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Service cable size 200 amp.
The national electrical code nec recommends a maximum voltage drop of 3 percent for individual household circuits known as branch circuits this is a good goal to shoot for when sizing the conductors for an underground cable the following are the maximum lengths of cable you can use while still maintaining a 3 percent voltage drop for the given wire size awg and.
2 2 2 4 al ser the southwire company 500 ft.
For 215a or less you need to go to 250 000 circular mil wire.
Sizing the conductors.
For use in almost all applications where type se cable is allowed.
2 0 copper wire ser cable mobile home feeder service entrance wires 150 ft.
2 2 2 4 al ser service entry electrical cable can be used in wet and dry locations up to 90 c or 194 f.
This cable is primarily used as a panel feeder in multiple unit dwellings.
The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f.
Service entrance wires 500 kcmil thhn 6 3 se cable how doers get more done need help.
200 amp service is the current standard for new homes and updated service panels.
The southwire company 500 ft.
In addition a 4 bare copper conductor is used for the connection between the ground rod plate and the neutral connection block of the distribution panel for a 200 amp service.
Wire size chart and maximum amp ratings.
By nec guidelines 4 0 is required for three copper conductors carrying 195a in a tray or conduit at not more than 30 deg c ambient with insulation rated for 60 deg c.
A 165 to 200 amp fuse is used on the service entrance wire at the main service panel.