UL
SUMMARY OF REQUIREMENTS
FOR
Flexible Metal Conduit
Standard No. UL 1; 11th Ed; February 16, 2005; Effective Date April 1, 2019
|This summary is derived from Standard Development Organization (SDO) bulletin(s) or other documentation publicly available. UL |
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|CCNs Impacted |DXUZ, DXUZ2 |
|Clause Ref. |Type of |Summary of Requirements |
| |Change |(Provide a brief explanation of what changed, the impact, |
| |(editorial, |and any specific actions to be taken) |
| |revised, new, | |
| |deleted) | |
|5.1 |revised |The thickness of the metal strip used for flexible metal conduit shall not be less than indicated in |
| | |Table 5.1 for the specified conduit type standard wall flexible metal conduit (FMC). |
| | |Exception: The thickness of the metal strip may be less than indicated in Table 5.1 when the conduit |
| | |complies with the requirements specified for extra reduced-wall flexible metal conduit (XRWFMC). |
|Table 5.1 |revised |Removed extra reduced-wall flexible metal conduit (XRWFMC) minimal acceptable thickness of strip |
| | |dimensions. |
|5.2 |editorial |Deleted non-essential text “of conduit” |
|13 |revised |Deleted “ XRWFMC” |
|13.1 |revised |13.1 The impact strength of finished conduit formed from strip material having a thickness equal to |
| | |or less than that specified in Table 5.1 for reduced-wall flexible metal conduit (RWFMC) is to be |
| | |determined as described in 13.2 - 13.4. Deformation of the conduit shall be less than 50 percent as |
| | |determined by measuring the overall diameter of the conduit after impact and comparing it to the |
| | |original value. |
|17.3.1 |revised |Deleted “or extra reduced-wall flexible metal conduit (XRWFMC)” |
|17.3.2 |revised |Deleted all references to “ XRWFMC” from Tag |
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