/usr/share/librecad/library/elektro/electro-vacuum-iso/ is in librecad-data 2.1.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-BT-horiz.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Barretter.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-BeamTet.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Diode.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-ECF80.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-ECL86.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Indicator.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Pentode.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Rectifier.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Stabiliser.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Tetrode.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Tri-HalfDoub.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Tri-double.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Triode-Pen.dxf
/usr/share/librecad/library/elektro/electro-vacuum-iso/Valve-Triode.dxf