Skip over navigation
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F 1/00; waveguides H01P; installations of cables or lines H02G; [N: printed circuits H05K])
Definition statement
This subclass/group covers:
  • Electrical conductors or cables characterised by their conductive material or form including power cables, communication cables or conductors, and superconductors or hyperconductive conductors, cables or transmission lines.
  • Electrical insulators or insulating bodies characterised by their insulating or dielectric material or form, including capacitor-type insulators.
  • Apparatus or processes specially adapted for manufacturing conductors or cables.
  • Apparatus or process specially adapted for manufacturing insulators or insulating bodies.
  • Apparatus or process for salvaging material from cables.
Relationship between large subject matter areas

Electrical conductors or cables characterised by their conductive material or form including power cables, communication cables or conductors, and superconductors or hyper-conductive conductors, cables or transmission lines are classified in H01B 1/00 - H01B 1/24

Insulators based on inorganic materials are classified in H01B 3/02 - H01B 3/16; Insulators based on fibrous materials (e.g. fabric, paper) are classified in H01B 3/48 - H01B 3/545; Insulators based on gases are classified in H01B 3/56

Non-insulated conductors or conductive bodies characterized by their form can be found in H01B 5/00 - H01B 5/16

Insulated conductors or cables characterized by their form are classified in H01B 7/00 - H01B 7/428

Power Cables are classified in H01B 9/00 - H01B 9/0694

Communication Cables are classified in H01B 11/00 - H01B 11/22

Superconductive or hyper-conductive conductors, cables or transmission lines are classified in H01B 12/00 - H01B 12/16

Apparatus or processes specially adapted for manufacturing conductors or cables are classified in H01B 13/00 - H01B 13/348

Apparatus or process for salvaging material from cables are classified in H01B 15/00 - H01B 15/008

Insulators or insulating bodies characterised by their form are classified in H01B 17/00 - H01B 17/66

Apparatus or processes specially adapted for manufacturing insulators or insulating bodies are classified in H01B 19/00 - H01B 19/04

Resistors
Inductances; Tranformers
Capacitors
Electric switches; Relays
Electric discharge lamps
Electric incandescent lamps
Semiconductor devices
Batteries, electrodes for batteries
Electrical cables or conductors of the waveguide type
Cables used as aerials
Electrically-conductive connections; Structural associations of a plurality of mutually-insulated electrical connecting elements; Coupling devices
Devices using stimulated emission
Spark gaps
References relevant to classification in this subclass
This subclass/group does not cover:
Superconductors characterized by a ceramic forming technique or ceramic composition
Conductive paints
Insulating paper
D21H27/12
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. coupling
Selection of magnetic properties
Piezo-electric or electrostrictive materials
Transmission lines of the waveguide type, disclosing typical HF-features, e.g. propagation of non-TEM modes, multimodes or particular dimension adapted for HF-propagation
Coaxial cables functioning as an antenna
Wire processing before connecting to contact members
Cables with separate protective tubings or conduits
Printed circuits
Cables or wires comprising electrodes, or feed-throughs for implantation or insertion into the body
Cables especially adapted for vehicles
Storing or paying-out lengths of conductors or cables
Insulating rail joints
Sensing cables for alarm systems
Passages or insulators for monitoring in nuclear reactors
Resistors
Insulating of windings for manufacturing coils
Details of transformers or inductances
Capacitors
Devices using superconductivity or hyperconductivity
Coaxial lines for handling frequencies considerably beyond the audio range
Bus-bar layouts
Installations of electric cables or lines, or of combined optical and electric cables or lines
Details of windings of dynamo-electric machines characterized by the conductor or insulating material
Communication line transmission systems
Heating elements
Informative references
Attention is drawn to the following places, which may be of interest for search:
Processes for applying liquids or other fluent materials to surfaces to obtain a coating with specific electrical properties
Suspension insulators for trolley lines
Optical cables; Structural details of arrangements comprising light guides and other optical elements, e.g. coupling
Passages or insulators for nuclear reactors, e.g. for electric cables
Cable insulation removal methods and apparatus
Junction boxes
Arrangements leading cables or lines through walls
Bus-bars
Circuit arrangements or systems for supplying of distributing electric power
Wire processing for making windings for dynamo-electric machines
Screening of apparatus or components against electric or magnetic fields
Special rules of classification within this subclass

Group H01B 12/00 takes precedence over groups H01B 5/00, H01B 7/00, H01B 9/00, and H01B 11/00.

