155 lines
3.4 KiB
Markdown
155 lines
3.4 KiB
Markdown
---
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title: Electrical Takeoff
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tags:
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- occupational/takeoff
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- status/draft
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- type/guide
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up: "[[takeoff-scripts]]"
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aliases:
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- electrical takeoff
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---
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# Electrical Takeoff
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> [!important]
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> Complete [[pre-takeoff-research]],
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> including [[wiring-method-selection]] and [[wiring-device-research]],
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> before beginning takeoff.
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> [!tip]
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> Use [[heating-designations]] for uncertain scope.
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## Garage
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In conventional slab garages,
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use ENT and PVC as permitted.
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In precast slab garages, use EMT.
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## Receptacles
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> [!important]
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> Receptacle symbols are not standard.
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> Always check the electrical legend.
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## Floor Boxes
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`COMMON ASSEMBLIES`/`FLOOR BOXES`/...
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### Poke-Thru's
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Use suitable floor box assembly,
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delete floor box items,
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add `ITEM DATABASE`/`WIRING & SYSTEM DEVICES`/`FLOOR BOXES & FITTTINGS`/`GENERIC - FLOOR BOXES & ACCESS`/`POKE-THRU W/ DUPLEX RECEPTACLE`
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## Homeruns
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### Lighting Homeruns
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* `Area` = "XX - Level XX Building"
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* `Phase` = "Building - Back of House (BOH)"
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Takeoff homeruns in Building breakdowns,
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even where serving Amenity spaces.
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## Mechanical Connections
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### General
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`COMMON ASSEMBLIES`/`MECHANICAL CONNECTIONS ...`/...
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When using length-based assemblies use adders per [[feeders-takeoff]].
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%% TODO
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#### PVC Connection Assemblies
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#### Flex
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[[wiring-method-selection#Liquidtight Flex]]
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%%
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### Stair Pressurization Fans
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Assume branch circuit conductors must be protected
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per [[fire-resistive-wiring-methods-takeoff]].
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### Roof Mounted Equipment
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#### Unit Condensing Units
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##### Homeruns
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* `Area` = _Match unit_
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.../`CONDENSOR HOME RUNS`
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* **Horizontal:** Distance from load center to FCU.
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(~50ft expected)[^1]
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* **Vertical:** floor-to-floor distance from FCU to CU
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[^1]: [[2026-05-04_14-57-49#Unit Condensing Units]]
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| Level | Horizontal | Vertical | Length |
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| :------- | ---------: | -------: | -----: |
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| Level 01 | 150 | 40 | 190 |
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| Level 02 | 150 | 30 | 180 |
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| Level 03 | 150 | 20 | 170 |
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| Level 04 | 150 | 10 | 160 |
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##### Connections
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* `Area` = _Match CU (usually roof)_
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.../`CU CONDENSER SLEEVE W/ FLEX - NO HMRN WIRE`
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`NO SLEEVE`:
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Routed through a "doghouse"
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(a large weatherproof opening)
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with several other feeds.
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Used where drilling openings for individual sleeves
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would be impractical.
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`PVC SLEEVE`, `EMT SLEEVE`:
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Routed up through the roof,
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(optionally through a disconnect)
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with flex to the equipment.
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#### Equipment Racks
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Max 20 disconnects per rack
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`DISTRIBUTION`/`TRAPEZE RACK SUPPORT ...`/...
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## Trash Chute
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1. **Horizontal:**
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`COMMON ASSEMBLIES`/`MECHANICAL CONNECTIONS ...`/...
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* **Length** = Length per drawings, 100ft if not shown.
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2. **Vertical (Riser):**
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* `Area` = "Typical - Building All Levels"
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Takeoff: `COMMON ASSEMBLIES`/`MISC ASSEMBLIES`/`TRASH CHUTE RISER CIRCUIT...`
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* **Length** = average floor to floor height
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## Fire/Smoke Dampers
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[[fire-alarm-takeoff#Fire/Smoke Dampers (FSD's)]]
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## Clubline Raceway
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[Raceway Systems - CRG](https://crg.us.com/products/raceway-systems/)
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Clubline Raceway, also called CRG Raceway,
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is a glorified cable management trough.
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It is not a [[nfpa-70_376|wireway]],
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so conductors must be run in a [[nfpa-70_national-electric-code#Chapter 3 Wiring Methods and Materials|Chapter 3]] wiring method.
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Count receptacles normally,
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using ==surface-mount EMT assemblies==.
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Create a temporary item for the raceway itself.
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