Technical Resources
Ordering Custom Cable Assemblies for Data Centers, BESS and Switchgear
A procurement guide to ordering custom cable assemblies for data center, BESS and switchgear projects, covering part numbers, drawings, quality documents, labeling, kitting, PO terms and agent-assisted purchasing.
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Custom MC4 Solar Leads: Why Not to Mix Connector Brands (NEC 690.33)
Explains the NEC 690.33(C) intermatability rule for PV connectors, compares four connector families using published data sheet figures, and covers PV wire, lengths, labeling and kitting for EPC projects.
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DLO vs THHN vs Bare Copper Jumpers: Which Conductor and Lug to Use
Compares DLO, THHN/THWN-2 and bare copper jumpers by stranding class, ratings, flexibility and application, and explains why fine-strand DLO requires lugs identified for its conductor class.
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How to Specify a Custom DLO Lug Jumper: Gauge, Lugs, Length, Tolerance
A line-by-line specification guide for custom DLO lug jumpers, from NEC 310.16 ampacity basis and fine-strand lug requirements to length convention, tolerance and documentation, with a spec checklist.
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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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Solar Farm Electrical Hardware: What a Utility Scale PV Project Buys, From Module to Substation
The electrical balance of system hardware a 1500 V solar farm needs, stage by stage from module strings to the substation, and the spec points that decide whether the array passes commissioning.
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Powering a Data Center: Connectors, Grounding and Power Distribution Hardware From Utility Service to Rack
The connector, grounding and power distribution hardware a data center needs at every stage of the power path, with the spec points engineers check and crosses to the brands in most specs.
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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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