Quote:
Originally Posted by 784caroline
Thats what we have Electricians for!!
|
Electricians spend years learning what must connect to what. An electrician rarely learns how electricity works. We (engineers) consult electricians to learn what must connect to what. Then use our engineering knowledge to say, "Oh yeah - that makes complete sense."
Why must a protector make a short as possible (ie 'less than 10 foot') connection to earth? Most electricians do not know why and have never learned about 'low impedance'. Electricians are taught about human safety; not about transistor safety. An informed electrician earths a 'whole house' protector that 'meets' code. And also 'exceeds' that code. Now let's discuss the word 'exceed' as in what is required for surge protection and only understood by better informed electricians.
Every and any reader (even a 12 year old) can do this. Go to the breaker box. Find a quarter inch bare copper wire that connects that breaker box to earth ground. If that wire goes over the foundation and down to earth, then it meets code (as taught to every electrician). However that same wire means compromised protection. That wire is too long (excessive impedance). Also adjacent to other non-grounding wires. Has too many sharp bends. And other problems.
See that 180 degree bend over the foundation? Protection compromised. An electrician would not know that. Electricians trained by engineers would understand the defect.
That ground wire must go through the foundation and down to earth. Sharp bends removed. Wire separated from other non-grounding wires. Distance to earth seriously shorter. And a reality unknown to a majority educated by advertising.
A protector is only as effective as its earth ground. That simple. Above described protection defined by how a protector connects to earth. And understood even 100 years ago. Meanwhile, unknown to a majority educated only by hearsay, wild speculation, or advertising.
How many feet does a protector connect to earth ground. The answer then says where hundred of thousands of joules are absorbed. Another sentence with critically relevant numbers. Protection is always defined by where energy dissipates. As in 'always'. As in '100 years ago'. As in not discussed by advertising or hearsay.
Did I mention why every telco switching center and munitions dump does not suffer damage? Because a 'whole house' protector and earthing is found in every facility that cannot have damage. They ignore hearsay, subjective claims, and advertising.