Flexible Cords, Cables, and Fixture Wire - Don't get twisted up in these wiring requirements

摘要

Flexible cords and cabling are very useful, allowing us to do things that Chapter 3 wiring methods do not. But this flexibility comes at a cost - and that cost is increased vulnerability. For that reason, Art. 400 requirements are essential for safety. We can see the various types of flexible cords and cables in Table 400.4, which takes up seven pages and comprises more than half of Art. 400. The first rule of working with flexible cords and cables is always use that table. Some other basic rules to keep in mind include: 1. Always use a cord and fittings identified for the application [400.3]. 2. Never use a flexible cord or cable in place of a permanent wiring method. 3. Replace, rather than patch, a damaged cord or cable.