Archived 2016 Lapp Group International Catalog

Appendix Glossary

ÖLFLEX ® ACCESSORIES FLEXIMARK ® SILVYN ® SKINTOP ® EPIC ® HITRONIC ® ETHERLINE ® UNITRONIC ® APPENDIX bus system information can be exchanged bidirectionally via the digital bus. As well as the actual process data such as measured values (e. g. temperature) and control variables (e. g. speed), parameters such as the measuring range, measuring point codes (TAG), filter properties, maintenance or fault signals etc. can be transmitted. The advantages that this brings are obvious. Commissioning and maintenance are sim- plified and the flexibility of the system (e. g. with central measuring range selection) is improved. This normally also enables cost benefits to be achieved compared to conventional solutions. Filler Used as a component of insulating and sheathing compounds. The fillers in rubber compounds, for example, mesh directly into the rubber mol- ecules and give them good mechanical abrasion resistance. Important fillers include siliceous chalk, soot and aluminium oxide. Filler wire Usually a tin-coated copper wire which should have contact with the aluminium layer of the screen along the entire cable length. In order to ensure the filler wire doesn’t break when the cable bends, it must lie very loosely (undulating) on the cable core. The filler wire should be able to pass over any possible breaks in the screen. Fire behavior Property which describes the behaviour of the cable when on fire (in particular, fire propagation). Fire resistant Property of materials used for insulation and sheathing that are slow to catch fire when exposed to heat and are self-extinguishing when the heat source is removed (→ hard to inflame). Flame retardant Thermoplastic and elastomer compounds for insulation and sheathing are influenced by additives so that they are slow to catch fire when heat acts on them. Flat cable Ribbon cable in which the individual strands are welded together to form a ribbon (often with multiple colours) and normally with small cross-sections (0.08, 0.14 or 0.25). The individual cores can normally be separated. Application: In electronics, for connecting circuit boards. Flat type cable Several individually insulated conductors in parallel with a sheath for mechanical protection, produced in such a way as to give a rectangular cable cross-section. Used in crane systems (ÖLFLEX ® – Crane F). Flexibility A product (relating to cables in this case) is flexible if it can be moved around without impairing its functionality (e. g. lift cable or robot cable). Fluorethylenpropylen (FEP) Product from the TEFLON ® series. A plastic for high temperatures, with excellent chemical resistance and excellent electrical properties but not economical. TEFLON ® is a registered trademark of the company Du Pont de Nemours. Filler, valley sealer Filler or support element in individual stranding layers in cables.

Foil Plastic foil, metal foil and metal clad plastic foil are used for different purposes. Plastic foil provides mechanical protection, e. g. as padding under a screening braid or around the cores below when stripping to protect against incisions. Metal foil is used for electrical screening. Frequency Number of changes of polarity in an alternating current per second; the unit of measure is Hertz (Hz). FTP Abbreviation for Foil Shielded Twisted Pairs; in these cables the twisted pairs of cores are screened by a common plastic clad aluminium foil. Full duplex Full duplex transmission allows simultaneous transmission and recep- tion of signals. Abbreviation for “Gemeinsamer Ausschuss Elektronik im Bauwe- sen” [Joint Committee for Electronics in Construction] and describes the data format in which engineering and planning offices create specifications and tenders for industry, infrastructure and building services projects. Lapp tender texts in the common formats GAEB 90 (*.d81) and GAEB 2000 (*.p81) are available for download from www.lappkabel.de. General cable tie General cable ties are coloured or transparent fixing elements (nor- mally made of nylon) that can be used to secure individual wires or cables in a bundle. The teeth on the inside provide a permanent connection. Glass fibre cable Used to transmit data. They use light as the transmission medium rather than electric current. Dielectric waveguide, used to transmit signals using light waves. Also known as a fibre. GOST Standards institute in Russia (comparable with the VDE in Germany, British Standards in the UK, IMQ in Italy and UTE in France) Gradient fibre Light waveguide with a gradient profile, i. e. with a → refraction index profile that constantly changes across the cross-sectional area of the light waveguide. The profile of standard gradient fibres can be approx- imated as 1 < g < 3 by an exponent profile. Gusset Cavities that inevitably occur between the cores twisted into a strand due to their circular cross-section. When using sector-shaped conduc- tors, practically no gussets occur. H Halogen free Refers to materials that do not contain any halogens such as chlorine (Cl), bromine (Br), iodine (I) or fluorine (F). G GAEB Grid The exact spacing between the conductors in a ribbon cable.

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