National Electrical Installation Standards

Standards as High as Your Own

Monday, April 1, 2019


Re: CQD answer published Monday, March 25, 2019 - DLO Cable

The answer states no, I feel the answer should be Yes. DLO cable that is listed to meet NEC requirements is often used for this type of Installations. It is out of the scope of non Industrial electrical installers but I found it to be a great learning opportunity. The rest of your answer say yes it can as long as all items of the installation are specified and used so that the correct terminations and crimp specifications are used. It can be a great answer to wire bending space and knowledge that can make us all great at our installation. Thanks for the daily questions and answers. Look forward them to learn and review code.

Bryan Desh


Hey Bryan thanks for your follow up comment and compliment. The answer can be yes if the cable has additional insulation markings of a type that is in Table 310.104. Conductors must be marked with the letter or letters specified in the NEC as stated in 310.120 (A)(2). Cable that is "listed to meet NEC requirements" would have those letters such as RHH/RHW in addition to DLO (which is readily available) but cable that is only marked DLO would not be allowed.

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