⚡ IEEE 485 (Inter-Tier Heavy Copper Straps, Millivolt Drop <10 mV @ 1,000A Discharge)

UPS Battery Inter-Tier Cable Calculator

Size flexible copper inter-tier and inter-rack power cables connecting multi-tier UPS battery strings under IEEE Standard 485 & NEC Article 480: calculate DC millivolt drop (<10 mV across inter-cell connection hardware under 1,000A short-duration discharge), prevent unequal cell loading and premature string cut-off, and DC power contracting yields.

1. Project & Operating Inputs

Battery String Discharge Rate (Amps DC e.g. 850A Peak Inverter Load)

Total Inter-Tier Cable Run Length (Feet e.g. 18.0 ft Copper Bus/Cable)

Customer Bid Price for Supplied & Torqued Inter-Tier Cable Assembly ($)

Dual 500 kcmil DLO Flexible Cable, Tinned Copper Lugs, Master Electrician ($)

2. Financial Breakdown & Yield

IEEE 485 BATTERY STRAPS

Turnkey UPS Battery Cabling Profit

DC Power Distribution Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost