7, Part D, where installed in hazardous (classified) locations.

(d) Corrosive, Damp, or Wet Locations. Sections 110-11, 300-6, and 310-9 where installed in corrosive, damp, or wet locations. (e) Building Control Circuits. Article 725 where building control circuits (e.g., elevator capture, fan shutdown) are associated with the fire protective signaling system. 760-3. Classifications. Fire protective signaling circuits are the portion of the wiring system between the load side of the overcurrent device or the power-limited supply and all connected equipment, and shall be classified as nonpower-limited or power-limited. All fire protective signaling circuits shall comply with Part A, and, in addition, nonpowerlimited circuits shall comply with Part B, and power-limited circuits shall comply with Part C. Circuits that do not comply with all of the requirements of Part C, including the markings required by Section 760-22, are classified as nonpower-limited circuits and shall comply with all of the requirements of Part B. 760-4. Identification. Fire protective signaling circuits shall be identified at terminal and junction locations, in a manner that will prevent unintentional servicing. interference with the signaling circuit during testing and 760-5. Circuits Extending Beyond One Building. Fire protective signaling circuits that extend aerially beyond one building shall either meet the requirements of Article 800 and be classified as communications circuits, or shall meet the requirements of Article 225. 760-6. Grounding. Fire protective signaling circuits and equipment shall be grounded in accordance with Article 250. Exception: DC power-limited fire protective signaling circuits having a maximum current of 0.030 amperes. 760-7. Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to equipment shall not be denied by an accumulation of wires and cables that prevents removal of panels, including suspended ceiling panels. ARTICLE 760 - FIRE PROTECTIVE SIGNALING SYSTEMS 70-769 B. Nonpower-Limited Fire Protective Signaling Circuits 760-11. Power Limitations. The power supply of nonpower-limited fire protective signaling circuits shall comply with Chapters 1 through 4, and the output voltage shall not be more than 600 volts, nominal. 760-12. Overcurrent Protection. Conductors No. 14 and larger shall be protected against overcurrent in accordance with the values specified in