Section 232 Tariffs Explained: Steel and Aluminum Import Duties in 2026
Section 232 tariffs on steel (50%) and aluminum (50%) imports for US importers. Country exemptions, derivative products, quota agreements, and how US importers calculate duties in 2026.
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NEC Article 392: Cable Tray Systems
It provides rules for acceptable wiring methods that can be installed in cable trays, including conditions for use. It addresses uses permitted and not permitted for cable trays.
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Cable Tray Fill Rules (NEC 392)
This guide covers the cable tray types and their appropriate applications, the fill rules for each configuration, ampacity derating requirements, separation of power and signal cables, and the
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Cable Tray Manual: NEC Article 392 Guide
In-depth guide to cable trays, focusing on NEC Article 392. Covers types, selection, installation, and safety standards for electrical systems.
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NEC Article 392 Guide: Ensuring Compliance for Cable Tray Systems
Strong hangers or brackets should be used to ensure that cable trays do not fall or hang. According to the regulations under NEC 392.30, these supports have to be put at a consistent
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Codes and Standards | Cable Tray Institute
The Cable Tray Institute is making available the current edition of this practical guide for the proper installation of aluminum or steel cable tray systems. These guidelines will be useful to engineers,
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Section 232 Tariffs on Steel and Aluminum Frequently Asked Questions
Steel derivative products classified in one of the new HTS classifications subject to Section 232 steel duties on or after March 12, 2025 are exempt from Section 232 steel duties if they are manufactured
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Notice to importers: Item 82 – Steel goods – Serial No. 1142
The quota for steel goods originating from non-CUSMA FTA partners will be administered under a transitional measure with pro-rated quantities during the first quota period.
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NEC Article 392: Cable Tray Systems
It provides rules for acceptable wiring methods that can be
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Cable Tray Installation Guide | PDF | Corrosion
It discusses cable tray definitions, standards, types of cable trays, materials and finishes, installation guidelines, National Electrical Code and Canadian Electrical
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Tariff Rate Quotas Are Gone. What Does That Mean for | Ulbrich
Under a TRQ, a specific quantity of a product—such as stainless steel—is allowed to enter the U.S. at a lower or zero tariff rate. Once that quota is exceeded, any additional imports face higher tariff rates.
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Cable Tray Installation Guide | PDF | Corrosion | Stainless Steel
It discusses cable tray definitions, standards, types of cable trays, materials and finishes, installation guidelines, National Electrical Code and Canadian Electrical Code requirements, and appendices on
View moreLaser Diodes & VCSEL
High-power CW/pulsed laser diodes (808nm–1550nm) and VCSEL arrays for 3D sensing, LIDAR, and optical interconnects.
Silicon Photonics & CPO
Co-packaged optics engines, silicon photonics ICs, and optical I/O solutions for high-density switches and AI clusters.
Optical Transceivers & AOCs
400G/800G QSFP-DD/OSFP modules, active optical cables, and custom optical engines for data center interconnects.
Laser Drivers & CDR
Low-jitter laser drivers, integrated CDR circuits, and linear TIAs for coherent optics and short-reach links.