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Doug Miller Doug Miller is offline
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Default Shop Wall and Electric

In article , wrote:
(Doug Miller) writes:
In article ,

wrote:

You are mistaken. The code requires a certain density of
receptacles in a bedroom. The ampacity of the branch circuit is
calculated based on the number of receptacles on a branch circuit


Please cite the article of the Code which contains that provision.


The density requirements are described in 210-52 (Dwelling Unit Receptacle
Outlets).


Which of course has nothing at all to do with the number of receptacles on a
circuit.

The ampacity requirements are enumerated in section 210-23 (Permissable Loads);
while 210-23 doesn't explicitly reference the number of receptacles (other
than limiting a 20A branch circuit to 14 taps),


It does nothing of the kind. Table 210.24 lists the permissible *conductor
sizes* -- IOW, it says you can use 14ga taps on a 20A circuit. It does *not*
"limit a 20A branch circuit to 14 taps".

common practice is to
account for the number of devices on a branch circuit when determining
the required ampacity.


Never mind "common practice" -- where does the Code place any limits on the
number of receptacles on a circuit, or in any way base the ampacity of that
circuit on the number of receptacles?

Answer: nowhere.