Cables including at least one electrical conductor together with optical fibers are classified in group H01B 11/22.

The following IPC groups are not used in the internal ECLA classification scheme. Subject matter covered by these groups is classified in the following ECLA groups:

H01B 7/17 to H01B 7/295 covered by H01B 7/18 to H01B 7/2813, H01B7/34 to H01B7/34B3.

Device aspects of an invention are to be classified in H01B 5/00, H01B 7/00, H01B 9/00, H01B 11/00, H01B 12/00 and H01B 17/00, method aspects of an invention are to be classified in H01B 13/00. Therefore, there are corresponding subgroups, see table below:

Description
Device subgroup / Process subgroup
Stranded conductors
Cable harnesses
Disposition of insulation
Wrapped layers of insulation
Cables with gas dielectric
Longitudinal lapped insulation
Extruded layers of insulation
Extensible conductors
Rigid-tube cables
Protection against damage
Internal space filling-up means
Extruded metal tubes
Protection against moisture, chemical attack or weather
Transposed conductors
Distinguishing marks
Indices being imposed on the insulation
Mark being a tape, thread or wire
Mark being a sleeve, tag or clip
Concentric cables
Pair constructions
Quad constructions
Cables with twisted pairs or quads
Pairs or quads mutually positioned to reduce crosstalk
Coaxial cables
Coaxial cables, construction of conductors, e.g. inner and outer conductor
Coaxial cables, construction of the insulation between conductors
Coaxial cables, insulators of cellular structure
Coaxial cables, outer layers

Within each main group of this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place.

Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors (resistors H01C; selection of materials for superconductivity H01L 39/00)
Definition statement
This subclass/group covers:
  • Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
References relevant to classification in this group
This subclass/group does not cover:
Resistors
Selection of materials for superconductivity
Organic macromolecular compounds or compositions
C08
Special rules of classification within this group

Groups H01B 1/14 to H01B 1/24 take precedence over groups H01B 1/02 to H01B 1/12

Organic substances [N: (organic macromolecular compounds or compositions C08)]
Informative references
Attention is drawn to the following places, which may be of interest for search:
Organic macromolecular compounds or compositions
C08
Conductive material dispersed in non-conductive organic material [N: (organic macromolecular compounds or compositions C08)]
Informative references
Attention is drawn to the following places, which may be of interest for search:
Organic macromolecular compounds or compositions
C08
Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties (selection of piezo-electric or electrostrictive materials H01L 41/00)
Definition statement
This subclass/group covers:
  • Insulators or insulating bodies characterised by the insulating materials
  • Selection of materials for their insulating or dielectric properties
References relevant to classification in this group
This subclass/group does not cover:
Selection of piezo-electric or electrostrictive materials
Informative references
Attention is drawn to the following places, which may be of interest for search:
Superconductors characterized by a ceramic forming technique or ceramic composition
Metallic oxides (ceramics H01B 3/12)
References relevant to classification in this group
This subclass/group does not cover:
Ceramics
mainly consisting of organic substances [N: (organic macromolecular compounds or compositions C08)]
Definition statement
This subclass/group covers:
  • Electrical insulators or insulating bodies characterised by their insulating or dielectric material or form, including capacitor-type insulators.
  • Insulating materials based on organic substances including cellulose and derivatives, organic liquids, asphalt- and bitumen-based materials, natural and synthetic rubber, polymeric materials including resins and waxes.
Informative references
Attention is drawn to the following places, which may be of interest for search:
Macromolecular compounds obtained only by reactions involving unsaturated carbon-to-carbon bonds
Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
Additives for polymer compositions in general
Polymer Compositions
Hydrocarbon and fatty acid compositions
Passages or insulators for nuclear reactors, e.g. for electric cables
Insulating paper
D21H7/12
Special rules of classification within this group

For applications which deal with polymer compositions comprising inorganic additives, where it is not apparent, whether the invention resides in the polymeric or the inorganic component, the application should be classified in the relevant subgroups of both the inorganic additive and the polymeric component.

Insulating materials comprising compositions of different organic insulating materials are classified in each relevant subgroup (e.g. an insulating layer comprising a polyethylene and a polystyrene is classified in both H01B 3/441 and H01B 3/442).

