If not properly grounded,
non-shielded
cables may pose
a serious shock hazard
Although the 2005 Code-change cycle often included lively debate on the use of non-shielded cables at 4.16kV and 2.4kV, in the end, the majority of the members of Code-Making Panel 6 (CMP-6) voted to modify the exception to 310.6 (2002 version), which had allowed for the use of non-shielded cables at these voltage levels. The revised exception now allows for the use of 2.4kV non-shielded cables only
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