Please note: All interim revisions for this edition available at time of your purchase will be included.

These requirements apply to protective wiring assemblies that, in combination with other burglar alarm equipment, are intended to signal a burglary entry when installed on openings, walls, ceilings and floors of mercantile premises and residences; doors, walls, ceilings and floors of vaults; and inside or outside safes.

Requirements covering the installation of linings and screens in burglar-alarm systems are published in the Standard for Installation and Classification of Burglar and Holdup Alarm Systems, UL 681, and the Standard for Installation and Classification of Residential Burglar Alarm Systems, UL 1641.

Linings and screens are designed to operate in remote control and signal circuits that are defined as Class 2 circuits in Article 725 of the National Electrical Code, NFPA 70.

A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this Standard, 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 to determine that the level of safety as originally anticipated by the intent of this Standard is maintained. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this Standard shall not be judged to comply with this Standard. Where appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this Standard.