Custom Cable Assembly
Custom MC4 Jumpers and PV Home Runs for Solar Farms: How to Spec, Order and Label Them
What custom solar assemblies we build, how to spec connector, conductor, length and labeling, and how to send a cut list so jumpers and home runs ship built, labeled and kitted.
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RG6 Quad Shield vs Dual Shield, Bare Copper vs CCS: Coax That Holds Up
Quad vs dual shield, bare copper vs copper-clad steel for DC-powered runs, compression connectors and NEC 820 ratings.
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Cat6 Bare Copper vs CCA, Riser vs Plenum: Choosing Cable That Actually Carries PoE
Bare copper vs CCA for PoE, riser vs plenum, distance limits for 1G and 10G, and when to order Cat6 made to length.
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How to Specify Lugged Battery, Inverter and Busbar Leads
Conductor, lug, die, stud size, pull test and finish: how to specify DC leads between combiners, inverters, batteries and busbars.
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Factory-Built vs Field-Crimped MC4 Jumpers: Where Terminations Fail and How to Avoid It
Why MC4 field terminations fail, how a factory jumper is crimped and tested, and when ordering to length beats crimping on the roof.
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UL 4703 PV Wire vs USE-2 vs THHN: What the Jacket Markings Mean
What each listing on a solar cable jacket means, where it is allowed, and why THHN does not belong in an exposed array.
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PV Wire Size Guide: 12 vs 10 vs 8 vs 6 AWG for Solar Strings and Home Runs
NEC 690.8 design current, ampacity and voltage drop for 12, 10, 8 and 6 AWG copper PV wire, with worked numbers for real string runs.
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