480Y/277V
__ number of transformers are used for 480Y/277V For Overhead Services
3
Phone Number To Call For A Markout
1-800-272-4480 or 811
Max Number Of Disconnects On A Service Is...
6 at one location
Max Single Service Entrance (480Y/277V) Shall Not Exceed What Amperage
2,500A
Point Of Delineation Between Consumer Owned And Utility Owned For Overhead Services.
Point of Attachment
Indoor Meter Locations Shall Be Within __ft. From The Point Where The Conductors Enter The Building
5ft
Max Amperage 480Y/277V Service That Is Allowed Using Overhead Transformers
400
All Underground Cable Must Be Insulated At What Temperature Rating
900C
Max Service Size For Single Phase Overhead Service at 120/240V
400A
Maximum Amperage Before Ground Fault Protection Is Required
800A
Max Length of Wire For A Service Drop Before Extra Charge To The Customer
100'
The Max Allowable Wire Size For a Trans "S" Cabinet is...
500KC mil
Max Amperage Rating Before Using Isolated Phase Construction
800A
Secondary Color Coding of 3 Phase Conductors at 480Y/277V
A-Brown
B-Orange
C-Yellow
What Section Of The NEC Covers The Installation Of Solar PV Systems?
NEC Article 690