CODE REFERENCE FOR TERMINATION OF EGC UNDER MULTIPLE TERMINAL POINTS

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JOHN SWING

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afghanistan
CAN ANYONE TELL ME IF THERE IS A CODE REFERENCE FOR THIS PARTICULAR SITUATION FOUND IN THEATER (AFGHANISTAN). I FOUND A NEW CONSTRUCTION INSTALLATION WHERE A 225 FEEDER WAS TERMINATED INTO A 225 MAIN BREAKER PANEL. THE EQUIPMENT GROUNDING CONDUCTOR WAS A BARE #4 AWG SPLIT APART AND LANDED UNDER 2 SEPERATE TERMINAL POINTS ON THE GROUND BAR. WE ALL KNOW YOU CANNOT TERMINATE MORE THAN ONE CONDUCTOR UNDER A LUG UNLESS IT IS LISTED FOR SUCH BUT I CANNOT FIND A CODE REFERENCE STATING THAT THIS IS ILLEGAL. AS A MATTER OF FACT I CAN REMEMBER A TIME OR TWO THAT I HAVE HAD TO DO THIS IN A FIELD INSTALLATION.
 
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I believe it is commonly considered a violation of 110.3(B)
 
I agree with Gus. In the US most panels will accept a #4 with no problem. They also make lugs with feet that will 2 feet in the ground bar. This doesn't seem much different then splitting the wire esp. on larger size wires.
 
K8MHZ said:
Where in the instructions does it say it can't be done?
Click to expand...

On most panels I find a data sheet which gives the acceptable wire sizes for the various termination points and in addition provides a Cat # for lugs which adapt to larger wires.
The same info is available in the catalogs.
 
augie47 said:
On most panels I find a data sheet which gives the acceptable wire sizes for the various termination points and in addition provides a Cat # for lugs which adapt to larger wires.
The same info is available in the catalogs.
Click to expand...

That data is for the lugs on the terminal bus though. The installer has likely met those requirements:)

Now what about making one larger conductor into two smaller ones?

Maybe a violation of 310.4 Conductors in parallel?
 
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