ÖLFLEX
®
ACCESSORIES
FLEXIMARK
®
SILVYN
®
SKINTOP
®
EPIC
®
HITRONIC
®
ETHERLINE
®
UNITRONIC
®
APPENDIX
For current information see: 1204
Appendix
Glossary
Interface
Connecting point in a technical system that has particular properties
enabling connection to another technical system.
Internet
Worldwide virtual data network.
Intrinsically safe
Electrical installation that is, in its own right, safe from the point of view
of risk of explosion, i. e. no ignitable sparks can occur in the installa-
tion. All parts, including the cables, should be blue (RAL 5015) – e. g.
at Lapp ÖLFLEX® EB, ÖLFLEX® EB CY, UNITRONIC® EB CY).
IP Code
A system of designations used to indicate the degree of protection
provided by a housing against access to hazardous components,
ingress of solid foreign bodies and/or water and to provide additional
information relating to this protection (e. g. EN 602529).
ISDN
Abbreviation for Integrated Services Digital Network. Integrated ser-
vice digital telecommunications network. Suitable for transmission of
voice, text, images and data.
ISO
Abbreviation for International Organisation for Standardisation. Commit-
tee that develops internationally recognised standards.
J
Joint
Interconnection point between (data) transmission paths.
K
Kink
The cable has been forcefully bend over a sharp edge, causing plastic
deformation of the individual strands and wires. This results in grooves
that promote breakages on the individual wires.
kV
Abbreviation for Kilovolts. 1 kilovolt equals 1,000 Volts.
L
LAN
Abbreviation for Local Area Network. Physically limited network used
for communication within a building or company.
Laser-printer, ink-jet printer
With this method, small production batches can be printed at low cost
as there is no need for a print wheel to be made. The downside, how-
ever, is that it produces a print result of lesser quality.
Laying temperature
When installed, the cable temperature should not be below +3 °C.
Cables with sheathing and insulation are sensitive to bending and
impacts when exposed to cold.
Leading protective ground
The PE contact in a plug establishes the first contact and is the last
to disconnect, and is marked as the protective earth symbol.
Leakage current
Leakage current is the current that flows via the functional insulation
of a consumable to earth or an external conductive part. It can appear
as a pure active current or as an active current with a capacitive value.
In VDE 0700-1 “Household and Similar Electrical Appliances – Safety”,
the following leakage currents are specified:
• For devices of protection class 0 and 0I 0.5 mA
• For portable devices of protection class I 0.75 mA
• For non-portable motorised equipment of protection class I 3.5 mA
• For non-portable heating equipment of protection class I 0.75 mA
or 0.75 mA/kW, max. 5 mA
• For devices of protection class II 0.25 mA
• For devices of protection class III 0.5 mA
When taking leakage currents for an entire system (also important for
residual current protective equipment) into consideration, both the
leakage current (residual current) of the cables and the leakage current
of the consumable must be accounted for.
Length of lay, length of twist
The twist length is the distance (measured in the direction of the lon-
gitudinal axis) covered by the elements of a layer after being twisted
by 360°, e. g. 40 mm. It is usual to specify the number of twists per
metre, e. g. 40 mm = 25 twists.
Lever series
To lock the EPIC® rectangular connector, there are single or central
levers available for the one-handed locking of upper and lower housing
sections, the double levers are used for the two-hand locking.
Li2YCY
Polyethylene screened individual cores.
Li5YCY
TEFLON® PTFE screened individual cores. TEFLON ® is a brand name of
the company DuPont de Nemours.
Lift cable
Lift cables are control cables with strain relief used for lifts, gantry
cranes, teach pads, etc. (e. g. ÖLFLEX® LIFT, ÖLFLEX® CRANE at Lapp).
Link
A link represents a complete section of cabling from the floor distribu-
tion board to the data terminal input. It includes all connecting sockets
and plugs, installation cables and patch cables. The quality of a link
is defined using classes, the quality of the individual components using
categories.
LiY
Individual cores (strand) predominantly 0.14 and 0.25 mm2 LiYv: Tin
plated individual cores (strand).
LiYCY
Individual cores with copper screening (C stands for copper).
LiYY
Multi-core stranded cable (ÖLFLEX®, UNITRONIC®).
Longitudinal water tightness
Achieved by filling the gaps between the core arrangements with vari-
ous kinds of filler (e. g. petroleum jelly filling).