---
id: feeders
aliases: []
tags:
  - authorship/original
  - destiny/permanent
  - occupational/takeoff
  - status/draft
  - type/guide
title: Feeders Takeoff
dg-publish: true
---
# Feeders Takeoff

> [!important]
> Complete [[pre-takeoff-research]],
> including [[wiring-method-selection]],
> before beginning takeoff.

## Execution

### Formatting

All feeder takeoff descriptions should be prefixed with `<parent> TO <child>`

> [!cite] Joel Jansen, in reference to Omni Hotels Raleigh (pp.)
> It is acceptable to use typicals for identical feeders
> (i.e. meter centers fed from bus plugs)
> so long as the typical is in `Area` = "01 - Feeders/Risers ...".

### Routing

Run parallel to building lines
and route through corridors where possible.

> [!important]
> All takeoffs in Systems with names including "site"
> should be in "Site" Area, Phase, and Bid Item breakdowns.

For adjacent panels, use a minimum 10ft length.

#### Adders

Use the difference in elevation between equipment
or 10ft, whichever is greater.

Add an additional 5ft (total 15ft) for site runs
(primaries, secondaries, etc.).

## Primaries

* `Area` = "2 - Site"
* `Phase` = "Site"
* `System` = "PRI - Primaries"

Usually only empty conduit if included.

## Secondaries

* `Area` = "2 - Site"
* `Phase` = "Site"
* `System` = "SEC - Secondaries"

### Wiring on Vault Racks

Where secondary conductors run on racks in utility vaults
manually set the length of conduit,
measure the wire length,
add 20ft in addition to previously mentioned adders.

## Feeders

* `Area` = "01 - Feeders/Risers Building"
* `Phase` = "Feeders"
* `System` = "FRR - Feeders and Risers"

> [!info] Garage Feeders
> `Area` "01 - Feeders/Risers Garage" is seldom used.
> It may be appropriate for totally separate parking garage buildings.
> Seek clarification before using.

## Bus Duct

`COMMON ASSEMBLIES`/`DISTRIBUTION`/`BUS DUCT`/...

## Conductor Support

![[nfpa-70_300_general-requirements#300.19(A) Spacing Intervals --- Maximum.]]

`ITEM DATABASE`/`CONDUIT & FITTINGS`/`CABLE SUPPORT / WEDGES`/`... COMPLETE FITTING`/...

## Grounding

See [[grounding-takeoff]].

## Sleeving

See [[sleeving-takeoff]].
