Field-Modifiable Electrical Connector Lugs With Guide Features
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electrical connectors with modifiable lugs face regulatory compliance issues when modified in the field, as changes to lug size or hole configuration can void approvals from bodies like UL and NFPA.
Innovation Solution
Incorporating modification guide features such as weakened sections and pilot sections on the lugs, allowing users to modify the length and hole configuration while maintaining compliance, through controlled breaking and precise hole placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If users modify the size of lugs or the location/size/number of holes in the lug to meet field needs, then adaptability and ease of operation are improved, but regulatory compliance and reliability deteriorate
Solution Approach 1:
The lug is segmented into multiple standardized size options with pre-defined hole configurations. Each segment represents a compliant modification state that has been pre-approved by regulatory bodies, allowing users to select the appropriate segment for their specific application without voiding approvals.
Solution Approach 2:
All possible field modifications are pre-planned and pre-approved during the design phase. The lug is manufactured with predetermined modification locations and configurations that have already received regulatory approval, eliminating the need for post-modification compliance verification.
2Ease of operation
If users modify the lug configuration in the field, then ease of operation is improved, but manufacturing precision and regulatory approval are compromised
Solution Approach 1:
The lug incorporates distinct segmented regions with pre-defined dimensional specifications. Each segment represents a standardized configuration that maintains manufacturing precision while allowing selective modification to match specific application requirements.
Solution Approach 2:
The lug design incorporates multiple discrete parameter variations (different sizes, hole configurations) that are all within approved specifications. Users select the appropriate parameter set for their application rather than creating custom modifications, maintaining both ease of operation and manufacturing precision.
3Reliability
If the lug design is standardized to maintain regulatory approval, then reliability is improved, but adaptability and versatility deteriorate
Solution Approach 1:
The lug is designed as a universal component with multiple built-in configuration options that can serve different application requirements. A single lug design incorporates various standardized sizes and hole patterns, allowing one component to fulfill multiple functions across different applications while maintaining a single regulatory approval.
Solution Approach 2:
The lug transitions from a static, single-configuration component to a dynamic, multi-configuration component. The lug can be selectively modified or selected in different states (sizes, hole configurations) depending on the application, while all states remain within the scope of the original regulatory approval.
Data Source
AI summary
Electrical connectors having field modifiable lugs are provided. In some embodiments, the electrical connectors include a lug having at least two different modification guide features, which assist the user to modify lug from its blank or unmodified state shown in to a modified state while ensuring that the modified connector maintains the desired compliance to the various regulatory and overseeing bodies.