Anchor bolts and grounding lugs
Anchor bolts and grounding lugs
(OP)
Good morning all,
We have plenty of anchor bolts on our tank.
In this condition do we need grounding lugs ?
Your comments is highly appreciated.
We have plenty of anchor bolts on our tank.
In this condition do we need grounding lugs ?
Your comments is highly appreciated.





RE: Anchor bolts and grounding lugs
RE: Anchor bolts and grounding lugs
It is important that all of the metallic components in the tank farm are bonded together.
RE: Anchor bolts and grounding lugs
RE: Anchor bolts and grounding lugs
Since grounding conductors are usually copper, and grounding clamps are usually copper alloy or steel, you make a bimetallic couple (copper and steel) when using a clamp. In the presence of moisture, a corrosion cell occurs in which the steel corrodes to protect the copper. No matter how tightly you bolt the connection, the bimetallic interface still exists; and so does the corrosion, which increases the connection's resistance.
The exothermically welded connection eliminates the conductor-to-steel bimetallic interface. A welded connection has no mechanical interface in the electrical path between the two dissimilar metals. Therefore, no bimetallic corrosion can occur in the current path.
http://ecmweb.com/content/hard-facts-about-bonding...
RE: Anchor bolts and grounding lugs
Thanks for the response.
BIMR,
I have never heard Exothermically welded connection. But yes this is very good info that I would addressed in the future projects.
RE: Anchor bolts and grounding lugs
RE: Anchor bolts and grounding lugs