Nasıl yapılır ayırt eder canlı tel% 2c nötr tel ve toprak tel tarafından multimetre
live wire is the phase wire, hang is equivalent to the positive level of direct current. The industry standard is to use yellow, green and red to represent ABC three-phase live wire. The zero line is equivalent to the negatif pole of direct current, usually represented by blue and black, and is represented by the word "n". Ancak, orada yok fark aralarında pozitif ve negatif değişen akım, ve the current starts from the live wire, flows through the electrical equipment and then flows back to the neutral point of the transformer through the zero line to complete the loop.
If the wires in the junction box are all the same color, how can we distinguish the zero line from the live line?
Method one, voltage method, takeing soket wire as an example.
If the the ground wire is determined, the range gear of the multimeter hits the high level of the voltage gear, and the ground wire is taken as the common point to measure the voltage of the ground wire and the other two wires sırasıyla. If there is no voltage, it is the zero wire, and if there is voltage, it is the live wire.
Method 2, induction method, this method is only applicable tose without ground wire, and if there is ground wire, it should be operationd according to method 1.
Benzer şekilde, hit the multimeter to the highest voltage level, and the black stylus is aspended or wound around your finger for seven times (the display value is higher). The red stylus touches two wires, the live wire with voltage or higher voltage, and the zero wire with no voltage or lower voltage.
Orada var ayrıca bazıları multimetreler var a özel dişli için ölçme canlı tel. Biz sadece ihtiyaç ayarlama the gear to the live wire. Bu dişli is genel temsil edilen by "H" and the operation method is the same as yukarıdaki.
Sıradan aileler don't zorunlu var multimetreler, ama biz hepimiz olmalı bir bir ölçüm kalemler. Şimdi orada var an indüksiyon kalem bu çok kolay kullanabilecek. Eğer o öyle ölçüyor a canlı tel, it olacak dönüş kırmızı, ve if it is ölçüm a sıfır tel, it olacak dönüş yeşil, hangisi uygun ve kolay to kullan. I öner it to herkes burada. Eğer sen var a favori arkadaş% 2c siz yapabilirsiniz kontrol it çevrimiçi.
