90 lines
1.9 KiB
Markdown
90 lines
1.9 KiB
Markdown
---
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id: electrical
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aliases: []
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tags:
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- authorship/original
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- destiny/permanent
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- occupational/takeoff/electrical
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- status/draft
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- type/guide
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title: 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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## Lighting Control
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By PDI convention, [[lighting-controls-takeoff]] are generally "Electrical", not "Lighting".
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## Receptacles
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## Floor Boxes
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### Poke-Thru's
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## Homeruns
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### Lighting
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Takeoff homeruns in Building breakdowns,
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even serving Amenity spaces.
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> [!info] Breakdowns
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> * `Area` = "... Building"
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> * `System` = "Building - BOH ..."
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## Mechanical Connections
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`COMMON ASSEMBLIES`/`MECHANICAL CONNECTIONS ...`/...
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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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Put homeruns on the `Area` of the dwelling unit.
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Put connections on the `Area` of the CU.
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.../`CONDENSOR HOME RUNS`
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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: Max 20 disconnects per rack
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`DISTRIBUTIION`/`TRAPEZE RACK SUPPORT ...`/`...`
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### Trash Chute
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**Horizontal:**
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* Check if shown on power drawings as mech connection
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* If not, use 100ft length
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**Vertical (Riser):**
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* Takeoff: `COMMON ASSEMBLIES`/`MISC ASSEMBLIES`/`TRASH CHUTE RISER CIRCUIT...`
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* Uncheck Link 'Enable Livecount'
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* Takeoff in Typical
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* Length = average floor to floor height
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