---
id:
aliases: []
tags:
  - occupational/systems/lightning-protection
  - type/guide
---
# Lightning Protection

## Info

### Early Streamer Emission (ESE)

## Estimate Scope

May or may not be included, see proposal on [[bpm|BPM]]

### Subcontractors

Find lightning protection subcontractor quotes on BPM

> [!tip]
> While you have them open, put the quote costs in Accubid.

Search the quotes for direction on downlead counts, total length, and conduit size

> [!example]
> Contractor to furnish 1,980' of 1" PVC conduit and pull string

If no quote is available:

* **Downlead locations** = building corners + additional locations
  such that downlead spacing is not greater than 100ft
  * Minimum 10 locations for High Rise

* **Total downlead conduit length** = building height * downlead locations

* **Conduit size** = 1-1/4"

### Takeoff

```
Area = "Lightning Protection" // confirm
Phase = "Building - BOH, Storage & Common"
System = "LPT - Lightning Protection"
BidItem = "3 - Building"
```

* Takeoff: `COMMON ASSEMBLIES`/`PDI EMPTY CONDUIT`/`PVC ASSEMBLIES`/`* CONDUIT - PVC40`
  * **Length** = total downlead conduit length
  * **Count** = downlead locations

  * Add item: `ITEM DATABASE`/`BOXES & CABINETS`/`JUNCTION BOXES AND INDUSTRIAL CABINETS`/
    `BOXES - HNGD CVR - PAINTED STEEL - NEMA  1`/` 6x  4x  4" BOX HNGD CVR - NEMA  1`