Groups H01B 3/18, H01B 3/30, H01B 3/42, H01B 3/44 are only used when no relevant subgroup is available

The group H01B 3/30 is used for insulating materials characterized by predominantly by physical properties

No new documents are classified in H01B 3/308.

In H01B 3/47 the plastic is also classified in the relevant groups above

Liquids, e.g. oils (silicone oils H01B 3/46)
References relevant to classification in this group
This subclass/group does not cover:
Silicone oils
plastics; resins; waxes
Special rules of classification within this group

Group H01B 3/47 takes precedence over groups H01B 3/32 to H01B 3/46.

Waxes (silicone waxes H01B 3/46)
References relevant to classification in this group
This subclass/group does not cover:
Silicone waxes
Vinyl resins; Acrylic resins (silicones H01B 3/46)
References relevant to classification in this group
This subclass/group does not cover:
Silicones
fibrous materials (fibre-reinforced plastics H01B 3/47)
Definition statement
This subclass/group covers:

Insulators or insulating bodies characterised by the insulating materials comprising fibrous materials like fabric, wood, paper, press board

References relevant to classification in this group
This subclass/group does not cover:
Fibre-reinforced plastics
Non-insulated conductors or conductive bodies characterised by their form
Definition statement
This subclass/group covers:

Non-insulated electrical conductors or cables by their type; constructional details of non-insulated electrical conductors or cables.

References relevant to classification in this group
This subclass/group does not cover:
Conductors or conductive bodies characterised by the conductive material
Apparatus or processes for stranding-up

Examples of places (respective application fields) where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system, see application field:

Features peculiar to electrified wire fencing
Metal cables or ropes not for conducting electricity
Wire fencing
Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
ACSR
Aluminium conductor steel reinforced
ACSS
Aluminium conductor steel supported
ACCC
Aluminium conductor composite core
[N: Fence-wire not otherwise provided for (wire fencing E04H 17/02)]
References relevant to classification in this group
This subclass/group does not cover:

Examples of places (respective application fields) where the subject matter of this subclass is covered when specially adapted, used for a particular purpose, or incorporated in a larger system, see application field, e.g.:

Wire fencing
Several wires or the like stranded in the form of a rope
Definition statement
This subclass/group covers:

This group covers :

Overhead lines for high voltage power distribution, including overhead lines comprising thin protective layers, e.g. against corrosion or weather attack. Such thin protective layers are not considered as conductor insulation.

comprising conductive layers or films on insulating-supports (insulating-layers or insulating-films on metal bodies H01B 17/62)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Insulating-layers or insulating-films on metal bodies
Comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber (H01B 1/14, H01B 1/20 take precedence; insulating bodies with conductive admixtures H01B 17/64; conductive paints C09D 5/24)
References relevant to classification in this group
This subclass/group does not cover:
Conductive material dispersed in non-conductive inorganic material
Conductive material dispersed in non-conductive organic material
Insulating bodies with conductive admixtures
Informative references
Attention is drawn to the following places, which may be of interest for search:
Conductive paints
Insulated conductors or cables characterised by their form
Definition statement
This subclass/group covers:

Insulated electrical conductors or cables by their type; constructional details of insulated electrical conductors or cables.

References relevant to classification in this group
This subclass/group does not cover:
Insulation characterised by the insulating materials
Power cables with voltage ratings above about 1 KV, also welding cables, e.g. with current ratings above about 50 A
Insulators or insulating bodies

Examples of places (respective application fields) where the subject matter of this subclass is covered when specially adapted, used for a particular purpose, or incorporated in a larger system, see application field, e.g.:

Cables or wires comprising electrodes for implantation into the human body, e.g. heart electrode
Seismic cables
Non-integral, removable labels for electric cables
Cable systems in drilling arrangements
Informative references
Attention is drawn to the following places, which may be of interest for search:
Arrangements for storing and repeatedly paying-out and re-storing lengths of conductors or cables
B65H57/34
Code or colour marking of optical cables
Special rules of classification within this group

This group is subdivided either into insulated conductors or cables by their type, e.g.:

H01B 7/0045 (cable harnesses)

H01B 7/0054 (cables with incorporated electric resistances)

H01B 7/0063 (ignition cables)

H01B 7/0072 (electrical cables comprising fluid supply conductors)

