|  | H |
SECTION H — ELECTRICITY

|  | H01 |
BASIC ELECTRIC ELEMENTS

|  | H01 |
Note(s) Processes involving only a single technical art, e.g. drying, coating, for which provision exists elsewhere are classified in the relevant class for that art.

|  | H01B |
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES (selection for magnetic properties Fulltext... Hierarchy... Expanded...H01F 1/00; waveguides Fulltext... Hierarchy... Expanded...H01P; installation of cables or lines Fulltext... Hierarchy... Expanded...H02G)

|  | H01B |
Note(s) Group Fulltext... Hierarchy... Expanded...H01B 12/00 takes precedence over groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...H01B 5/00-H01B 11/00.

|  | H01B 1/00 |
Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors (selection of materials for superconductivity Fulltext... Hierarchy... Expanded...H01L 39/00)

|  | H01B 1/02 |
· | mainly consisting of metals or alloys

|  | H01B 1/04 |
· | mainly consisting of carbon, silicon or carbon-silicon compounds

|  | H01B 1/06 |
· | mainly consisting of other non-metallic substances

|  | H01B 1/08 |
· · | oxides

|  | H01B 1/10 |
· · | sulphides

|  | H01B 3/00 |
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 Fulltext... Hierarchy... Expanded...H01L 41/00)

|  | H01B 3/02 |
· | mainly consisting of inorganic substances

|  | H01B 3/04 |
· · | mica

|  | H01B 3/06 |
· · | asbestos

|  | H01B 3/08 |
· · | quartz; glass; glass wool; slag wool; vitreous enamels

|  | H01B 3/10 |
· · | metallic oxides (ceramics Fulltext... Hierarchy... Expanded...H01B 3/12)

|  | H01B 3/12 |
· · | ceramics

|  | H01B 3/14 |
· · | cements

|  | H01B 3/16 |
· · | gases

|  | H01B 3/18 |
· | mainly consisting of organic substances

|  | H01B 3/20 |
· · | liquids, e.g. oils (silicone oils Fulltext... Hierarchy... Expanded...H01B 3/46)

|  | H01B 3/22 |
· · · | hydrocarbons

|  | H01B 3/24 |
· · · | containing halogen in the molecules, e.g. halogenated oils

|  | H01B 3/26 |
· · | asphalts; bitumens; pitches

|  | H01B 3/28 |
· · | natural or synthetic rubbers

|  | H01B 3/30 |
· · | resins; waxes

|  | H01B 3/32 |
· · · | natural resins

|  | H01B 3/34 |
· · · | waxes (silicone waxes Fulltext... Hierarchy... Expanded...H01B 3/46)

|  | H01B 3/36 |
· · · | condensation products of phenols with aldehydes or ketones

|  | H01B 3/38 |
· · · | condensation products of aldehydes with amines or amides

|  | H01B 3/40 |
· · · | epoxy resins

|  | H01B 3/42 |
· · · | polyesters; polyethers; polyacetals

|  | H01B 3/44 |
· · · | vinyl resins; acrylic resins (silicones Fulltext... Hierarchy... Expanded...H01B 3/46)

|  | H01B 3/46 |
· · · | silicones

|  | H01B 3/48 |
· · | fibrous materials

|  | H01B 3/50 |
· · · | fabric

|  | H01B 3/52 |
· · · | wood; paper; pressboard

|  | H01B 3/54 |
· · · | hard paper; hard fabrics

|  | H01B 3/56 |
· · | gases

|  | H01B 5/00 |
Non-insulated conductors or conductive bodies characterised by their form

|  | H01B 5/02 |
· | Single bars, rods, wires, or strips

|  | H01B 5/04 |
· · | wound or coiled

|  | H01B 5/06 |
· | Single tubes

|  | H01B 5/08 |
· | Several wires or the like stranded in the form of a rope

|  | H01B 5/10 |
· · | stranded around a space, insulating material, or dissimilar conducting material

|  | H01B 5/12 |
· | Braided wires or the like

|  | H01B 5/14 |
· | comprising conductive layers or films on insulating-supports (insulating-layers or insulating-films on metal bodies Fulltext... Hierarchy... Expanded...H01B 17/62)

|  | H01B 5/16 |
· | Comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber (insulating bodies with conductive admixtures Fulltext... Hierarchy... Expanded...H01B 17/64; conductive paints Fulltext... Hierarchy... Expanded...C09D 5/24)

