1.1 This Recommended Practice provides test procedures for evaluating the capability of a cable to withstand different flexing motions. One or more of these tests may be used depending on the specific application.

1 Scope

1.1 This measurement method covers electrical equipment such as switchboards, panelboards, industrialcontrol panels, meter socket enclosures, and motor control centers, rated 1000 V and less, that areintended to be installed in accordance with the National Electrical Code, NFPA 70, and optionally markedby the manufacturer with an available incident energy rating at a corresponding working distance inaccordance with the Standard for Electrical Safety in the Workplace, NFPA 70E.

1.1 These methods of fire tests are applicable to window assemblies, including glass block and other light transmitting assemblies, for use in the protection of openings in vertical fire resistive assemblies.

1.2 Assemblies classified in accordance with this standard provide only limited protection from the transmission of heat. This standard provides guidance to measure the heat flux emitted through the test specimen during the fire exposure and temperatures on the unexposed surface.

1.3 Tests made in conformity with these test methods shall not be construed as determining suitability of window assemblies for continued use after fire exposure.

1.4 These methods are intended to evaluate the ability of a window or other light transmitting assembly to remain in an opening during a predetermined test exposure.

1.5 The tests expose a specimen to a standard fire exposure controlled to achieve specified temperatures throughout a specified time period, followed by the application of a specified standard fire hose stream. The exposure, however, may not be representative of all fire exposure conditions, which may vary with changes in the amount, nature, and distribution of fire loading; ventilation; compartment size and configuration; and heat sink characteristics of the compartment. It does, however, provide a relative measure of fire performance of window assemblies under these specified exposure conditions.

1.6 This standard defines two pressure conditions for the control of the furnace during the fire exposure. One pressure condition is identified as a positive pressure condition and one is identified as a neutral pressure condition.

1.7 Any variation from the construction or conditions that are tested may substantially change the performance characteristics of the assembly.

1.8 These methods do not provide the following:

1. a) Full information as to performance of all window assemblies in walls constructed of materials other than tested.

2. b) Evaluation of the degree by which the window assembly contributes to the fire hazard by generation of smoke, toxic gases, or other products of combustion.

3. c) Measurement of the degree of control or limitation of smoke or products of combustion passage through the window assembly.

These methods permit loss of glass lights and through openings, provided such loss and openings do not exceed specified limits.

1.1 This Outline of Investigation covers the power handling capabilities of Information and Communication Technology (ICT) cable assemblies when used for powering or charging applications. The signal transmission performance of the cable assemblies is not within the scope of these requirements.

1.2 These requirements apply to ICT cable assemblies categorized below, Type designations used in this Outline only serve as a guide to determine appropriate requirements, and do not represent an assigned rating.

1. a) Type I: These cable assemblies are intended to be used only in the output of a power source class 2 (PS2)and electrical energy source class 1 (ES1), or a limited power source, as determined in accordance with the Standard for Safety for Audio/Video, Information, and Communication Technology Equipment – Part 1: Safety Requirements, UL 62368-1. These circuits do not exceed 60 V DC, 8.0 amperes and 100 watts.

2. Note: These circuits are sometimes referred to as "low voltage, limited-power circuits", "low voltage, limited-energy circuits” or "NEC® Class 2 circuits".

3. b) Type II: These cable assemblies are intended to be used in the output of a power source that exceeds the limits for Type I and provide powering or charging for connected equipment that do not exceed 60 V DC, 8.0 amperes and power limits over 100 watts and up to and including 250 watts. These cable assemblies contain an electronic circuit to implement power delivery synchronization (handshaking) with the power source before permitting over 100 W of power.

4. Note: These circuits are sometimes referred to as ES1 (< 60Vdc >) and PS3 (> 100VA)

1.3 ICT cable assemblies may also be required to comply with industry specifications applicable to their particular configuration and use. Compliance with these specifications is not within the scope of these requirements.

1.1 This Recommended Practice provides a test procedure for determining the depth of cut on a test probe after the test probe comes into contact with the spinning blade of a table saw.

1.1 This recommended practice provides guidance to the owner/operator of hazardous (classified) locations for the use of portable/personal electronic products in Class I, Division 2; Class I, Zone 2; Class II, Division 2; Class III, Division 1; Class III, Division 2; Zone 21, Group IIIA only; or Zone 22, Groups IIIA and IIIB only hazardous (classified) locations.

