Engineers Corner | Harger Lightning and Grounding
To aid engineering firms and specification designers, we have assembled a filterable collection of generic installation details and relevant specification sections. Please contact us if you have any
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Practices for grounding and bonding of cable trays
All metallic cable trays shall be grounded as required in Article 250.96 regardless of whether or not the cable tray is being used as an equipment grounding conductor (EGC). The EGC
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How to Check if Your Cable Trays are Grounded and Safe
Learn how to verify the safety of your electrical systems with our guide on testing cable tray grounding, ensuring full compliance and effective lightning protection.
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Cable Tray Grounding: Power, Instrumentation, and Telecommunications
Where cable tray systems contain only signal and communication circuits that operate at low energy levels, power grounding per NEC Section 318-7 is not appropriate, but cable tray grounding for
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Explaining NEC Article 250 on Grounding and Bonding
NEC (National Electrical Code) Article 250 covers grounding and bonding for electrical installations to protect from electrical shock and ensure correct operation of the electrical system.
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Understanding Cable Tray Grounding: A Comprehensive Guide
Protection against lightning strikes: Grounding cable trays can help dissipate the energy from lightning strikes, safeguarding the electrical system and connected equipment from potential
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Practices for grounding and bonding of cable trays
If an EGC cable is installed in or on a cable tray, it should be bonded to each or alternate cable tray sections via grounding clamps (this is not required by the NEC® but it is a desirable practice).
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ARTICLE 250 GROUNDING AND BONDING
Failure to ground metal parts can result in high voltage from an indirect lightning strike seeking a path to the earth within the building, possibly resulting in a fire and/or electric shock.
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Grounding and Lightning Protection
We''re your complete source for grounding and lightning protection components, including coaxial lightning protectors, coax shield grounding kits, copper grounding straps, grounding plates and
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Lightning Protection Grounding And Surge Control
When tens of kiloamps enter bonded steel, cable trays, and grounded neutrals, system impedance determines whether energy flows to earth through a lightning protection system or through
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.