zmVault/lightning-protection.md

id, aliases, tags

id	aliases	tags
		occupational/systems/lightning-protection

Lightning Protection

Info

Early Streamer Emission (ESE)

Estimate Scope

May or may not be included, see proposal on 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