Can the clamp ammeter measure the current to see whether the wire leaks? Or stealing electricity?
1. The clamp ammeter is a special tool for measuring AC current. It is impossible to accurately distinguish the behavior of stealing electricity by measuring current with the clamp ammeter, because there are many means of stealing electricity and it is more complicated.
2. Take the case of stealing electricity by "bypassing" the metering meter (for example, changing the transformer ※※※) as an example. There is no abnormality in the three-phase current, but the metering data is low, which cannot be measured by using the clamp ammeter, and comprehensive measures should be taken to be effective.
3. The same is true for single-phase power supply lines, such as smart prepaid meters. The criminals make the meters slow by changing the meters (reference original ※※※), but it can't be measured by clamp meters alone.
4. It is also very difficult to measure the leakage current with a clamp meter, because the leakage current is very small (if the current is large, it is not leakage, but short circuit), and the measured data has no reference.
Method of judging the leakage of user's internal lines and equipment with clamp ammeter
The method of judging the leakage of user's internal lines and equipment by using clamp ammeter;
Measure the leakage current at the user's power inlet line with a clamp ammeter. At the same time, put the user's electrical equipment and lamps in and out one by one, and find the leakage equipment and lamps by looking at the change of leakage current detected by the clamp ammeter.
If all the equipment and lamps are in good condition, or the equipment with leakage has been withdrawn, but the clamp ammeter shows that the user still has leakage current, it may be that the user's low-voltage line has leakage and should be treated according to the specific situation. For the leakage fault of buried pipeline, we can only take the treatment method of changing lines or rewiring. Electrician technology home
The above method can also be used to find the location of electricity theft.
