commercial installation

Status
Not open for further replies.

llsdpl

Member
Location
Baroda, mi usa
Was asked the minimum size service allowed to be installed. Thought was 100 amp. Only thing I find in code book is 100 amp for residential, and 60 amp all others. Does this mean commercial can be 60 amp?
 

Smart $

Esteemed Member
Location
Ohio
Was asked the minimum size service allowed to be installed. Thought was 100 amp. Only thing I find in code book is 100 amp for residential, and 60 amp all others. Does this mean commercial can be 60 amp?
Technically (without getting into POCO policies), any service, including commercial, could be a one- or two-circuit installation, which are 15A and 30A respectively. Haven't seen any of those in decades though.

Yes, to answer your question.. :D
 

kwired

Electron manager
Location
NE Nebraska
Technically (without getting into POCO policies), any service, including commercial, could be a one- or two-circuit installation, which are 15A and 30A respectively. Haven't seen any of those in decades though.

Yes, to answer your question.. :D

A common one circuit application may be a sign, why provide more capacity that will never be needed, and if it is needed - time for a service upgrade.
 

llsdpl

Member
Location
Baroda, mi usa
Commercial installation

Commercial installation

This is in regards to a new installation if meter socket and panel/disconnect...any phase. What size would be the smallest allowed.
 

iwire

Moderator
Staff member
Location
Massachusetts
This is in regards to a new installation if meter socket and panel/disconnect...any phase. What size would be the smallest allowed.

Per the NEC the service could be as small as 15 amps assuming the load calculations come out below 15 amps.
 

kwired

Electron manager
Location
NE Nebraska
Unless the intended load to be served is a single 120 volt outlet, the new 210.64 in the 2014 NEC kind of requires at least a second circuit to be installed - and does kind of stink for some of us that have for years installed services for single utilization equipment installations - especially those that don't have 120 volts readily available, like a single service for a single irrigation pump motor that operates at 480 volts.:( We now need to install additional equipment to supply a 120 volt receptacle at these installations - that really don't need them that bad, almost everyone that does regular service work at these sites has a vehicle mounted generator if they need 120 volts for maintenance, and on top of that they may not even need the 120 volts at/near the service equipment - it may be 1200 feet down the center pivot machine where they need 120 volt power for maintenance reasons:slaphead::slaphead:this is another example of NEC not paying attention to their own purpose in 90.1 and making it a design manual.
 
Status
Not open for further replies.
Top