May 2, 2004 · Re: speaker wire color codes ? Hal, There are differing opinions on the types of cable to use. I recently pre-wired a residence for stereo speakers in several rooms. The layout …

Oct 1, 2014 · For RS485, is the white wire supposed to be the + voltage signal and the black wire the - voltage signal? That is normally the case for speaker wires...not sure if it mandated as …

Jan 10, 2009 · Brown & purple for aux power? Brown and purple for 24 volt power and solid wire are both requirements from the Rhode Island state fire code, among many other local rules. …

Oct 28, 2015 · Hello Everyone, I am in need of the code section which allows or does not allow wire nuts on fire alarm wiring, and also some back ground or theory on the topic. When, where …

Nov 21, 2016 · What are the approved wiring methods for 70.7 volt speaker systems? I looked in Articles 720 and 725 but not sure how they apply.

Aug 13, 2008 · By code Fire Alarm wire does not have to be red. But if it is in the specs I would clear it with the architects.

Mar 17, 2023 · What is the correct wire color coding in the US for a 240/480 Volt, Split Phase, 1 Phase, 3 Wire System according to the NEC Code.

Jun 25, 2003 · Re: wire color code For the grounded conductor Yes and No you should look at 2002 NEC 200.7 (A) and (C). If in pipe no, if in a flexible cord or cable assembly yes. For the …

Feb 4, 2012 · Speaker/strobes will always get at least 2 pairs. Don't screw up the wiring, or " bad things" may befall your fire alarm system, especially if you're using a 70.7 volt speaker setup.

Apr 27, 2016 · It was brought to my attention that UL508A had a wire color code change in the 2013 edition. I have been told that the new edition states some drastic changes from the …