UL-514D:2013 pdf free download – STANDARD FOR SAFETY Cover Plates for Flush-Mounted Wiring Devices.
5.4 Markings for marine use
5.4.1 The cartons used to ship marine-use products, or the shipping labels, shall be marked “Rated For
Marine Use,” or the equivalent.
5.4.2 The product or the smallest unit shipping carton in which it is packed shall be marked with the terms
“Watertight” or “Dripproof,” as applicable.
5.5 General installation instructions
5.5.1 Cover plates for flush-mounted wiring devices and outlet box hoods shall be provided with legible instructions pertaining to proper assembly and installation.
5.5.2 All parts required for compliance with the applicable resistance to moisture requirements in Clause
8.1 shall be provided in a single unit carton with installation and assembly instructions, except as permitted in Clauses 5.5.3 and 5.5.4.
5.5.3 Parts that function to exclude water and installation material shipped separately from other parts of the assembly shall comply with Clause 5.5.2 when:
a) the parts and installation material are specified in the installation instructions;
b) the part is not a gasket that functions to exclude water; and
C) the sealing compound is clearly and specifically identified in the installation instructions.
5.5.4 Parts and installation materials may be shipped separately in bulk when the smallest unit shipping carton is marked in accordance with Clause 5.3.9. At least one set of installation and assembly instructions shall be provided with the smallest unit shipping carton.
5.5.5 With reference to Clause 5.5.1, the installation instructions shall specify the appropriate mounting surface or surfaces and sealing method and indicate whether or not the outlet box hood or cover plate is intended for use with a box that is raceway supported.
6 Metallic Cover Plates and Outlet Box Hoods
6.1 General
6.1.1 An opening for a receptacle shall be such that the face of the receptacle projects a minimum of 0.38 mm (0.015 inches) outside the outer plane of the opening. The receptacle used to determine compliance with this requirement shall comply with the receptacle dimension requirements in NEMA WD6 and in CSA C22.2 No. 42, CSA C22.2 No. 182.2, or UL 498.
6.1.2 The material thickness of a cover plate shall not be less than 0.76 mm (0.030 inches) for ferrous metal (including stainless steel) or 1 .0 mm (0.040 inches) for nonferrous metal.
6.2 Corrosion protection
6.2.1 General
6.2.1.1 All ferrous metal surfaces shall have corrosion protection. The thickness of the coating on screws and on interior surfaces not accessible to a 19.1 mm (0.75 inches) diameter ball is not specified. The presence of a coating shall be determined by visual inspection.
6.2.1.2 With reference to Clause 6.2.1.1, stainless steel having a chromium content of not less than 16 percent is not required to be so protected.
6.2.1.3 With reference to Clause 6.2.1.1, cut edges and punched holes in a surface formed from galvanized stock are not required to be so protected.
6.2.1 .4 With reference to Clause 6.2.1 .1, spot or projection welds are not required to be protected, other than by a protective coating, as determined by visual inspection.