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APPENDIX
For current information see: 1196
Appendix
Glossary
Cable tree
Combination of individual cores or cables tied together with nylon ties,
spirals or hose sheathing. The form of the harness is created when
joining the wires, as the various consumers in the device and system
circuits are physically separated and the connection with the individual
cables makes constant branches necessary.
Cable type letter code
Identification of cables according to their design, nominal cross-sec-
tion and number of cores, nominal voltage and conductor shape, which
results in specific combinations of predetermined letters and numbers.
For rules and standards, each of the letters and numbers has a specific
meaning.
Cables for hand-held machinery
Handheld device cables are connecting and extension cables for
power tools used in the open air or in enclosed spaces (e. g. ÖLFLEX®
540 P/CP, ÖLFLEX ® 550 P, ÖLFLEX® 400, ÖLFLEX ® 500 P, ÖLFLEX® SF
... at Lapp).
Caloric load values
Caloric load is the energy that is released when cables and other build-
ing materials are burned.
Campus
The campus or primary wiring establishes the connection between the
various buildings within a structured wiring system.
CAN
Controller Area Network. Result-controlled communication system.
As a generator of information, this reports to all connected nodes.
Canadian Electrical Code
See → CEC
Capacity
Electrical unit of measure, measured in Farad, or electrical unit of
measure V x A = Watts.
Carrier frequency
The frequency of the oscillation whose amplitude, phase or frequency
is influenced by a signal.
Carrier frequency, hook-up wire
In carrier frequency systems, they are used to transmit signals. Up to
120 carrier frequency channels can be simultaneously transmitted in a
cable.
CCC
Abbreviation for China Compulsory Certificate. Products requiring
certification can only be imported to China, sold in China or used in
Chinese business activities after the relevant CCC certification has
been requested and granted.
CE
Abbreviation for Communauté Européenne (European Community).
CE marking
Comprises the “CE” symbol and indicates a product′s compliance with
all applicable EU directives. CE indicates that the natural or legal entity
which carries out or initiates the connection is satisfied that the prod-
uct meets the requirements of all relevant harmonised standards and
has been subjected to all mandatory conformity assessment proce-
dures.
CEBEC
Abbreviation for Comité Electronique Belge – Belgian certification
body.
CEC
Abbreviation for the Canadian version of the US National Electrical
Code (NEC).
CEE
Mark for the European standards institution: International Commission
on Rules of Electrical Equipment.
CEI
Abbreviation for Commission Electrotechnique Internationale – Inter-
national.
CENELEC
Abbreviation for Comité Européen de Normalisation Electrotechniques
(Europe).
Central element
See → Core.
Central filler
The core is a design element onto which the other design elements are
attached.
Characteristic impedance
Apparent impedance of an electronic quadrupole; it is made up of
the Ohmic resistance and the frequency-dependent resistances of
inductances and capacitances. The impedance of a cable represents
the ratio of the voltage waves advancing in a direction to the current
wave moving in the same direction. Common values are 100, 120 and
150 Ohm. It is important that the impedance of the cable corresponds
to the input/output impedance of the connected equipment.
Chromatic dispersion
Grouping of wavelength-dependent effects which lead to a bandwidth
limitation, such as waveguide dispersion and sheath dispersion.
Circular Mil (CM)
Measurement for conductor cross-sections in 1/1000 inch (0.001”)
from circuit diameter.
Cladding
Cladding is the glass layer which surrounds the core of the fibre optic
cable.
Clamping range
Cable diameter range for which the assured properties of a cable gland
apply.
CNOMO
Abbreviation for Comité de Normalisation des Moyens de Production.
Commission for the standardisation of machine tools and tools used in
the French automotive industry. With fibre optic cables, the plastic
layer on the surface of the sheath for preserving the original surface
condition.
Coating
Coating is a form of mechanical surface protection. It is a primary
plastic layer which is applied directly to the sheath glass for fibre optic
cables.