In real-world cable trench environments, the more complex the tooling, the higher the on-site coordination costs tend to be.
Installers must complete the installation of the connector, bolt tightening, and the reassembly of subsequent accessories within a confined space. In such an environment, failing to bring a specific tool or neglecting to verify a die set can directly impact construction efficiency.
Traditional crimping methods typically require hydraulic crimping tools and matching dies for specific conductor cross-sections. For a project site, this entails not only tool costs but also the complexities of die management, tool maintenance, transportation, personnel training, and the risk of delays caused by mismatched components.
This is precisely where the SUNJ shear bolt connector offers real value in the field.
It reduces reliance on hydraulic crimping tools and multiple sets of dies. Installers use specified tools for tightening and follow the instructions to verify the conductor cross-section range, insertion depth, internal spacer status, and bolt tightening sequence.
However, a crucial point must be clarified:
The shearing of the bolt does not mean the connector can be installed haphazardly.
The shearing off of the bolt head indicates that the installation step meets design requirements *only* when the conductor type matches, the spacer is correctly positioned, the conductor is fully inserted, and the bolts are tightened in the sequence specified in the instructions.
Ignoring the instructions or arbitrarily altering the tightening sequence can lead to issues such as uneven stress distribution on the conductor, cable deformation, abnormal stress on the threads, or even stripped bolt threads.
In short, mechanical connectors reduce the complexity associated with dies, hydraulic tools, and inventory management.
However, they do not eliminate the need for a correct installation process.
For procurement managers, this means reduced SKU pressure and lower tooling costs. For installation teams, it clarifies the installation logic—provided that the fundamental requirements are met: following the instructions, tightening in the correct sequence, and ensuring the bolts shear off as required.
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