These requirements cover metal-clad cable for Use in hazardous (classified) locations, Class I, Division 1, Groups A, B, C, and D; Class II, Division 1, Groups E, F and G and Class III; Class I, Zone 1, Groups IIA, IIB, IIB plus Hydrogen, and IIC in accordance with the National Electrical Code, NFPA 70.

These requirements also cover explosion-proof and dust ignition-proof cable sealing fittings for use in hazardous (classified) locations, Class I, Division 1 and 2, Groups A, B, C, and D; Class II, Division 1 and 2, Groups E, F, and G; Class III, and Class I, Zones 1 and 2, Groups IIA, IIB, IIB plus Hydrogen, and IIC in accordance with the National Electrical Code, NFPA 70.

These requirements also cover explosion-proof and dust ignition-proof cable sealing fittings intended for use on mobile offshore oil rigs and drilling platforms. Investigations of these fittings include an evaluation for conformity to the installation and use provisions of Title 46 Code of Federal Regulations Sub-part 111.105 and Subpart 111.60 of the United States Coast Guard Electrical Engineering Regulations, Subchapter J (Parts 110 to 113 inclusive) as applied by the authority having jurisdiction.

These requirements apply to metal-clad cables and cable sealing fittings for hazardous locations under the following atmospheric conditions:
a) A minimum ambient temperature of minus 50EC (minus 58EF),
b) An oxygen concentration of not greater than 21 percent by volume, and
c) A nominal barometric pressure of one atmosphere.

A product that contains features, characteristics, components, materials, or systems new or different from those in use when the Standard was developed, and that involves a risk of fire, electric shock, or injury to persons, shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to mai ntain the level of safety for the user of the product as originally anticipated by the intent of this Standard.