Application of a heat shrink splice protector immediately after fusion splicing will protect the spliced 8 or 12 optical fibre ribbon during installation, handling and storage for many years of the fibre’s lifetime. The heat shrink sleeves have been tested to Bellcore (Telcordia) Spec GR1380 Each protector has a clear outer polyolefin tube, and a 2 x 4mm half quartz di-electric strength member for low heat absorption, mechanical strength and electrical resistance. A shrink sleeve is completed in typically (40-60) sec, at a temperature of (100-120)˚C, to Ø5.4 mm dia. Typically, these heat shrink splice protectors are used in: 2RU Splice/Patch subracks, where ribbon fibre is used. They are usually housed in a Part No: TC250S-23 splice protector holder, mounted in a splice tray (stack) of Part No: TC251S-1X trays.