维修电工口诀.doc

维修电工口诀
Single phase socket has many kinds, often two holes and three holes.-
The two holes are side-by-side, and the tth electricity, bright to be not bright.-
The circuit fault can be checked, the electric power measurement fire and the ground. -
The circuit breaker is not suspicious when it is properly checked.-
If both ends are not bright, the power line is off.
If both ends shine, the zero line breaks or breaks away.
The electrician' s rules (51)-
To measure the method of de voltage using a pointer type multimeter
Before measuring, adjust zero, and the range is moderate. -
Make sure the circuit is negative and the connection connection is clear.-
The black pencil is negative, and the red pencil is the right one.-
If the needle is reversed, the connection is positive and negative. -
The legend of the electrician (52)-
The method of measuring de current using a pointer type multimeter
Before measuring, adjust zero, and the range is moderate. -
Make sure that the circuit is negative and the series connection is clear.-
The black pencil is negative, and the red pencil is the right one.
If the needle is reversed, the connection is positive and negative. -
The legend of the electrician (53)-
The method of measuring the de resistance of a conductor with a pointer type multimeter
The measuring resistance is measured and the range is adjusted to zero.-
Two short circuit to look at the needle, not in zero to adjust.
The dial is zero, the dial is zero. -
The knobs are still there, replacing the batteries. -
Contact must be good, prevent big hands to be suspended. -
Measuring the accuracy of the measurement, the needle is best in the lattice. -
Measure the power supply and turn the knob to the voltage.-
The legend of the electrician (May 14) -
Use a pointer type multimeter to determine the quality of a
capacitor
The capacity is good and bad, the meter can bear. -
Using the resistance K, the pen takes one extreme. -
The needle reached near ze