iS this corona discharge or normal sparking?

this happened couple of days ago in by apartment transformer. Apparently a small wire melted or something, and there was some lose connection

Question

iS this corona discharge or normal sparking? 

this happened couple of days ago in by apartment transformer. Apparently  a small wire melted or something, and there was some lose connection

anonymous · Answer

attachment

anonymous · Answer

here is another one.. i can't upload video here.. so m uploading snap shots

doc.brown · Answer

It's an electric current traveling through a gap in the wire.  Electrons moving from one side to the other through open air.  Light is being produced at the electrons drop from high energy orbitals to lower ones.

doc.brown · Answer

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