vault backup: 2026-05-04 17:15:02

wiring-method-selection.md

@@ -75,17 +75,15 @@ Consult with the Senior Construction Estimator in this case.
 
 > [!important]
 > Be careful of ambiguous terminology in specifications and PDI proposals:
-> "underground" and "below grade" are sometimes used inappropriately
-> to describe PVC in-slab.
+> "underground" and "below grade" are sometimes used inappropriately to describe PVC in-slab.
 > It may be that rigid stub-ups are only necessary when emerging from grade (dirt),
 > but not when emerging from the slab.
 
-#### Garage Slab
+#### Precast Slab
 
-_Conventional Slab_: PVC in Slab
-_Precast_: EMT
+Typical of garage construction.
 
-See [[pdi-breakdowns#Garage]] for more info.
+PVC in-slab may not be utilized for precast slabs.
 
 #### Slab Thickness
 
@@ -116,7 +114,10 @@ may be routed through with special permission.
 
 #### Post-Tensioned Slabs
 
-[[construction-methods#Post-Tensioned Slab|Post-Tensioned Slab]]
+Raceway considerations for
+[[construction-methods#Post-Tensioned Slab|post-tensioned slabs]],
+(namely if PVC may be utilized, and if so, what sizes)
+are contentious.
 
 > [!cite] [[joel-jansen]] 2025-08-15, in reference to [[belle-meade-plaza|Belle Meade Plaza]] (pp.)
 > No affect on takeoff. Routing in slab still possible.
@@ -134,7 +135,9 @@ may be routed through with special permission.
 
 ### MC Cable Overhead
 
-_Market Type = Assisted Living:_ MC-AP may be required.
+_Market Type = Assisted Living:_
+[MC AP cable](https://www.southwire.com/wire-cable/metal-clad-cable/c/c-mc-mcap)
+may be required.
 
 #### Concealment
 
@@ -145,10 +148,15 @@ may only be used where they will be concealed from view.
 > Temporary provisions for unfinished spaces
 > (e.g. core and shell [[pdi-building-types#Retail|retail]])
 
+> [!info]
+> This is not a code requirement,
+> though it is frequently stated to be.
+> It is, however, near universal specification.
+
 #### Multi-Circuit Homeruns
 
 Different schools of thought exist
-on whether to use multi-neutral MC or EMT for homeruns.
+on whether to use multi-neutral MC or pipe and wire for homeruns.
 Which is more cost-effective
 is apparently subject to transient market conditions.
 Seek clarification from your senior on a job by job basis.
@@ -189,6 +197,8 @@ Use compression fittings.
 
 Not usually permissible, except in Florida.
 
+Where acceptable usually utilized in lieu of EMT.
+
 ## By Specification
 
 > [!info] Example Specs Relevant to Wiring Methods Selection
@@ -218,7 +228,7 @@ flowchart
 
 #### Fire Rated Feeders
 
-[[fire-resistive-wiring-methods-takeoff]]
+Where required see [[fire-resistive-wiring-methods-takeoff]].
 
 PDI estimating practice is to run all "emergency" feeds
 (life-safety or just standby)