Research — Auto Demo
Clearance demo — wires and ground
No controls here — conductor loading sweeps on its own from cold and taut to final sag (max operating temperature plus ice). Four wires share the pole line at different voltages, the heavier ones sag more, and every adjacent pair and every wire-to-ground check re-reads its code-required minimum live. The sweep bar marks the first loading where anything fails, and says which pair. Built for walking a client through why sag and voltage class matter, hands-free.
Conductor loading
0% — coldfirst fail100% — final sag
Reading —
Elevation · midspan clearance, wire to wire and wire to ground (sag curves scripted)
Every check · feet at midspan
| Check | Req | Actual | Margin | Status |
|---|
Worst check
Actual
Required
Margin
How the check read it
Real numbers, illustrative sequence:constants are copied from the harness; the walkthrough order is staged. The required clearances (GO 95 Table 2, type 2, for every adjacent pair; NESC 2023 Table 232-1, roads, for each wire to ground) come from the harness lookups and are checked against values exported from the real Python. The conductor heights, the sag curves and the loading percentages are a scripted illustration, not a sag/tension solve. Pair rules are CPUC GO 95 and ground rules are NESC, two different jurisdictions' tables shown side by side, as in the earlier ground-only version of this demo. Communications is modeled at 48 V, as in the make-ready demo, because GO 95 Table 2's 0 V row is all zeros. Ground rows use the harness's NESC category logic: 12.47 kV and 4.16 kV bare (category 4, 5.6 m), 240 V triplex insulated and comm insulated and grounded (category 1, 4.7 m); the harness value of 5.6 m (18.4 ft) replaces the 18.5 ft used by the earlier single-wire version.Real functions this maps to:
lookup_go95_table2_clearance, lookup_nesc_table232_1_clearance.Not modeled: the sag/tension solve itself (each curve is a scripted parabola between fixed supports), wind and ice case selection, any midspan-specific reduction or exception to Table 2 or Table 232-1, horizontal clearances, pole-top and pole-face rules, non-adjacent pairs (the harness's pole walk checks adjacent pairs only), NESC Table 235-5, the above-22 kV footnote adder, and any road-crossing case besides roads, streets and areas subject to truck traffic.See also:Framing/guying auto demo · Make-ready auto demo