Feeder Taps

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Vod-Vil

Member
In what situation would you tap a feeder?Is this rule used in worst case scenarios where a new feeder can't be installed?Can you give me some examples of when you have used this rule and for what purpose.
 

Volta

Senior Member
Location
Columbus, Ohio
In what situation would you tap a feeder?Is this rule used in worst case scenarios where a new feeder can't be installed?Can you give me some examples of when you have used this rule and for what purpose.

Service point > [600 kcm] > meter base/ct cabinet > [600kcm] > 400 amp main disconnect / fuses > [3/0] > 200 amp disconnects / fuses.
 

SpiderMT

Member
One example I can give you is recently we installed a new service at a hotel for a cell site. We tapped off of the utility side of the buss and installed a new 100A meter/disconnect about 10 feet away. This was a 3000A service and I ran #2's right off the buss for the new service. No new transformer from the utility required, saves alot of money and perfectly legal.
 

DARUSA

Senior Member
Location
New York City
600 amp Serrvice Disconnect Switch /3 200 amps meters and DS for retail store!!!
Most of the time tap is the only way to don't violate the 6 SDS rule!!!!!( most of the time commercial jobs)
 

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector (Retired)
Another fairly common example, you have several pieces of machinery or motors, each needing a fusible disconnect and you mount these over a wireway bringing a feeder to the wireway and tapping to each disconnect.
Result for example 6 30 amp disconnects tapped from a 150 amp feeder
with #8s.
 
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