out-1493.6Outline of Investigation for Underground Low-Energy Circuit Cable
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1 Scope
1.1 This Outline covers the requirements for single or multiple conductor cables intended for underground use in accordance with the National Electrical Code (NEC), NFPA 70. The wire is rated 30 V or 150 V ac or dc and 60, 75, or 90°C. These cables are intended to be connected to a Class 2 or Class 3 power source as defined by Tables 11(A) and 11(B) of the NEC.