Which statement matches the wet-location rating in Southwire specification 10000 for its SIMpull THHN/THWN-2 copper conductor?
- ATHWN-2 is rated only for dry locations
- BTHWN-2 means the conductor may be installed exposed anywhere
- THWN-2 is rated for wet or dry locations up to 90°C, subject to other installation limits
- DTHWN-2 requires a minimum operating temperature of 90°C
Where to look it up
https://www.southwire.com/wire-cable/building-wire/simpull-sup-sup-thhn-thwn-2-copper/p/SPEC10000
Why C is correct
The THWN-2 designation covers wet or dry locations with a 90°C temperature limit in this specification. This rating does not approve every wiring method or override terminal, ampacity, or other installation limits. It also does not mean THWN-2 is the only conductor permitted in metal conduit. Source: https://www.southwire.com/wire-cable/building-wire/simpull-sup-sup-thhn-thwn-2-copper/p/SPEC10000