gabo Systemtechnik speed•pipe® bundle ground Laying instructions SRV-G und SRV-G tc 24 Requirements for achieving optimum blowing in lengths into SRV-G and speed•pipe® ground. Trench. • With plane ground (no bumps in the ground). • As straight as possible. • Radius as large as possible – recommended: more than 2.5 m (radius of at least 1 m). • As far as possible compensate height differences of 0.1 m over a distance of at least 2 m. SRV-G tc or speed•pipe® ground laid in a trench. • As straight as possible – e. g. along the wall of the trench. • Lay the SRV-G tc plane and do not twist. • Lay SRV-G tc under tension. • Never throw (large) stones onto the SRV-G tc or speed•pipe® ground; filling of the trench is to be carried out like the procedure with a direct buriable cable. • Mechanical compacting equipment is not allowed until 30 cm depth of coverage. • The later creation of a coiled bundle can have a negative effect on the installation. • Compact the ground constantly. • Keep integrated speed•pipe® ground free of dirt and soil – seal pipe ends! • Wind off the SRV-G tc from the lower side of the coil (see pictures at point 16). SRV-G tc or speed•pipe® ground ploughed. • For avoiding elongations of the speed•pipe® ground due to tensile stress the coil axis must be easily rotatable. • Make sure that the coil immediately can be retarded in case of a sudden stop of the plough. • Carry out the ploughing as straight as possible. • When changing the direction always keep a radius of at least 2.5 m. • Rapid height differences should be avoided. • Keep integrated speed•pipe® ground free from dirt and soil – seal pipe ends! 10. Blowing in micro cables / mini cables.
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