UL-1641:2015 pdf free download – STANDARD FOR SAFETY Installation and Classification of Residential Burglar Alarm Systems.
9.3 Splices and connections
9.3.1 A conductor shall be spliced or joined with a splicing device determined to be acceptable for this purpose. A splice intended to be soldered shall be spliced or joined to be mechanically and electrically secured before being soldered. All splices and joints shall be covered with an insulation that has been tested and determined to be the equivalent to that of the conductors or with not less than two layers of electrical tape. A splice located in an area subjected to dampness shall be treated with a sealant that has been determined to be acceptable or treated in a manner that been determined to be the equivalent.
9.3.2 A wire secured to a terminal by upturned lugs or washers does not require soldering.
9.4 Connectors
9.4.1 A connector intended to carry a circuit onto a movable opening shall comply with the Standard for Connectors and Switches for Use with Burglar-Alarm Systems, UL 634.
9.5 Entrance to building and remote areas
9.5.1 Entrance of an overhead outside wire shall be as inaccessible as is practical. A wire passing through a wall shall have an insulating bushing, conduit, or electrical metallic tubing slanting upward from the outside. However, if slanting is not possible, a drip loop shall be used. Conduit shall be equipped with a service head.
9.5.2 Interconnecting wiring carried to a separate building, garage, or storeroom, or to another floor outside the residence, may be overhead or underground.
10 Windows
10.1 Contacts shall be installed so that a window cannot be opened more than 6 inches (152 mm) without initiating an alarm. The contacts and their wiring shall be protected from circumvention.
10.2 Foil used on a glass surface shall not be more than 1/2 inch (12.7 mm) wide and not more than 0.002 inch (0.05 mm) thick. It shall be applied evenly and secured to the surface so that it will not blister or loosen in service and shall be protected by a covering such as varnish or that which has been determined to be the equivalent.
10.3 A protective covering on the foil or glass that may hinder breakage of the foil shall not be used.
10.4 A single conductor of foil connected in the protection circuit may be used for the protection of glass.
10.5 A crack shall not be bridged with foil. At the junction of glass and frame, foil shall be reinforced to protect it against breakage during intended service.
Exception: A small crack in plate glass may be reinforced and bridged with foil if a section of the glass cannot be removed without breaking the foil at other points.
10.6 Foil on ordinary window glass shall be applied to the sides and across the bottom of each section of glass, and spaced not less than 2 inches (51 mm) nor more than 4 inches (102 mm) from the edge of the glass.
10.7 If an ordinary glass panel is 16 inches (406 mm) wide or less, a single, centrally located strip of foil may be applied lengthwise on the pane.
10.8 Foil on laminated glass, laminated tempered glass, polymeric-coated glass, polymeric glazing material, or wired glass shall be spaced not less than 2 inches (51 mm) nor more than 4 inches (102 mm) from the edge of the glazing to the nearest edge of the foil and shall be arranged in parallel lines over the entire surface. The distance between centers of adjacent strips of foil shall not exceed 8 inches (203 mm).