Selection of the SPDs

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franco0618

New member
Location
Colombia
If the circuits are underground, are they immune to electromagnetic fields? therefore SPDs are not necessary?


Thanks
If the circuits are underground, are they immune to electromagnetic fields? therefore SPDs are not necessary?
 

kwired

Electron manager
Location
NE Nebraska
If the circuits are underground, are they immune to electromagnetic fields? therefore SPDs are not necessary?


Thanks
If the circuits are underground, are they immune to electromagnetic fields? therefore SPDs are not necessary?
If you are talking about an underground supply from the POCO, you may eliminate some incidents simply by being underground, but you still get voltage transients on the supply line from switching operations and nearby lightning strikes.
 
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