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  • Category: Opinion About

    Is it necessary or prudent to disconnect inverter also during lightning and thunder?

    Have a query about how to manage inverter during lightening? Searching for detailed technical knowledge and advice for handling the inverter? Find advice from experts on this Ask Expert page.

    The rains are accompanied by lightning and thunder. It is nowadays increasing more and more. In our places also the case is same. The north-east monsoon season is more prone to lightning and thunder. But this year even the South west monsoon also had more lightning and thunder.
    The TV cable service providers always give warnings to disconnect set-top boxes from power during lightning. At my home, as a precaution I disconnect all appliances that are plugged, put off the main switch and even inverter.

    Today my friend said why we should disconnect inverter, as it is needed for power when main power is off.

    Once I had an issue during lightning, when the ELCB of main tripped, inverter tripped and was giving continuous alarm which I could not stop. The electrician was not immediately available. I had to disconnect the battery under remote advice by technician. Then I had to take it to service centre. From that day I was more cautious and was disconnecting everything during lightning and thunder.

    Those who have the technical knowledge and expertise, and also those with practical experience please give me the right answer to this: whether it is necessary to disconnect inverter also during lightning and thunder?
  • Answers

    4 Answers found.
  • The only danger during the thundering storms and lightening is the passing of surge voltages (momentarily high voltage shots from lightening) through the TV antennas, Cable discs or any electrical wiring on the rooftops in the house. These are the ideal carriers of the surge voltages to down the house through the wiring and can damage anything or any electrical or electronic appliance coming in their way. In the houses, equipped with electrical earth conductors on the rooftop connected to the ground generally this surge voltage will pass on to the Earth without doing any damage to the other things. Many times these electrical conductors are not properly grounded and do not work for the intended purposes.

    These surge voltages are of high magnitude but their duration is small and that is the reason that many times they do not damage much as they subdue very quickly.

    So from electricity flow principles there should not be any appliance connected to the electrical lines during that time and also any other backup like generator or Inverter should also be turned off and not to be used. Passing of surge voltages through electrical wiring is conducive to generation of fire and any equipment attached to these lines will only add fuel to this fire. Though electric fires in household electrical lines during thundering and lightening are rare but we have to take precautions however rare they might be.

    Knowledge is power.

  • When there are thundering and lightning, the air in that area will get saturated with stray Voltage, high frequency, and High Voltage. Hence the high voltage can jump from place to place and damage things. A proper grounding may help to some extent. But good protection will come from lightning arrestors, if properly installed.
    Nothing can provide full protection but you can reduce the risks.
    When we are not there in the house if by any chance high voltage comes there is every scope for the electronic gadgets to get spoiled. So it is better if we unplug the equipment. This problem will be high when the area is wetter. That is why in the rainy season we will have this problem more. If we are in the house and we are watching the TV even at that time if there is a problem of voltage there is a risk to the electronic gadgets. It is always advisable to have UPS or good stabilisers which may reduce the problem to some extent.

    always confident

  • It is to question this and that. But for that questioning everything is not good and wise.
    Government that is meteorological department warns the public and fishermen to have some alert in situations like flood and cyclone if we refuse to adhere or listen the loss is to us only and not for Government.
    Spiritual leaders, temple authorities have some norm for certain things and if we public instead of adhering them questioning this and that the danger will be to the violators and not for any other persons.
    Similarly disconnecting the inverter etc during the lightning and thunder is advised to avoid havoc only. If we are thinking as we are smart and questioning means the loss is to us only but not the advisors.

  • In order to take care of the high voltage as a result of thunder, the construction- engineer takes care of the voltage - fluctuations ( may be as high as 11000 voltage momentarily) in order to safeguard of the electrical installations at households. Such arrangement is simple. We need to mount several iron - rods to be mounted at the top of the building. In case of thunder, the high voltage generated will pass on through this rods to the ground without damaging our electrical - equipments.
    However for the extra safety of the appliances, it is better to disconnect the appliances so that the voltage - fluctuations don't damage the electrical items.

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