離較長,您可能需要升級至重型12規號延長線。在諸如電冰箱、冰櫃、空調機、烘衣機或取暖機等大電流的家用電器上,切勿使涌延長線,無論其規號為何數值。這些大電流電器會在延長線裡產生更多的焦耳熱,從而使電線過熱融化或著火。)






註:本文相關內容來自(本專欄內容可能與我國消防現況有所出入,僅供學習消防英文參考使用。)


(108年12月27日 )
 
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