Cable Bracket Assembly Grounding for Sealed Enclosures
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Solution Overview
Problem
There is a need for improved grounding solutions in telecommunications enclosures that allow for individual electrical isolation and grounding of fiber optic cables without disrupting the enclosure's sealed environment, as existing solutions often require entering the enclosure and may not provide adequate accessibility for toning or maintenance.
Innovation Solution
A cable bracket assembly that includes a metal sheet with a base member, strength member fixation mount, and cable fixation mounts, allowing for secure attachment and individual grounding of each fiber optic cable, while providing an electrical passage to the outside of the enclosure for grounding without opening it, using conductive materials and clamping mechanisms to ensure secure connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional grounding solutions are used in telecommunications enclosures, then grounding can be provided, but the enclosure must be opened to access grounding points, disrupting the sealed environment and requiring entry into the enclosure
Solution Approach 1:
The grounding system is segmented into individual cable bracket assemblies, each independently grounding specific cables. This allows selective grounding access without opening the entire enclosure, maintaining the sealed environment while providing accessible grounding points for toning and maintenance operations.
Solution Approach 2:
The cable bracket assembly acts as an intermediary component that bridges the enclosed sealed environment and the external grounding requirements. It provides grounding access through the enclosure wall without requiring the enclosure to be opened, thus maintaining the sealed environment while enabling reliable grounding.
2Ease of operation
If individual cable grounding is implemented, then electrical isolation and accessibility are improved, but the device complexity increases due to multiple cable bracket assemblies
Solution Approach 1:
Each cable bracket assembly is designed as a universal component that can accommodate different cable types and configurations. The same basic bracket design serves multiple functions: mechanical cable support, electrical grounding, and isolation. This multi-functionality reduces the need for specialized components while maintaining individual cable accessibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables individual electrical isolation and grounding of fiber optic cables within the enclosure, maintaining the sealed environment and providing accessible grounding points for toning and maintenance without opening the enclosure, enhancing the reliability and accessibility of the telecommunications system.
Implementation Method 1
One or more sealing blocks (e.g., gel blocks) housed in one of the housing pieces can be compressed against corresponding sealing blocks in another housing piece to form a seal therebetween
Implementation Method 2
A cable bracket assembly that includes a metal sheet with a base member, strength member fixation mount, and cable fixation mounts, allowing for secure attachment and individual grounding of each fiber optic cable
Data Source
AI summary
The present disclosure relates to grounding assemblies for cables entering telecommunications enclosures. The grounding assemblies include a grounding attachment interface, a strength member fixation mount, and first and second cable fixation mounts that are electrically coupled together to ground strength members and a conductive shield of a cable.