By-pass Lines (BPLs) pass each of the six straight warm sections of SIS100 to supply liquid helium and cold electrical connections to the SC quadrupole doublets within these sections. Detailed technical specification [2] concerning the BPL system was prepared and approved at GSI in 2013. Based on this, the in-kind contract was signed between FAIR and the Wroclaw University of Technology (WrUT). In conjunction with the cryogenic group CSCY, the WrUT has worked out a detailed technical design of the first BPL part connecting the cryogenic feed-in point at SIS100 directly to the cold arc magnet (see Fig. 1). The design details and interfaces were settled during the Final De sign Review held at GSI in February 2015. It includes the design of process pipes, bus-bars, vacuum vessel, supports and instrumentation. The production of this first component will start during first quarter of 2015 and is supposed to be finished and delivered to GSI before the end of 2015. This component will be a part of the SIS100 String Test set-up tested at Serial Test Facility connecting first dipol e and quadrupole. Moreover, a new clamping system to fix the bus-bar pairs was developed at WrUT and is currently being tested at GSI. This clamping system shall be used in the SIS100 BPLs.