§ 9 Check meter verification

This information is great for overall development. Each counter is the so-called Calibration interval (IPI), through which theoretically should come to your power company inspector to check the correctness of its inclusion and accuracy. I will not lie, I will not say exactly, but it seems to be for induction meter is 5 years for e -10. You have the house where the farthest box should be based on a passport in which the counter should be the date of next calibration. Do not look at the interval specified in the Recalibration passport - some very clever producers to show what they are good counters to overestimate this interval. This interval is determined not just manufacturers. And just in your best interest to that date it was at its best - seals, properly connected, and the apartment did not go left any wires. If you do not have fillings, rolled up to the electrician ZhEKovskomu it just is. Type was an emergency situation, he tore off the seal and put their - it's not forbidden. Of course after the failure of supervision must be notified, but there is such a mess that no one will be exactly the sort who are called or not. They were on an emergency call is not dozoveshsya.
If they do not come after the expiration of verification is not a sin to go and by yourself. The explanation could be something like this: "The term of reference checking out your meter and is now known that he considered - can be electricity, and maybe the wind speed in Antarctica. Therefore, until the verification is carried out - to pay for electricity will not." It's kind of like a machine: no inspection - you can not go. And any court will be on your side. Unverified meter is faulty.

Checking the meter at the installation site are always made ​​without instrument transformers which connect the counter. For this exemplary devices are included in the secondary circuits of current transformers and voltage transformers. Verification can be made ​​or the method of wattmeter and a stopwatch, or by comparison with a standard meter.
The use of a standard meter is always preferable, as this load variations do not affect the results of verification. However, in practice almost always wattmeter method is used as a stopwatch, and more accessible (portable meter model has not yet produced in this country.) Before calibration, depending on the accuracy class under verification count must be suitably selected according to accuracy class model devices. According to the basic requirements of GOST 14767-69 exemplary devices must be capable of measuring power with an error not exceeding 1/4 permissible error under verification counter. Thus, for class 2.0 meter error in the determination of electricity shall not exceed 0.5%. It should be remembered that this error is an error of the resulting model instruments that measure the energy, that is, one or two watt meter and a stopwatch.

In life, it all looks like a model connecting the wattmeter, an ammeter or a voltmeter connected exemplary load and the current power is measured over a given period. That is simply considered a number of revolutions of the disk (or pulses for e) for some standard current and voltage applied to the counter for a while. Matched the number of - fit, do not coincide - in the lab ...

Напоследок расскажу одну забавную историю (реальную) из жизни. PS Finally tell a funny story (real) out of life. It was at my friend's cottage, and walked beside her power line. But officially it to her was not connected. Whether he was lazy to run over the connection, or set limits on the power ran out and therefore not allowed to connect. In short, this time of the dark and got lost in the historical obscurity.
Well, he, without hesitation, dug a trench to the nearest pole, put the cable into it, raised the pole and connected. Well, at the hunter and the beast running. Check right there and catch him red-handed as they say. The cable is cut at the root pole and taken away. And after some time comes to him a claim - pay dear comrade electricity for six months at the rate of 1.5 kW every hour around the clock.
I do not remember exactly how many, but to get a decent amount. Well, my offender and says: "Well-paid energy, if you subtract the value of my sliced ​​the cable." Energy fell out immediately with righteous indignation and said: "And do you not insolent guy at all?"
The case went to trial. Energy flatly refused to recognize the cable cut, and indeed his presence on the pole. A friend and says, "Well, since cable has never been, how could I do to steal electricity?".
Court win, no fines are not paid, half used the electricity for free. Losses: 5 m cable. However later on an official connection, he had big, big problems, but that's another story ...