3.4 KiB
title, tags, up, aliases
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Electrical Takeoff
Important
Complete pre-takeoff-research, including conest-wiring-method-selection and conest-wiring-device-research, before beginning takeoff.
Tip
Use heating-designations for uncertain scope.
Garage
In conventional slab garages, use ENT and PVC as permitted.
In precast slab garages, use EMT.
Receptacles
Important
Receptacle symbols are not standard. Always check the electrical legend.
Floor Boxes
COMMON ASSEMBLIES/FLOOR BOXES/...
Poke-Thru's
Use suitable floor box assembly,
delete floor box items,
add ITEM DATABASE/WIRING & SYSTEM DEVICES/FLOOR BOXES & FITTTINGS/GENERIC - FLOOR BOXES & ACCESS/POKE-THRU W/ DUPLEX RECEPTACLE
Homeruns
Lighting Homeruns
Area= "XX - Level XX Building"Phase= "Building - Back of House (BOH)"
Takeoff homeruns in Building breakdowns, even where serving Amenity spaces.
Mechanical Connections
General
COMMON ASSEMBLIES/MECHANICAL CONNECTIONS .../...
When using length-based assemblies use adders per feeders-takeoff.
%% TODO
PVC Connection Assemblies
Flex
conest-wiring-method-selection#Liquidtight Flex
%%
Stair Pressurization Fans
Assume branch circuit conductors must be protected per fire-resistive-wiring-methods-takeoff.
Roof Mounted Equipment
Unit Condensing Units
Homeruns
Area= Match unit
.../CONDENSOR HOME RUNS
-
Horizontal: Distance from load center to FCU. (~50ft expected)1
-
Vertical: floor-to-floor distance from FCU to CU
| Level | Horizontal | Vertical | Length |
|---|---|---|---|
| Level 01 | 150 | 40 | 190 |
| Level 02 | 150 | 30 | 180 |
| Level 03 | 150 | 20 | 170 |
| Level 04 | 150 | 10 | 160 |
Connections
Area= Match CU (usually roof)
.../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
DISTRIBUTION/TRAPEZE RACK SUPPORT .../...
Trash Chute
-
Horizontal:
COMMON ASSEMBLIES/MECHANICAL CONNECTIONS .../...- Length = Length per drawings, 100ft if not shown.
-
Vertical (Riser):
Area= "Typical - Building All Levels"
Takeoff:
COMMON ASSEMBLIES/MISC ASSEMBLIES/TRASH CHUTE RISER CIRCUIT...- Length = average floor to floor height
Fire/Smoke Dampers
fire-alarm-takeoff#Fire/Smoke Dampers (FSD's)
Clubline Raceway
Clubline Raceway, also called CRG Raceway, is a glorified cable management trough. It is not a nfpa-70_376, so conductors must be run in a nfpa-70_national-electric-code#Chapter 3 Wiring Methods and Materials wiring method.
Count receptacles normally, using ==surface-mount EMT assemblies==.
Create a temporary item for the raceway itself.