The standard lamps consist of features of great importance for the test and repair bench. It is used to perform consumption tests on equipment connected to the power network, detecting short or open circuits. If there is a short, the lamp simply turns on, thus avoiding further damage to the device and the electrical installation itself. The circuit presented is intended for testing devices up to 100W on the 110 V network or 200W on the 220 V network given the use of the 1 A fuse. The lamp used can be 40 to 100 W and must be incandescent.
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