vault backup: 2026-05-01 16:24:18

2026-05-01 16:24:18 -04:00
parent f7c50ed0d2
commit eb30cdb79c
71 changed files with 155 additions and 135 deletions
@@ -35,4 +35,4 @@ and estimation
 It's not engineering to budget for the most likely case.

 Estimators need not know _why_ there tends to be ~~example~~,
-they need need only have basis for applying that generalization to another project.
+they need only have basis for applying that generalization to another project.
@@ -12,7 +12,7 @@ daily: "[[2025-10-31]]"
 _Friday Evening_

 This morning as I was leaving for work I saw a massive congregation
-of all the walky water birds I love so much. A hundred and more, milling about
+of all the walky water [[birds]] I love so much. A hundred and more, milling about
 in-the early sunrise. The banks were covered in ibises picking at the grass
 around the feet of egrets standing proudly and spaced just so. A dozen anhingas
 splashed messily in the center of the pond while a lone stork looked on with
@@ -13,8 +13,8 @@ _Saturday Morning_
 Somehow I've already let an hour get away from me.
 Today I need to do some cleaning: a load of laundry and leftover dishes
 at least. I'll do those after I finish this note, plus some pushups, before
-I shower and change to go visit the birds across the street. Later I'll need
-to go to the store for more sliced almonds and coconut oil so I can make granola
+I shower and change to go visit the [[birds]] across the street. Later I'll need
+to go to the store for more sliced almonds and coconut oil so I can make [[granola]]
 for tomorrow's breakfast. I'll go to Walmart so I can get a new mattress
 protector, too. Copy paper, a 3-hole punch and a small binder would also be
 nice for my typewriter journaling.
@@ -12,4 +12,4 @@ _Saturday Morning_

 I wasted more time doomscrolling after my last note, but I did manage
 to do the laundry, dishes, and pushups. Now I need to shower and dress in time
-to see the birds.
+to see the [[birds]].
@@ -10,8 +10,8 @@ daily: "[[2025-11-01]]"
 # 2025-11-01 08:25:??

 There were fewer than yesterday, but still a ton. There was a chill, but
-I was dressed well for it. I think with exposure the birds will get used to
-mg presence. I saw a bald eagle (_Haliaeetus leucocephalus_) for the first time
+I was dressed well for it. I think with exposure the [[birds]] will get used to
+my presence. I saw a bald eagle (_Haliaeetus leucocephalus_) for the first time
 in Florida. They are ugly creatures, of both body and spirit, unlike the wood
 stork (_Mycteria americana_) which is uglier of body, but pure of heart.
 There was also some guy getting dumped on the phone and not taking it well.
@@ -36,10 +36,9 @@ This analysis of 334.12(A)(2) is flawed.
 Based on the [[nfpa-70_100_definitions|Article 100]] definitions
 of [[nfpa-70_100_definitions#Exposed (as applied to wiring methods).|exposed]]
 and [[nfpa-70_100_definitions#Dwelling, Multifamily.|dwelling]],
-[[nfpa-70_334_nm-cable#334.12(A) Types NM and NMC.|334.12(A)(2)]]
-can be paraphrased as follows:
+334.12(A)(2) can be paraphrased as follows:

-> [!cite] NEC 334.12(A)(2), pp.
+> [!cite] [[nfpa-70_334_nm-cable#334.12(A) Types NM and NMC.|NEC 334.12(A)(2)]], pp.
 > Types NM and NMC cable are not permitted to be installed
 > in accessible spaces above suspended ceilings,
 > _except in buildings containing one or more dwelling units._
@@ -10,9 +10,9 @@ daily: "[[2025-11-11]]"

 _Tuesday Morning, Before Work_

-One of the most appealing aspects of estimating
+One of the most appealing aspects of [[construction-estimating]]
 to me is the dynamic we have with our employers.
-my experience was at Ace that estimators act like,
+my experience was at [[ace-electric-inc|Ace]] that estimators act like,
 and are treated like good artists, like loveable
 little scamps who always get into trouble, but
 you keep them around because they do good work.
@@ -9,11 +9,11 @@ daily: "[[2025-11-11]]"
 ---
 # 2025-11-11 14:41:??

-I just saw a post on a construction estimators forum
+I just saw a post on a [[construction-estimating|construction estimators]] forum
 from a user lamenting that their coworkers and customers
 largely do not understand the difference between markup and margin.