|  | H01B 7/00 |
Insulated conductors or cables characterised by their form

|  | H01B 7/02 |
· | Disposition of insulation (materials Fulltext... Hierarchy... Expanded...H01B 3/00; insulators Fulltext... Hierarchy... Expanded...H01B 17/00)

|  | H01B 7/04 |
· | Flexible cables, conductors, or cords, e.g. trailing cables

|  | H01B 7/06 |
· | Extensible conductors or cables, e.g. self-coiling cords (installations using extensible carrier for the cable Fulltext... Hierarchy... Expanded...H02G 11/06)

|  | H01B 7/08 |
· | Flat or ribbon cables

|  | H01B 7/10 |
· | Contact cables, i.e. having conductors which may be brought into contact by distortion of the cable

|  | H01B 7/12 |
· | Floating cables (installations of cables supported on or from floats Fulltext... Hierarchy... Expanded...H02G 9/12)

|  | H01B 7/14 |
· | Submarine cables

|  | H01B 7/16 |
· | Rigid-tube cables (heating elements of similar construction Fulltext... Hierarchy... Expanded...H05B)

|  | H01B 7/18 |
· | Sheaths; Armouring; Other protection against mechanical force or pressure (power cables with screens Fulltext... Hierarchy... Expanded...H01B 9/02; communication cables with screens Fulltext... Hierarchy... Expanded...H01B 11/06; continuously-loaded cables Fulltext... Hierarchy... Expanded...H01B 11/14; installation of conduits Fulltext... Hierarchy... Expanded...H02G)

|  | H01B 7/20 |
· · | Metal tubes, e.g. lead sheaths

|  | H01B 7/22 |
· · | Metal wires or tapes, e.g. made of steel

|  | H01B 7/24 |
· · | Devices affording localised protection against mechanical force or pressure

|  | H01B 7/26 |
· · | Reduction of losses in sheaths or armouring

|  | H01B 7/28 |
· | Protection, e.g. against corrosion, chemical attack, influence of weather (sheaths, armouring Fulltext... Hierarchy... Expanded...H01B 7/18)

|  | H01B 7/30 |
· | with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect

|  | H01B 7/32 |
· | with arrangements for indicating defects, e.g. breaks, leaks (locating defects by measuring Fulltext... Hierarchy... Expanded...G01)

|  | H01B 7/34 |
· | with arrangements for heat dissipation, shielding, or conduction

|  | H01B 7/36 |
· | with distinguishing or length marks

|  | H01B 9/00 |
Power cables

|  | H01B 9/02 |
· | with screens or conductive layers, e.g. for avoiding large potential gradients

|  | H01B 9/04 |
· | Concentric cables

|  | H01B 9/06 |
· | Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure

|  | H01B 11/00 |
Communication cables or conductors (waveguides Fulltext... Hierarchy... Expanded...H01P)

|  | H01B 11/02 |
· | Cables with twisted pairs or quads (transposing, crossing, or twisting at joints Fulltext... Hierarchy... Expanded...H04B; balancing of earth capacitance Fulltext... Hierarchy... Expanded...H04B)

|  | H01B 11/04 |
· · | with pairs or quads mutually positioned to reduce cross-talk (balancing by making use of additional capacitors or coils Fulltext... Hierarchy... Expanded...H04B)

|  | H01B 11/06 |
· · | with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screen (screening in general Fulltext... Hierarchy... Expanded...H05K 9/00)

|  | H01B 11/08 |
· · · | Screens specially adapted for reducing cross-talk

|  | H01B 11/10 |
· · · | Screens specially adapted for reducing interference from external sources

|  | H01B 11/12 |
· · | Arrangements for exhibiting specific transmission characteristics (loading coils per se Fulltext... Hierarchy... Expanded...H01F 17/08; coil-loaded circuits Fulltext... Hierarchy... Expanded...H04B)

|  | H01B 11/14 |
· · · | Continuously inductively loaded cables, e.g. Krarup cables

|  | H01B 11/16 |
· · · | Cables, e.g. submarine cable, with coils or other devices incorporated during cable manufacture (junction boxes for cables Fulltext... Hierarchy... Expanded...H02G 15/10)

|  | H01B 11/18 |
· | Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor (suitable for handling frequencies considerably beyond the audio range Fulltext... Hierarchy... Expanded...H01P 3/06)

|  | H01B 11/20 |
· · | Cables having a multiplicity of similar coaxial lines

|  | H01B 12/00 |
Superconductive or hyperconductive cables or transmission lines [2]

|  | H01B 13/00 |
Apparatus or processes specially adapted for manufacturing conductors or cables

|  | H01B 13/02 |
· | Stranding-up (stranding-up ropes Fulltext... Hierarchy... Expanded...D07B)

|  | H01B 13/04 |
· · | Mutually-positioning pairs or quads to reduce cross-talk

|  | H01B 13/06 |
· | Insulating conductors or cables

|  | H01B 13/08 |
· · | by winding

|  | H01B 13/10 |
· · | by longitudinal lapping

|  | H01B 13/12 |
· · | by applying loose fibres

|  | H01B 13/14 |
· · | by extrusion

|  | H01B 13/16 |
· · | by passing through, or dipping in, a liquid bath; by spraying

|  | H01B 13/18 |
· · | Applying discontinuous insulation, e.g. discs, beads

|  | H01B 13/20 |
· · · | for concentric or coaxial cables

|  | H01B 13/22 |
· | Sheathing; Armouring; Screening; Applying other protective layers

|  | H01B 13/24 |
· · | by extrusion

|  | H01B 13/26 |
· · | by winding, braiding, or longitudinal lapping (winding in general Fulltext... Hierarchy... Expanded...B65H)

|  | H01B 13/28 |
· | Applying continuous inductive loading, e.g. Krarup loading

|  | H01B 13/30 |
· | Drying (in general Fulltext... Hierarchy... Expanded...F26B); Impregnating

|  | H01B 15/00 |
Apparatus or processes for salvaging material from cables (for removing insulation from conductors Fulltext... Hierarchy... Expanded...H02G 1/12)

|  | H01B 17/00 |
Insulators or insulating bodies characterised by their form (section insulators for electric traction Fulltext... Hierarchy... Expanded...B60M 1/18; insulating rail-joints Fulltext... Hierarchy... Expanded...E01B 11/54)

|  | H01B 17/02 |
· | Suspension insulators; Strain insulators

|  | H01B 17/04 |
· · | Chains; Multiple chains

|  | H01B 17/06 |
· · | Fastening of insulator to support, to conductor, or to adjoining insulator

|  | H01B 17/08 |
· · · | by cap-and-bolt

|  | H01B 17/10 |
· · · | by intermediate link

|  | H01B 17/12 |
· · | Special features of strain insulators (devices for relieving mechanical tension from electric connections Fulltext... Hierarchy... Expanded...H02G 7/04)

|  | H01B 17/14 |
· | Supporting insulators (pin insulators Fulltext... Hierarchy... Expanded...H01B 17/20; apertured insulators Fulltext... Hierarchy... Expanded...H01B 17/24)

|  | H01B 17/16 |
· · | Fastening of insulators to support, to conductor, or to adjoining insulator

|  | H01B 17/18 |
· · | for very heavy conductors, e.g. bus-bars, rails

|  | H01B 17/20 |
· | Pin insulators

|  | H01B 17/22 |
· · | Fastening of conductors to insulator

|  | H01B 17/24 |
· | Insulators apertured for fixing by nail, screw, wire, or bar, e.g. diabolo, bobbin

|  | H01B 17/26 |
· | Lead-in insulators; Lead-through insulators

|  | H01B 17/28 |
· · | Capacitor type (capacitors Fulltext... Hierarchy... Expanded...H01G)

|  | H01B 17/30 |
· · | Sealing (packings in general Fulltext... Hierarchy... Expanded...F16J)

|  | 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, e.g. caps; Fastenings therefor

|  | H01B 17/40 |
· · | Cementless fittings

|  | H01B 17/42 |
· | Means for obtaining improved distribution of voltage (capacitor-type lead-through insulators Fulltext... Hierarchy... Expanded...H01B 17/28); Protection against arc discharges

|  | H01B 17/44 |
· · | Structural association of insulators with corona rings (corona rings Fulltext... Hierarchy... Expanded...H01T 19/02)

|  | H01B 17/46 |
· · | Means for providing an external arc-discharge path (spark-gap arresters Fulltext... Hierarchy... Expanded...H01T)

|  | H01B 17/48 |
· · | over chains or other serially-arranged insulators

|  | H01B 17/50 |
· | with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, etc.

|  | H01B 17/52 |
· | having cleaning devices (Fulltext... