Mike Rapoport wrote that his copy of AC 43.13-1B CHG 1 doesn't have a note
reading, "maximum of two minutes" on the wire chart.

I don't see that note on Figure 11-3 (Conductor chart, intermittent flow)
either, but it's in the text in paragraph 11-68(d): "d. Procedures in
Example No. 1. The procedures in example No. 1, paragraph 11-68c, can be
used to find the wire size for any continuous or intermittent operation
(maximum two minutes). Voltage (e.g. 14 volts, 28 volts, 115 volts, 200
volts) as indicated on the left scale of the wire chart in figures 11-2 and
11-3."

Jon