H01B 7/0081 (cables of rigid construction)

H01B 7/009 (cables with build-in connection points or with predetermined areas for making deviations)

H01B 7/04 (flexible insulated cables, conductors or cords)

H01B 7/06 (extensible conductors or cables)

H01B 7/08 (flat or ribbon cables)

H01B 7/10 (contact cables)

H01B 7/12 (floating cables)

H01B 7/14 (submarine cables)

H01B 7/16 (rigid-tube cables)

or by general constructional details of insulated conductors or cables, e.g.:

H01B 7/0009 (details relating to the conductive cores)

H01B 7/02 (disposition of insulation)

H01B 7/17 (protection against damage caused by external factors)

H01B 7/30 (with arrangements for reducing conductor losses when carrying AC)

H01B 7/32 (with arrangements for indicating defects)

H01B 7/36 (with distinguishing or length marks)

H01B 7/38 (with arrangements for facilitating removal of insulation)

H01B 7/40 (with arrangements for facilitating mounting and securing)

H01B 7/42 (with arrangements for heat dissipation or conduction)

[N: Strip or foil conductors (H01B 7/08 takes precedence)]
References relevant to classification in this group
This subclass/group does not cover:
Flat or ribbon cables
[N: Cables of rigid construction (rigid-tube cables H01B 7/16)]
References relevant to classification in this group
This subclass/group does not cover:
Rigid-tube cables
Disposition of insulation (materials H01B 3/00; insulators H01B 17/00)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Insulation materials
Insulators
Extensible conductors or cables, e.g. self-coiling cords (arrangements for storing and repeatedly paying-out and re-storing lengths of conductors or cables B65H 75/34)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Arrangements for storing and repeatedly paying-out and re-storing lengths of conductors or cables
Floating cables (installations of cables supported on or from floats H02G 9/12)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Installations of cables supported on or from floats
Rigid-tube cables (heating elements of similar construction H05B)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Heating elements of similar construction
Protection against damage caused by external factors, e.g. sheaths or armouring (power cables with screens H01B 9/02; communication cables with screens H01B 11/06; [N: continuously-loaded cables H01B 11/14;] installation of conduits H02G)
References relevant to classification in this group
This subclass/group does not cover:
Power cables with screens
Communication cables with screens
Informative references
Attention is drawn to the following places, which may be of interest for search:
Continuously-loaded cables
Installation of conduits
[N: Protections not provided for in groups H01B 7/182 to H01B 7/26]
References relevant to classification in this group
This subclass/group does not cover:
Residual to
[N: Radial force absorbing layers providing a cushioning effect (H01B 7/185 takes precedence)]
References relevant to classification in this group
This subclass/group does not cover:
Sheaths comprising internal cavities or channels
Protection against damage caused by moisture, corrosion, chemical attack or weather [N: (sheaths, armoring H01B 7/18)]
Definition statement
This subclass/group covers:

Insulated conductors or cables characterised by their form: Protection against damage caused by moisture, corrosion, chemical attack or weather

Informative references
Attention is drawn to the following places, which may be of interest for search:
Sheaths, armoring
Preventing penetration of fluid [N: , e.g. water or humidity,] into conductor or cable (insulators or insulating bodies with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like, H01B 17/50)
References relevant to classification in this group
This subclass/group does not cover:
Insulators or insulating bodies with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt
Protection against damage caused by extremes of temperature or by flame
Definition statement
This subclass/group covers:

Protection of cables against damage caused by extremes of temperature or by flame

References relevant to classification in this group
This subclass/group does not cover:
Sheaths, amouring
Heat dissipation or conduction
with arrangements for indicating defects, e.g. breaks, leaks, (locating defects by measuring G01)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Locating defects by measuring
G01
with arrangements for heat dissipation or conduction (insulators or insulating bodies having heating or cooling devices H01B 17/54)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Insulators or insulating bodies characterised by their form having heating or cooling devices
Power cables
Definition statement
This subclass/group covers:

Electrical power cables by their type, wherein voltage ratings are typical above about 1 KV and/or current ratings are typical above about 50 A; constructional details of power cables.

