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id, aliases, tags, title
id aliases tags title
electrical
destiny/permanent
occupational/systems/electrical
status/draft
type/guide
Electrical

Electrical

Info

Lighting Control

By PDI convention, lighting-controls are generally "Electrical", not "Lighting".

Sequence

1. Preparation

pre-takeoff-research#Wiring Device Selection

  1. Read about the project specifications and construction type
  2. Locate Equipment Schedules

2. Takeoff

  1. Takeoff all equipment that is not #12
  2. Go by Drawing in chronological order
  3. Takeoff Enlarged Drawings
  4. Do final checklist in electrical takeoff notes

Tip

It is sometimes easier to rebuild a designation than to modify it. For designations with existing takeoffs, Right-Click > Empty Designation. The build process can then be completed anew.

Receptacles

Floor Boxes

Mechanical Connections

COMMON ASSEMBLIES/MECHANICAL CONNECTIONS .../

Roof Mounted Equipment

Unit condensing units

Put homeruns on the Area of the dwelling unit. Put connections on the Area of the CU.

.../CONDENSOR HOME RUNS

.../CU CONDENSER SLEEVE W/ FLEX - NO HMRN WIRE

NO SLEEVE: Routed through a "doghouse" (a large weatherproof opening) with several other feeds. Used where drilling openings for individual sleeves would be impractical.

PVC SLEEVE, EMT SLEEVE: Routed up through the roof, (optionally through a disconnect) with flex to the equipment.

Equipment Racks: Max 20 disconnects per rack

DISTRIBUTIION/TRAPEZE RACK SUPPORT .../...

Trash Chute

Horizontal:

  • Check if shown on power drawings as mech connection
    • If not, use 100ft length

Vertical (Riser):

  • Takeoff: COMMON ASSEMBLIES/MISC ASSEMBLIES/TRASH CHUTE RISER CIRCUIT...
  • Uncheck Link 'Enable Livecount'
  • Takeoff in Typical
    • Length = average floor to floor height

Homeruns

Lighting

Takeoff homeruns in Building breakdowns, even serving Amenity spaces.

[!info] Breakdowns

  • Area = "... Building"
  • System = "Building - BOH ..."

3. Review

  1. Count Car chargers and location