On average, a single fusion splice can take anywhere from 10 to 30 minutes, including preparation and testing. The answer isn't always straightforward, as it depends on various factors, including the type of fiber, the splicing method, and the level of expertise of the technician. Before we dive into the timeline, it's essential to understand the splicing process itself. In this article, we will delve into the details of the splicing process and explore the. Fusion splicing refers to a method of joining two optic fibers together by means of heat, often an electric arc, which fuses the glass ends. Unlike connectors, which are used for temporary joints, splicing creates a permanent, low-loss connection.