vault backup: 2025-10-31 16:26:48

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2025-10-31 16:26:48 -04:00
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commit 40e95d4f7b
7 changed files with 112 additions and 34 deletions
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@@ -38,17 +38,31 @@ The voltage measured between any line and neutral is called **phase voltage**.
### Formula ### Formula
The formula for active power in a three phase system is given by
$$ $$
P = \sqrt{3} \times V_{L} \times I_{L} \times PF P = \sqrt{3} \times V_{L} \times I_{L} \times PF
$$ $$
where: where:
* $P$ is the power in watts, * $P$ is the active power,
* $V_{L}$ is the line voltage, * $V_{L}$ is the line voltage,
* $I_{L}$ is the line current, * $I_{L}$ is the line current,
* $PF$ is the power factor. * $PF$ is the power factor.
The formula for apparent power in a three phase system is given by
$$
S = \sqrt{3} \times V_{L} \times I_{L}
$$
where:
* $S$ is the apparent power,
* $V_{L}$ is the line voltage,
* $I_{L}$ is the line current.
### Voltage Systems ### Voltage Systems
208Y/120V 208Y/120V
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@@ -25,3 +25,8 @@ views:
filters: filters:
and: and:
- '!file.hasTag("authorship")' - '!file.hasTag("authorship")'
- type: table
name: complete-notes
filters:
and:
- file.hasTag("status/complete")
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@@ -11,27 +11,37 @@ title: Birds I've Seen Around Here
--- ---
# Birds I've Seen Around Here # Birds I've Seen Around Here
[List of birds of Florida - Wikipedia](https://en.wikipedia.org/wiki/List_of_birds_of_Florida)
## [Order _Pelecaniformes_](https://en.wikipedia.org/wiki/Pelecaniformes) ## [Order _Pelecaniformes_](https://en.wikipedia.org/wiki/Pelecaniformes)
### [Family _Ardeidae_](https://en.wikipedia.org/wiki/Ardeidae) ### [Family _Ardeidae_](https://en.wikipedia.org/wiki/Ardeidae)
* [great egret](https://en.wikipedia.org/wiki/Great_egret) #### [Genus Ardea](https://en.wikipedia.org/wiki/Ardea_\(bird\))
* [great blue heron](https://en.wikipedia.org/wiki/Great_blue_heron)
* [green heron](https://en.wikipedia.org/wiki/Green_heron)
* [tricolored heron](https://en.wikipedia.org/wiki/Tricolored_heron) * [great egret/great white heron (_A. alba_)](https://en.wikipedia.org/wiki/Great_egret)
* [little blue heron](https://en.wikipedia.org/wiki/Little_blue_heron) * [great blue heron (_A. herodias)](https://en.wikipedia.org/wiki/Great_blue_heron)
* [snowy egret](https://en.wikipedia.org/wiki/Snowy_egret)
#### [Genus Egretta](https://en.wikipedia.org/wiki/Egretta)
* [tricolored heron (_E. tricolor_)](https://en.wikipedia.org/wiki/Tricolored_heron)
* [little blue heron (_E. caerulea_)](https://en.wikipedia.org/wiki/Little_blue_heron)
* [snowy egret (_E. thula)](https://en.wikipedia.org/wiki/Snowy_egret)
#### Other Genus
* [green heron (_Butorides virescens_)](https://en.wikipedia.org/wiki/Green_heron)
### [Family _Threskiornithidae_](https://en.wikipedia.org/wiki/Threskiornithidae) ### [Family _Threskiornithidae_](https://en.wikipedia.org/wiki/Threskiornithidae)
* [American white ibis](https://en.wikipedia.org/wiki/American_white_ibis) * [American white ibis (_Eudocimus albus_)](https://en.wikipedia.org/wiki/American_white_ibis)
* [roseate spoonbill](https://en.wikipedia.org/wiki/Roseate_spoonbill) * [glossy ibis (_Plegadis falcinellus_)](https://en.wikipedia.org/wiki/Glossy_ibis)
* [roseate spoonbill(_Platalea ajaja_)](https://en.wikipedia.org/wiki/Roseate_spoonbill)
## Other Orders ## Other Orders
* [wood stork (_Ciconiidae Mycteria americana_)](https://en.wikipedia.org/wiki/Wood_stork) * [wood stork (_Ciconiiformes Ciconiidae Mycteria americana_)](https://en.wikipedia.org/wiki/Wood_stork)
* [anhinga (_Anhingidae Anhinga anhinga_)](https://en.wikipedia.org/wiki/Anhinga) * [anhinga (_Suliformes Anhingidae Anhinga anhinga_)](https://en.wikipedia.org/wiki/Anhinga)
* [mallard (_Anatidae Anas platyrhynchos_)](https://en.wikipedia.org/wiki/Mallard) * [mallard (_Anseriformes Anatidae Anas platyrhynchos_)](https://en.wikipedia.org/wiki/Mallard)
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@@ -88,6 +88,8 @@ are in contradiction to this idea.
