Services and electrical

Panel schedule — LP-1 (fictional)

Panel schedule: the table is shaped like the panel

Panel schedule: the table is shaped like the panel

This drawing comes from one YAML file. No shape was moved by hand.

Notes in the source (in Japanese)

The schedule is shaped like the panel.

Odd circuits run down the left, even down the right, exactly as the breakerssit in the enclosure. Phase alternates every row, so a two-pole breakerpicks up A and B and balances itself.

A printed copy lives inside the panel door — NEC 408.4(A) asks for acircuit directory in which every circuit is distinguishable from every other.The VA figures here are connected load; demand factors (NEC Article 220)are applied before sizing the feeder.

A two-pole load is written half on each pole. The dryer is 5,000 VA(NEC 220.54 minimum), so 2,500 + 2,500; at 240 V that is 20.8 A on a 30/2.Check every two-pole row: (VA on both poles) ÷ 240 V must sit under the trip,and continuous loads (water heater, air handler) under 80 % of it.

日本語の見本 19(受変電の結線)と対。あちらは単線結線で系統を、こちらは回路表で分岐を書く。

Circuits, loads and the panel are fictional.

Source (YAML)

examples/gallery/142-Panel-schedule.zumen.yaml

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