References relevant to classification in this group
This subclass/group does not cover:
Flexible power cables for e.g. portable tools, mobile objects and machinery

Examples of places (respective application fields) where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system, see application field, e.g.:

Cables comprising optical elements and electrical power conductors, where the optical aspect is of interest
Bus-bars
Informative references
Attention is drawn to the following places, which may be of interest for search:
Arc welding, accessories
Special rules of classification within this group

This group is subdivided either into power cables by their type, e.g.:

H01B 9/001 (welding cables)

H01B 9/008 (for overhead application)

H01B 9/04 (concentric cables)

H01B 9/06 (gas-pressure, oil-pressure cables or cables for use in conduits under pressure)

or by general constructional details of power cables, e.g.:

H01B 9/006 (constructional features relating to the conductors)

H01B 9/003 (including electrical control or communication wires)

H01B 9/005 (including optical transmission elements)

H01B 9/02 (with screens or conductive layers)

Communication cables or conductors (waveguides H01P)
Definition statement
This subclass/group covers:

Electrical communication cables carrying telecommunication or data signals in a frequency range less than the microwave range (less than several hundred MHz).

References relevant to classification in this group
This subclass/group does not cover:
Communication cables inside power cables
Coaxial cables being a waveguide handling frequencies in the several hundred MHz range (e.g. microwaves)
Coaxial cables functioning as an antenna
Informative references
Attention is drawn to the following places, which may be of interest for search:
Internal space filling-up means, e.g. splines
Special rules of classification within this group

This group is subdivided either into communication cables by their type, e.g.:

H01B 11/02 (communication cables with twisted pairs or quads)

H01B 11/18 (coaxial cables)

H01B 11/22 (communication cables including at least one electrical conductor together with optical fibres)

or by general constructional details of communication cables, e.g.:

H01B 11/002 (pair constructions)

H01B 11/005 (quad constructions)

Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
ANEXT
alien near end cross talk
Cables with twisted pairs or quads (transposing, crossing or twisting at joints H04B; balancing of earth capacitance H04B)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Transposing, crossing or twisting at joints
Balancing of earth capacitance
with pairs or quads mutually positioned to reduce cross-talk (balancing by making use of additional capacitors or coils H04B)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Balancing by making use of additional capacitors or coils
with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screen (screening in general H05K 9/00)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Screening in general
Arrangements for exhibiting specific transmission characteristics (loading coils per se H01F 17/08; coil-loaded circuits H04B)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Loading coils per se
Coil-loaded circuits
Cables, e.g. submarine cables, with coils or other devices incorporated during cable manufacture (junction boxes for cables H02G 15/10)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Junction boxes for cables
Co-axial cables; Analogous cables having more than one inner conductor within a common outer conductor
Special rules of classification within this group

If suitable for handling frequencies considerably beyond the audio range and if typical HF-features of coaxial cables are disclosed, e.g. propagation of non-TEM modes, multimoding, oversized coaxial cables, particular cross-section adapted for HF-propagation, classification is made in H01P 3/06.

Superconductive or hyperconductive conductors, cables, or transmission lines (details or devices using superconductivity or hyperconductivity characterised by the material H01L 39/12)
Definition statement
This subclass/group covers:
  • Superconductive conductors, cables or transmission lines characterised by their form;
  • Processes specially adapted for manufacturing superconductive conductors, cables or transmission lines.
Informative references
Attention is drawn to the following places, which may be of interest for search:
Superconducting coils
Details or devices using superconductivity or hyperconductivity characterised by the material
Processes peculiar to the manufacture or treatment of filaments of superconductive composite wires
characterised by their form
References relevant to classification in this group
This subclass/group does not cover:

The groups H01B 12/04 to H01B 12/10 do not cover:

Hollow conductors
Special rules of classification within this group

Group H01B 12/12 takes precedence over groups H01B 12/04 to H01B 12/10

Apparatus or processes specially adapted for manufacturing conductors or cables
Definition statement
This subclass/group covers:

Apparatus or processes specially adapted for manufacturing non-insulated or insulated electrical conductors, wires or cables.

