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OPERATIONAL TECHNOLOGY
DC Trunk Bus

Terabase has developed an innovative solution for DC Collection System called “Trunk Bus” that is field configurable and reduces both material and labor costs. The solution is optimized for PV modules from First Solar and other suppliers. The trunk bus has been fielded over 2 GW of PV plants and has achieved all performance goals and reliability.

Trunk Bus: A Cost Effective & Simple DC Solution

The Trunk Bus simplifies utility scale PV wiring design by offering an efficient, standardized aggregation of PV modules up to 1500V that is compliant with applicable UL standards. This innovative design lowers costs by reducing design time, on-site installation labor, wire management, and overall wire cost. It is applicable for modules supplied by First Solar as well as other manufacturers.

Plastic Wire Coils

Superior DC Wiring

 

Up to 50% less labor compared to conventional jumper and whip installation. Eliminates redundant jumper and harness wire within rows. Reduces wire management and overall wire cost. Supports longer rows and larger arrays to drive down system costs with improved DC losses.

man and pannels

Flexible Design that is Easy to Implement

 

Reduces field errors with standardized parts and repeatable processes. Simplifies DC design and supported well honed engineering best practices. Facilitates equipment tracking and diagnostics with fewer unique components.

House Plan

Meets Industry Certification for Ease of Permitting

 

Issued with NRTL recognized TUV-US mark, UL 9703. Extensive testing
for up to 1500V architectures. Backed by Limited Materials and Workmanship Warranty.

Solution Components

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The Insulation Piercing
Connector (IPC) provides a fast, easy to install and reliable method of connection between the harness and trunk cables.

The Splice cover provides the only available, UL listed for PV applications, method for connecting DC cables of similar or dissimilar sizes. Essential for cable repair.

The Insulation Piercing
Connector (IPC) provides a fast, easy to install and reliable method of connection between the harness and trunk cables.

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The End Cap terminates any open ended trunk cables. It meets the same safety requirements of the splice cover.

Product Demo Videos

Cable Hanger Clamp, 1-man Installation
Messenger Cable Installation

Terabase DC Trunk Bus versus Competitors

Our Offering: NORTH-SOUTH Trunk Bus
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Competitors: EAST-WEST Trunk Bus
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