Why is Whole House Surge Protector Installation Necessary?

A surge protector is a device that is meant to safeguard your appliances from incidental power surges. Power surges occur when there is an abrupt increase in the voltage of an electric circuit. This happens when voltage exceeds the safety threshold of approximately 120V. As the excessive current courses through lines, it causes significant damage to machines, which is why it is vital to secure your home against the possibility of voltage spikes.  

Why do Power Surges Occur?

Two kinds of factors can cause power surges:

Internal Power Surge: Internal power surge is caused by a sudden and temporary shut-down of motor-operated appliances (such as refrigerators) in homes, offices, malls, etc. When this happens, the voltage that was previously directed to the motorized machine veers toward other appliances connected to the power grid. The surplus energy causes a power surge and impairs the functioning of the other gadgets.

External Power Surge: As the name suggests, an external power surge originates from the outside environment. For example, this may happen when lightning strikes some equipment or if there’s an obstruction in the transformer, etc.

In today’s world, homes are filled with an overabundance of electric devices. If caution is not exercised, then a power surge will likely harm a gadget’s internal components and drastically reduce its lifespan. In some cases of external power surges, not taking precautions can prove to be disastrous. 

Appliances that are the most susceptible to this are powered by microprocessors, like washing machines, hairdryers, microwaves, etc. Thus, Whole house surge protection device is necessary to ensure a trouble-free and prolonged life for your devices and gadgets.

How does Whole House Surge Protection Work?

Whole house surge protectors operate by redirecting voltage. When voltage hikes, the surge protectors clamp and deviate the excess power. This ensures that the surplus voltage doesn’t reach the main electrical power circuit and mar linked devices. 

A crucial internal element of whole house surge protectors is metal oxide varistors or MOVs. MOVs are composed of three segments: a mass of metal oxide in the middle, a power line, and a grounding line. Metal oxide connects to the lines through semiconductors.

During a voltage hike, the mass of metal oxide reverts unwanted voltage using the grounding wire. The required level of voltage is supplied through the power line. This mechanism allows routine functioning to go on even in case of a power surge. 

Why is Whole House Surge Protection Important?

Whole house surge protectors are a necessary investment to ensure the smooth and continual functioning of expensive appliances. They have different benefits that can be described as follows: 

Preservation Through Layering 

If an appliance connected to a common power circuit experiences a power surge, then other devices on the course may also malfunction. This can be resolved by adopting a layered system. A layered surge protection system links straight to the machine’s electric panel and at the site of use. 

Absolute Protection Against Power Surges:

A vast proportion of power surges are internal such that they gradually impair the workings of devices by attacking their interior components. When this happens, appliances lose their longevity and become ineffective. In the case of external surges, the damage is a lot more severe. That being said, appropriate surge protection measures offer complete security in both instances. 

With extravagant appliances becoming more prevalent in our everyday life, it is only logical to guard such investments. Thus Whole house surge protection is essentially insurance we must have. Schneider Electric offers a wide array of high-grade surge protectors to safeguard your appliances. Visit the #SchneiderElectricIndia website today!


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  1. author
    27 Aug 2019
    Tomas Mandy

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    1. author
      27 Aug 2019
      Britney Millner

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  2. author
    27 Aug 2019
    Simon Downey

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