References relevant to classification in this group
This subclass/group does not cover:
Apparatus or processes specially adapted for manufacturing superconductive cables

Examples of places (respective application fields) where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system, see application field, e.g.:

Stranding metal cables or ropes not for conducting electricity
Wire processing before connecting to contact members
Special rules of classification within this group

Subgroups comprising apparatus or processes for manufacturing particular types of electrical conductors or cables, e.g.:

H01B 13/004 (manufacturing rigid-tube cables)

H01B 13/008 (manufacturing extensible conductors or cables)

H01B 13/012 (manufacturing wire harnesses)

H01B 13/016 (manufacturing coaxial cables)

Subgroups comprising apparatus or processes for a particular production step for manufacturing electrical conductors or cables, e.g.:

H01B 13/0003 (for feeding conductors or cables)

H01B 13/0006 (for reducing the size of conductors or cables)

H01B 13/0009 (for forming corrugations on conductors or cables)

H01B 13/0013 (for embedding wires in plastic layers)

H01B 13/0016 (for heat treatment)

H01B 13/0023 (for welding together plastic insulated wires side-by-side)

H01B 13/0026 (for manufacturing conducting or semi-conducting layers)

H01B 13/003 (using irradiation)

H01B 13/0033 (electrostatic coating)

H01B 13/0036 (details)

H01B 13/02 (stranding-up)

H01B 13/06 (insulating conductors or cables)

H01B 13/22 (sheeting, armouring, screening or applying other protective layer)

H01B 13/28 (applying continuous inductive loading)

H01B 13/32 (filling or coating with impervious material)

H01B 13/34 (for marking conductors or cables)

for manufacturing co-axial cables (applying discontinuous insulation H01B 13/20)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Applying discontinuous insulation
Stranding-up (stranding-up ropes D07B)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Stranding-up ropes
[N: being rollers, pulleys, drums or belts (H01B 13/0242 takes precedence)]
References relevant to classification in this group
This subclass/group does not cover:
Accumulator
Insulating conductors or cables (H01B 13/32 takes precedence)
References relevant to classification in this group
This subclass/group does not cover:
Filling or coating with impervious material
[N: Insulating coaxial cables (H01B 13/20 takes precedence)]
References relevant to classification in this group
This subclass/group does not cover:
Applying discontinuous insulation for concentric or coaxial cables
Apparatus or processes specially adapted for manufacturing conductors or cables by extrusion
Definition statement
This subclass/group covers:

Apparatus or processes specially adapted for manufacturing conductors or cables by extrusion

Informative references
Attention is drawn to the following places, which may be of interest for search:
Extrusion in general
Measuring thickness
Testing during manufacturing
[N: Controlling the extrusion apparatus dependent on the capacitance or the thickness of the insulating material (measuring thickness G01B; testing during manufacturing G01R 31/022)]
Informative references
Attention is drawn to the following places, which may be of interest for search:
Measuring thickness
Testing during manufacturing
Sheathing; Armouring; Screening; Applying other protective layers (H01B 13/32 takes precedence)
References relevant to classification in this group
This subclass/group does not cover:
Filling or coating with impervious material
by extrusion [N: (extrusion of cables with plastic material in general B29C 47/02)]
Definition statement
This subclass/group covers:

Apparatus or processes specially adapted for manufacturing conductors or cables by extrusion, wherein the protective layer is produced by extrusion.

References relevant to classification in this group
This subclass/group does not cover:
Apparatus or processes specially adapted for manufacturing conductors or cables by extrusion, wherein the insulating layer is produced by extrusion
Informative references
Attention is drawn to the following places, which may be of interest for search:
Extrusion in general
Measuring thickness
Testing during manufacturing
by winding, braiding, or longitudinal lapping (winding in general B65H)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Winding in general
Drying (in general F26B); Impregnating (H01B 13/32 takes precedence; [N: impregnating of fibres D06B 3/00, D06B 5/00; H01G 4/00, H01G 4/06; drying and impregnating of wood or the like B27K; impregnation of stones, basic materials therefor C04B 20/10 to C04B 20/12, C04B 41/45 to C04B 41/52])
Definition statement
This subclass/group covers:

Apparatus or processes specially adapted for manufacturing conductors or cables by drying

References relevant to classification in this group
This subclass/group does not cover:
Impregnating of cables
Informative references
Attention is drawn to the following places, which may be of interest for search:
Drying and impregnating of wood or the like
Impregnation of stones, basic materials therefor
Impregnating of fibres
Drying in general
Fixed capacitors; Processes of their manufacture
Fixed capacitors; Processes of their manufacture; Solid dielectrics
Filling or coating with impervious material (for cable installations H02G 15/00)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cable installations
Apparatus or processes for salvaging material from cables (for removing insulation from conductors H02G 1/12)
Definition statement
This subclass/group covers:

Dismantling of electric cables, e.g. for recycling.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Apparatus or processes for removing insulation from conductors
Insulators or insulating bodies characterised by their form (section insulators for electric traction B60M 1/18; insulating rail-joints E01B 11/54)
Definition statement
This subclass/group covers:

Electrical insulators being separate basic electric elements; constructional details of electrical insulators.

