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// CODE SNIPPET

510.3.5 Nonlisted Ductwork

Uniform Mechanical Code 2018 of Nevada > 5 Exhaust Systems > 510.0 Exhaust Duct Systems > 510.3 Openings > 510.3.5 Nonlisted Ductwork
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On nonlisted ductwork, the edge of the opening shall be not less than 11/2 inches (38 mm) from all outside edges of the duct or welded seams. [NFPA 96:7.4.1.5]

Related Code Sections


510.3.5 Exhaust Systems, Nonlisted Ductwork
On nonlisted ductwork, the edge of the opening shall be not less than 1 1 / 2 inches (38 mm) from all outside edges of the duct or welded seams ...
Uniform Mechanical Code 2018 of Nevada > 5 Exhaust Systems > 510.0 Exhaust Duct Systems > 510.3 Openings > 510.3.5 Nonlisted Ductwork
917.4 Installation of Specific Appliances, Ductwork
A unit heater shall not be attached to a warm air duct system unless listed and marked for such installation. [NFPA 54:10.25.4 ...
Uniform Mechanical Code 2018 of Nevada > 9 Installation of Specific Appliances > 917.0 Unit Heaters > 917.4 Ductwork
E 503.1.3.3 Sustainable Practices, Ductwork
New and replacement ductwork shall comply with Section E 503.4.7.1 through Section E 503.4.7.2.1. [ASHRAE 90.1:6.1.1.3.4] ...
Uniform Mechanical Code 2018 of Nevada > E Sustainable Practices > E 503.0 Heating, Ventilation, and Air-Conditioning — Other Than Low-Rise Residential Buildings > E 503.1 General > E 503.1.3 Alterations to Heating, Ventilating, Airconditioning, and Refrigeration in Existing Buildings > E 503.1.3.3 Ductwork
24.3.1.2* Emergency Communications Systems (ECS),
Where no listed loudspeaker exists to achieve the intelligibility requirements of the Code for a notification zone, nonlisted loudspeakers shall ...
National Fire Alarm and Signaling Code 2016 of Nevada > 24 Emergency Communications Systems (ECS) > 24.3 General > 24.3.1 Intelligible Voice Messages > 24.3.1.2*
24.5.9.3 Emergency Communications Systems (ECS),
Where no listed device exists for the detection required by the emergency response plan, nonlisted devices shall be permitted to be used ...
National Fire Alarm and Signaling Code 2016 of Nevada > 24 Emergency Communications Systems (ECS) > 24.5* In-Building Mass Notification Systems > 24.5.9 Initiating Devices > 24.5.9.3
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