400.7 Flexible Cords and Cables. Uses Permitted.
The inlet, the receptacle outlet behind the TV, and Chapter 3 wiring method, including the flexible cord and fittings, shall be a listed assembly specific for this application.
Flexible Cord Issues - ECN Electrical Forums
Flexible Cord Issues - ECN Electrical Forums
Is there a reason why power cords for heating units are much thicker than other appliances' power cords? - Quora
Electric Safety: 4 Common Mistakes Using Extension Cords
electrical safety Archives — Wenatchee Home Inspection
Flexible Cord Issues - ECN Electrical Forums
NEC 2014 Code Changes Update
electrical - Extension cord and power strip safety - Home Improvement Stack Exchange
NEC 2014 Code Changes Update
Chapter 4 Equipment for General Use: Equipment for General Use, Alabama Electrical Code 2014
Using SOOJ cable. - Electric power & transmission & distribution
Flexible Cord Issues - ECN Electrical Forums
Code Q&A: Where Can You Not Use Flexible Cords and Flexible Cables?