-It made me remember the micro-debates about that I would have with Dale
+It made me remember the micro-debates about that I would have with [[dale-flythe|Dale]]
 every time we were closing out an estimate.
 This is the example I would always give
 while trying to explain it to him.
@@ -7,7 +7,7 @@ daily: "[[2025-11-13]]"
 ---
 # 2025-11-13 08:03:??

-I was thinking about recent critiques of my writing style
+I was thinking about recent critiques of my [[writing]] style
 and how they don't really apply to my speech,
 even though I don't imagine myself approaching them differently.

@@ -10,7 +10,7 @@ daily: "[[2025-11-13]]"

 I'm still working on articulating
 my main difficulty in the transition
-from Ace to PDI estimating.
+from [[ace-electric-inc|Ace]] to [[power-design-inc|PDI]] estimating.

 At a high level,
 it's that our process is built on _instrumental_ methods,
@@ -38,10 +38,7 @@ Fire stopping budget = $25-35 per Unit.
 Robotic Total Station hours: match Structural Foreman.

 For contracts 5--15 million dollars:
-
-$$
-\text{Equipment Cost} \approx 1\%
-$$
+Equipment Cost $$\approx$$ 1% of Contract Value

 Mid Atlantic: 1 trip per month

@@ -9,6 +9,12 @@ daily: "[[2025-11-21]]"
 ---
 # 2025-11-21 10:11:??

+## "Hours Burned vs. Hours Earned"
+
+%%
+A criticism of [[earned-value-management]] in [[construction]].
+%%
+
 > [!quote] [ELECTRI's Industry Benchmarking Tool - ELECTRI International](https://www.electri.org/research-overview/electris-industry-benchmarking-tool/)
 > ### Hours Burned vs. Hours Earned
 >
@@ -23,7 +29,7 @@ This is a terribly problematic metric.
 If a project went over its material budget
 despite standard rigorous oversight
 where would you first look,
-construction or estimating?
+operations or estimating?
 In almost all cases the safer bet is estimating.
 Why should labor be different?

@@ -31,6 +37,4 @@ Wherever there is budget variance
 there is a persistent tendency to blame construction
 before estimating.

-[[earned-value-management-in-construction-estimating]]
-
 [[purpose-of-construction-estimating#The Myth of Estimate Accuracy]]
@@ -9,6 +9,11 @@ daily: "[[2025-11-24]]"

 ## Extracting PDF Panel Schedules

+%%
+steps to extract panel schedule data
+from [[pdf]] drawings
+%%
+
 Extract relevant pages

 Crop Sheet Titles
@@ -8,7 +8,7 @@ daily: "[[2025-12-02]]"

 ### Set Notation Example

-Let $A$ and $B$ be sets
+Let $A$ and $B$ be [[set-theory|sets]]
 sharing some but not all elements.

 * $A \cap B \neq \varnothing$:
@@ -8,6 +8,11 @@ daily: "[[2025-12-02]]"

 ### Panel Schedule Relationship Diagram

+%%
+brainstorming abstractions for `Panelboard` objects,
+possibly for use in custom [[construction-estimating-software]].
+%%
+
 #### Sections

 A panelboard with multiple sections
@@ -14,7 +14,7 @@ and as frameworks for general decision-making.
 The idea that one could devote significant thought
 into making a decision aligned with their [[personal-values]]
 and fail to pick the best option to that end is intriguing to me,
-more so that an accurate quantization of ones values
+moreso that an accurate quantization of ones values
 and that the appropriate framework could trivialize all such decisions.

 Personal decision-making is often described
@@ -8,6 +8,8 @@ daily: "[[2026-02-12]]"
 ---
 # 2026-02-12 09:49:56

+[[electrical-construction]]
+
 ### Interrupting Rating

 * "short-circuit interrupting rating"
@@ -25,7 +27,8 @@ Measured in amperes, usually shown as kAIC.

 [[nfpa-70_110_requirements#^10|NEC 110.10 Circuit Impedance, Short-Circuit Current Ratings, and Other Characteristics.]]

-Applies to **assemblies**: distribution equipment like switchboards, panelboards, switches, etc.
+Applies to **assemblies**: distribution equipment
+like switchboards, panelboards, switches, etc.

 Maximum current that the equipment can withstand
 in a short-circuit event without damage.