Super magnet and electricity meter

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The new strong magnets, which are also often called super magnets, are very dangerous and can damage many devices, including an electricity meter. With a little care, however, you can prevent damage.

Magnetism and Electric Meter

There are certainly two reasons why electricity meters are repeatedly damaged by magnets. One is the rumor that you can bring these to a standstill with super magnets, the other that Many find it practical to use magnets to send messages, for example the last meter reading, to the meter pin. For these reasons, you should not use it.

  • A large flywheel runs in mechanical counters, which drives the counter's mechanics. As long as the disc is turning, the meter will show electricity consumption. As soon as no electricity is drawn, a built-in magnetic brake stops the disc so that no further consumption is counted even though no electricity is drawn. If you attach a strong magnet to the outside, you bring this brake magnet out of its position - if you are unlucky, even in the long term. The meter will show a higher power consumption than you actually have, it needs to be replaced. The exchange will probably be at your expense.
  • Electronic electricity meters are not quite as vulnerable to super magnets, especially since most meters have a housing made of a material that does not have a magnet. However, since a magnet can in principle influence storage media that work via magnetism, you should not attach anything to these meters with a magnet.

Dealing with super magnets

  • As a rule, the effect of a magnetic field decreases with increasing distance. So if you have a super magnet, the only way to avoid damage is to keep it at an appropriate distance from electronic devices and electricity meters.
  • Don't overdo it if you just want to stick something with magnets. You don't need super magnets to attach a few pieces of paper to the refrigerator to staple. It is therefore not necessary for extremely strong magnets to be openly accessible.
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  • Not only can you damage electricity meters with magnets, magnetic strips from check cards or credit cards as well as hard drives are also at risk. Never attach such objects to a pin board or the like with a magnet.
  • Super magnets are not toys. A particular danger is that these are very small and can be swallowed. The tiny but electrically conductive parts on an electricity meter can also come into contact with electrical parts and cause a short circuit.
  • Remember that a neodymium disc magnet 45mm in diameter and 30mm thick is a An anti-magnetic mechanical watch from a distance of 10 cm can damage, an ordinary mechanical watch even from 60 cm distance. A pacemaker can be put into test mode from a distance of 10 inches and this can cause fatal complications.
  • Make sure that the magnetic fields of individual magnets do not increase unnecessarily. Magnets will arrange themselves in a bar by themselves, which increases the effect. Split the pole in half and place the second stack next to the first. This is how the forces compensate each other.
  • Put the stacks of magnets or super magnets in tin cans to shield the magnetic fields. Magnets packed in this way cannot damage the electricity meter.
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