Given a minimum ampacity, find all valid configurations. Given a minimum ampacity, find all valid configurations.
[[nfpa-70_310_conductors_for_general_wiring]]
> [!cite] NEC Article 310 (emphasis added) > [!cite] NEC Article 310 (emphasis added)
> #### 310.10(H) Conductors in Parallel. > #### 310.10(H) Conductors in Parallel.
> ##### (1) General. > ##### (1) General.
@@ -162,31 +164,31 @@ $$
> [!info] 3-Phase Voltage > [!info] 3-Phase Voltage
> >
> $$ > $$
> V_{LL} = \sqrt{3} \times V_{LN}, \quad V_{LN} = \frac{V_{LL}}{\sqrt{3}} > V_{L} = \sqrt{3} \times V_{P}, \quad V_{P} = \frac{V_{L}}{\sqrt{3}}
> $$ > $$
3% allowable voltage drop for a 120V line-to-neutral load: 3% allowable voltage drop for a 120V line-to-neutral load:
$$ $$
\text{Max} \Delta V = 0.03 \times 120 \text{V}_{LN} = 3.6 \text{V}_{LN} \text{Max} \Delta V = 0.03 \times 120 \text{V}_{P} = 3.6 \text{V}_{P}
$$ $$
3% allowable voltage drop for a 208V line-to-line load: 3% allowable voltage drop for a 208V line-to-line load:
$$ $$
\text{Max} \Delta V = 0.03 \times 208 \text{V}_{LL} = 6.24 \text{V}_{LL} \text{Max} \Delta V = 0.03 \times 208 \text{V}_{L} = 6.24 \text{V}_{L}
$$ $$
#### Line to Neutral Loads #### Line to Neutral Loads
$$ $$
\Delta V_{LN} = I \times Z \times 2L \Delta V_{P} = I \times Z \times 2L
$$ $$
#### Line to Line Loads #### Line to Line Loads
$$ $$
\Delta V_{LL} = \sqrt{3} \times \left( I \times Z \times 2L \right) \Delta V_{L} = \sqrt{3} \times \left( I \times Z \times 2L \right)
$$ $$
#### 3-Phase Loads #### 3-Phase Loads
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@@ -95,7 +95,7 @@ If PVC is required, use following assemblies:
### Homeruns ### Homeruns
> `System` = "EL - Electrical" > * `System` = "EL - Electrical"
Use 1 Homerun for every 3 circuits in Garage Use 1 Homerun for every 3 circuits in Garage
@@ -195,7 +195,7 @@ round up to the nearest 5ft
## Facade ## Facade
> `Phase` = "Facade" > * `Phase` = "Facade"
Length and Labor will be more than a normal fixture in BOH/Amenity Length and Labor will be more than a normal fixture in BOH/Amenity
@@ -216,32 +216,44 @@ Create its own breakout in WBS, and phase in Accubid
## Site & Courtyard ## Site & Courtyard
> [!important]
> Coordinate with landscape
### Breakdowns ### Breakdowns
> System: "FML - Site Fixtures Material & Labor" > * `System` = "FML - Site Fixtures Material & Labor"
### Fixture Assemblies ### Pole Lights
| Fixture Type | Assembly Path | `FIXTURE ACCESSORIES`/`SITE POLE ASSEMBLIES`/...