References relevant to classification in this group
This subclass/group does not cover:
Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
Informative references
Attention is drawn to the following places, which may be of interest for search:
Feed-throughs structurally associated with medical devices, e.g. for electrotherapy
Section insulators for electric traction
Insulating rail-joints
Leading of conductors through casings, structurally associated with transformers or inductances
Fixed capacitor being a feed-through capacitor
Insulators structurally associated with switchgear
Arrangements leading cables or lines through walls
Special rules of classification within this group

This group is subdivided either into insulators or insulating bodies by their type, e.g.:

H01B 17/02 (suspension insulators)

H01B 17/14 (supporting insulators)

H01B 17/20 (pin insulators)

H01B 17/24 (apertured insulators)

H01B 17/26 (lead-in insulators, lead-through insulators, bushings)

or by general constructional details of insulators or insulating bodies, e.g.:

H01B 17/005 (with build-in electrical equipment)

H01B 17/32 (single insulators consisting of two or more dissimilar insulating bodies)

H01B 17/34 (insulators containing liquid, e.g. oil)

H01B 17/36 (insulators having evacuated or gas-filled spaces)

H01B 17/38 (fittings)

H01B 17/42 (means for obtaining improved distribution of voltage)

H01B 17/50 (with surfaces specially treated for preserving insulating properties)

H01B 17/52 (having cleaning devices)

H01B 17/54 (having heating or cooling devices)

Special features of strain insulators (devices for relieving mechanical tension of electric lines or cables H02G 7/04)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Devices for relieving mechanical tension of electric lines or cables
Supporting insulators (pin insulators H01B 17/20; apertured insulators H01B 17/24)
References relevant to classification in this group
This subclass/group does not cover:
Pin insulators
Apertured insulators
[N: Fastening of insulators to support (H01B 17/301 takes precedence)]
References relevant to classification in this group
This subclass/group does not cover:
Lead-in insulators; lead-through insulators; Sealing of insulators to support
Capacitor type (capacitors H01G)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Capacitors
Sealing (packings in general F16J)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Packings in general
Means for obtaining improved distribution of voltage (capacitor-type lead-through insulators H01B 17/28); Protection against arc discharges
Informative references
Attention is drawn to the following places, which may be of interest for search:
Capacitor-type lead-through insulators
Structural association of insulators with corona rings (corona rings H01T 19/02)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Corona rings
Means for providing an external arc-discharge path (spark-gap arresters H01T)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Spark-gap arresters
having cleaning devices (H01B 17/54 takes precedence)
References relevant to classification in this group
This subclass/group does not cover:
Insulators or insulating bodies having heating or cooling devices
Insulating bodies (insulators H01B 17/02 to H01B 17/54)
References relevant to classification in this group
This subclass/group does not cover:
Insulators
Tubes, sleeves, beads, or bobbins through which the conductor passes (protective tubings for the installation of lines or cables in buildings H02G 3/04)
References relevant to classification in this group
This subclass/group does not cover:
Protective tubings for the installation of lines or cables in buildings
Composite insulating bodies (cables or conductors H01B 7/00, H01B 9/00; resistors H01C; capacitors H01G)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cables or conductors
Resistors
Capacitors
Insulating-layers or insulating films on metal bodies (conductive layers or films on insulating-bodies H01B 5/14)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Conductive layers or films on insulating-bodies
with conductive admixtures, inserts, or layers (conductive bodies comprising conductive material dispersed in insulating material H01B 5/16)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Conductive bodies comprising conductive material dispersed in insulating material
Apparatus or processes specially adapted for manufacturing insulators or insulating bodies [N: (manufacture of porcelain for electric insulation C04B 33/26)]
Definition statement
This subclass/group covers:

Apparatus or processes specially adapted for manufacturing insulators or insulating bodies

References relevant to classification in this group
This subclass/group does not cover:
Manufacture of porcelain for electric insulation
This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013