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+---
+id:
+aliases: []
+title: 2026-02-05 10:14:01
+tags:
+  - authorship/original
+  - destiny/permanent
+  - status/draft
+  - type/timestamped
+  - occupational/takeoff
+dg-publish: true
+daily: "[[2026-02-05]]"
+weekly: "[[2026-W06]]"
+monthly: "[[2026-02]]"
+quarterly: "[[2026-Q1]]"
+yearly: "[[2026]]"
+---
+# 2026-02-05 10:14:01
+
+## Mechanical Connection Selection
+
+Relevant to [[electrical-takeoff]],
+sourced from Joel Jansen's OneNote Takeoff Notes "Mechanical Connections".
+
+Ben says he has never used any PVC assembly except .../`PVC - ...`.
+
+### NM Connections
+
+* .../`NM CABLE ASSEMBLIES`
+
+Type III, IV, and V construction.
+Usually only 6 AWG and smaller;
+EMT is expected to be cheaper for larger sizes.
+
+### MC Connections
+
+* .../`MC CABLE ASSEMBLIES`
+
+Type I and II construction.
+
+> [!quote] Paraphrased from Source
+> Usually only short runs,
+> otherwise use PVC if possible.
+
+> [!important] 
+> Note that MC cable may be forbidden for this application.
+> > [!quote] Hampton Roads Navy UH - Newport News, Project Specifications
+> > MC cable shall not be allowed for wiring to mechanical equipment
+> > except for within the dwelling units.
+
+### EMT Connections
+
+* .../`EMT SS - ...`
+* .../`EMT COMP - ...`
+
+May be preferred for equipment in the same electrical room
+as the panel feeding it,
+otherwise treat as last resort,
+preferring MC or PVC.
+
+### PVC Connections
+
+* .../`PVC - ...`
+
+Use where equipment disconnect is not integral.
+
+* .../`PVC - ... - PVC CEILING BOX`
+
+J-box in the ceiling for mechanical connections,
+or where a motor-rated switch is shown.
+
+* .../`PVC - ... - STL BOX & EXT RING`
+
+Use for equipment powered from a wall mount j-box
+
+* .../`PVC - ... - EMT DROP`
+
+> Assembly Note: Does not include j-box
+
+Use in lieu of .../`PVC - ...`
+where drop would be exposed
+if PVC is not permitted to be exposed.
+
+> Also use for J-Boxes for Heaters.
+
+> [!example]
+> directional unit heater shown with connection to a flush wall mount j-box
+
+* .../`PVC - ... - EMT RISE`
+
+> Assembly Note: Does not include j-box
+
+> Use if panels are located on level below panel.
+> EMT covers vertical transition for exposed conduit
+
+* .../`PVC - MECH CONNECTION - SGL REC`
+
+* .../`PVC - STL BOX W/ EXT RING & COVER`
+
+> For garage heaters, no labor/power term