1.2 This recommended practice is not suitable for product certification.

1.3 Further, this recommended practice is not suitable for the evaluation of the following:

1. a) Products that are powered by premises wiring or connected to a communication line during use in the hazardous (classified) location.

2. b) Products powered by power sources other than battery or photovoltaic cell.

3. c) Products intended to be used for Zone 1, Zone 0, Zone 22 Group IIIC, Zone 21 Group IIIB or Group IIIC, Zone 20, Class I Division 1, Class II Division 1.

4. d) Products intended for mining applications.

1.4 Also, this recommended practice is not suitable for the evaluation of types of portable/personal electronic products that are available as certified products for the hazardous (classified) locations by an OSHA Nationally Recognized Testing Laboratories (NRTL). Examples of available NRTL certified products include but are not limited to radios, pagers, flashlights, cell phones, tablets, cameras, smart watches, and test instruments. Differences in manufacturer/brand or software feature do not constitute a lack of availability.

NOTE 1: The following are the typical Division system standards for these products:

1. • UL 121201, Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations.

2. • UL 783, Electric Flashlights and Lanterns for Use in Hazardous (Classified) Locations.

NOTE 2: The Zone system standards for these products are UL 60079 series, Explosive Atmospheres for EPC Gc and Dc applications.

NOTE 3: In the United States, an OSHA interpretation of 29CFR1910.399 requires that a certified, listed, or labeled product be used if it is available. When certified, listed, or labeled equipment is not available, the CFR allows for testing and inspection by the owner/operator. This recommended practice is intended to provide guidance to the owner/operator for such testing and inspection.

1.5 This recommended practice does not address other considerations involving the use of portable/personal electronic products which may result in these products being considered unsafe due to creation of a distraction from important work tasks or radio frequency interference with measurement and control equipment.

1.1 These requirements cover humidifiers rated 600 V or less, and intended to be used in accordance with the National Electrical Code (NEC), ANSI/NFPA 70, and the rules of CSA C22.1, Canadian Electrical Code (CEC), Part I.

1.2 These requirements cover humidifiers intended for residential and commercial use. This includes humidifiers of the centrifugal atomizing type, evaporative-media type, water-injection type, steam type, and the like. The humidifiers are intended for installation in a room, mounted on a wall or a ceiling, or for duct or plenum mounting.

1.3 These requirements apply to equipment that includes an electric heating element to heat air or water, or both.

1.4 These requirements do not apply to evaporative coolers that are also intended to be used for cooling.

1.5 These requirements do not apply to portable, electrode-type products, such as vaporizers, which are covered by UL 499 and CAN/CSA-C22.2 No. 64.

1 Scope

1.1 These requirements apply to controls that employ solid-state devices and are intended for specified safety-related protective functions.

1.2 These requirements address the potential risks unique to the electronic nature of a control. Equipment or components employing an electronic feature shall also comply with the basic construction and performance requirements contained in the applicable end-product or component standard. These requirements are intended to supplement applicable end-product or component standards and are not intended to serve as the sole basis for investigating the risks of fire, electric shock, or injury to persons associated with a control.

1.3 These requirements do not cover controls covered by end-product standards in which an electronic control investigation is specified.

1.4 Sections 9 – 22 contain standardized test methods for investigating the performance of an electronic control when subjected to particular environmental stresses. The suitability of each test to a given control shall be determined by the end-product standard(s). Determination shall include an assessment of:

a)    Whether the control will be exposed to a particular environmental stress in its application, and

b)    Whether the response of the control to a particular environmental stress is relevant to its intended safety-related protective function in its application.

1 Scope

1.1 These requirements cover open, enclosed and dead-front switches rated up to 1500 V dc, intended for use in dc photovoltaic (PV) systems and installed in accordance with Article 690 of the National Electrical Code, ANSI/NFPA-70. These switches are intended for ambient conditions between minus 20 to +50°C.

1.2 These requirements are intended to be used in conjunction with requirements in the Standard for Enclosed and Dead-Front Switches,UL 98, except as modified or supplemented by the following requirements.

1.3 Unless otherwise specified, when the term switch is used in this outline, it refers to a photovoltaic, enclosed, open, or dead-front switch.

1.4 Fusible switches are intended for use with photovoltaic (PV) fuses which comply with the requirements of Outline for Low-Voltage Fuses – Fuses for Photovoltaic Systems,UL 2579.

1.5 These requirements also apply to open type switches, used in conjunction with the Outline of Investigation for Open Type Switches,UL 98A.

1.6 These requirements also cover fused and unfused electrically tripped PV switches.