Issue link: https://www.e-digitaleditions.com/i/405901
30 We know code We're working to simplify NEC code compliance Let's face it. NEC code compliance can be a complicated process, and each inspector may have a different interpretation of a given code. HellermannTyton is leading the way in code simplification and working to streamline the photovoltaic labeling process to make it easier for contractors to properly label installations and pass inspections. Consider the example of using engraved phenolic plates versus labels… The Guideline The 2014 National Electrical Code (NEC) and the 2012 International Fire Code (IFC) have been updated to reflect the growing needs of the installer at both the commercial and residential levels. This includes more detail on labeling, which is an important part of any installation. The NEC indicates that the markings must be of sufficient durability to withstand the environment, while the IFC states that adhesive vinyl signs are acceptable if properly adhered. NEC 2014 label requirements are backward compatible to the NEC 2008 and NEC 2011 codes. Municipalities that are still using older revisions of the NEC code can use the new NEC 2014 labels without risk. The Reality Many local municipalities still require the use of engraved plates, but the market is changing to better protect first responders and emergency personnel. Adhesive vinyl labels that are red with white text, reflective, and meet UL 969 standards are described in the new codes and are designed to be more visible, more durable, and work on more applications. The Perception Today, many local inspectors and the Authority Having Jurisdiction (AHJ) believe that only engraved phenolic plates are acceptable, but neither the NEC nor the IFC specify the use of engraved markers. Many installers are now able to use (code acceptable) adhesive label options that are in accordance with the dimensional, functional and verbiage requirements needed to ensure a safe and informative installation. As always, the installer must check local codes before deciding the best and most cost effective way to label the installation. The Situation The primary concern with engraved or etched signage (phenolic plates) is the lack of flexibility, high cost, and lead times which can delay inspections. Typical phenolics are not made with UV stable materials. Printing labels on site, as needed, or purchasing preprinted inventory saves time and reduces labor costs without sacrificing UV stability and outdoor durability. The Option HellermannTyton's solar installation labels are UV durable and feature an ultra-bond adhesive for both powder coat and baked enamel surfaces. preprinted with the most common legends to meet the requirements of the AHJ, the labels are manufactured using ultraviolet resistant ink, permanent acrylic adhesive, and a base material to withstand environmental elements. The Benefit HellermannTyton offers a line of the most commonly used regulatory solar identification labels on large utility and scaled PV installations. • Significant cost & time savings • Tested to UL 969 standard • Made with UV stable inks and materials for durability and weather resistance • Adhere to baked enamel and powder coat painted surfaces • Supplied with an aggressive adhesive to ensure long life • Meet NEC and IFC standards for printed text, character height, color and outdoor UV stability