| ------------------------------------ | --------------------------------------------------------------------------------------- |
| Step Light | `COURTYARDS & LANDSCAPE`/`STEP FIX, 3/4" CONDUIT - PVC40 - ...` |
| Bollard | `COURTYARDS & LANDSCAPE`/`BOLLARD, 3/4" CONDUIT - PVC40 - ...`[^1] |
| Up-light | `COURTYARDS & LANDSCAPE`/`PERMA POST, 3/4" CONDUIT - PVC40 - ...` |
| In-grade up-light | `COURTYARDS & LANDSCAPE`/`3/4" CONDUIT - PVC40, IMC Elbow, ...` |
| Fixtures built into cabanas/pergolas | `COURTYARDS & LANDSCAPE`/`ALUM BOX W/ FLEX FIX, 3/4" CONDUIT - PVC40 - ...` |
| Handrail light | `COURTYARDS & LANDSCAPE`/`ALUM BOX W/ FLEX FIX, 3/4" CONDUIT - PVC40, IMC ELBOW - ...` |
[^1]: If we don't own concrete, delete Pre-cast bollard base from assembly Add subassemblies for stub-outs, pole, base, and grounding as appropriate.
### Festoon Lighting ### Festoon Lighting
> AKA "string" or "market" lights > [!info] Also Known As
> * string lighting
> * market lighting
> * catenary lighting
> 1. `FIXTURE LABOR`/`FIXTURE LABOR 2HR` > 1. `FIXTURE LABOR`/`FIXTURE LABOR 2HR`
> 2. `FESTOON & ROOF ASSEMBLIES`/`FESTOON CABLE HANGER & EYE BOLTS - LENGTH` > 2. `FESTOON & ROOF ASSEMBLIES`/`FESTOON CABLE HANGER & EYE BOLTS - LENGTH`
> * `Length per Unit` = Light string length > * **Length per Unit** = Light string length
> 3. `COURTYARDS & LANDSCAPE`/`ALUM BOX W/ FLEX FIX, 3/4" CONDUIT - PVC40 - ...` > 3. `COURTYARDS & LANDSCAPE`/`ALUM BOX W/ FLEX FIX, 3/4" CONDUIT - PVC40 - ...`
> * `Length per Unit` = Distance to panel + 15ft > * **Length per Unit** = Distance to panel + 15ft
### Other Fixture Types
| Fixture Type | Path (`FIXTURE ACCESSORIES`/`COURTYARDS & LANDSCAPE`/...) |
| ------------------------------------ | ------------------------------------------------------------------ |
| Step Light | .../`STEP FIX, 3/4" CONDUIT - PVC40 - ...` |
| Bollard | .../`BOLLARD, 3/4" CONDUIT - PVC40 - ...`[^1] |
| Up-light | .../`PERMA POST, 3/4" CONDUIT - PVC40 - ...` |
| In-grade up-light | .../`3/4" CONDUIT - PVC40, IMC Elbow, ...` |
| Fixtures built into cabanas/pergolas | .../`ALUM BOX W/ FLEX FIX, 3/4" CONDUIT - PVC40 - ...` |
| Handrail light | .../`ALUM BOX W/ FLEX FIX, 3/4" CONDUIT - PVC40, IMC ELBOW - ...` |
[^1]: If we don't own concrete, delete Pre-cast bollard base from assembly
## FAA Lighting ## FAA Lighting
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@@ -0,0 +1,31 @@
---
id:
aliases: []
tags:
- authorship/original
- destiny/fleeting
- status/incomplete
- topic/construction/electrical
- type/encyclopedia
title: "Ohm's Law"
---
# Ohm's Law
The formula for voltage $V$ is given by Ohm's Law:
$$
V = I \times R
$$
The formula for power $P$ is given by:
$$
P = I \times V
$$
$$
\begin{align*}
P &= I \times (I \times R) \\
&= I^{2}R
\end{align*}
$$
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@@ -2,11 +2,11 @@
id: id:
aliases: [] aliases: []
tags: tags:
- authorship/original
- destiny/permanent - destiny/permanent
- occupational/takeoff/units - occupational/takeoff/units
- status/draft - status/draft
- type/guide - type/guide
- authorship/original
title: Unit Takeoff title: Unit Takeoff
--- ---
# Unit Takeoff # Unit Takeoff
@@ -49,6 +49,10 @@ Include terminations per [[switchgear]].
### Shade Control ### Shade Control
### VTAC Units
Used in lieu of individual split systems.
### Dedicated Circuit Receptacles ### Dedicated Circuit Receptacles
For N5-15R/N5-20R receptacles serving fixed equipment such as: For N5-15R/N5-20R receptacles serving fixed equipment such as: