"Wire", va? Romex NM / UF / SE / MH / vilken multiconductorbyggnadskabel som helst, är inte av frågan. Det är inte flexibelt och är gjord för obeveklig användning på skyddade platser, som bakom väggar, spjälsar, underjordiska eller i ledningar. Du kan inte använda byggkabel för flexibel ledning alls .
Även om du har ordentligt sladd , får du inte byta förlängningssladdar med handkartong och lite sladd. Specifikt tillåter 400.8 några flexibla band
- Used as substitutes for the fixed wiring of a structure.
- Run through holes in walls, structural ceilings, suspended or dropped ceilings, or floors.
- Run through doorways, windows, or similar openings.
- Attached to building surfaces.
- Concealed by walls, floors, or ceilings — or located above suspended or dropped ceilings.
- Installed in raceways, except as permitted elsewhere in the NEC.
- Used or installed in a manner that unduly exposes them to physical damage.
400.7 utesluter undantag där du är tillåts använda flexibla ledningar:
- Pendants [210.50(A) and 314.23(H)] if the cords are identified for pendant use in Table 400.4.
- Wiring of luminaires as allowed by 410.24(A) and 410.62(B).
- Connection of portable luminaires, portable and mobile signs, or appliances as allowed in 422.16 [400.7(A)(3), but when used with attachment plugs [400.7(B)].
- Elevator cables.
- Wiring of cranes and hoists.
- Connection of utilization equipment to facilitate frequent interchange [422.16], but only when used with attachment plugs [400.7(B)].
- Prevention of the transmission of noise or vibration [422.16].
- Appliances where the fastening means and mechanical connections are specifically designed to permit ready removal for maintenance and repair, and the appliance is intended or identified for flexible cord connections [422.16], but only when used with attachment plugs [400.7(B)].
- Connection of moving parts.
- Where specifically permitted elsewhere in the NEC.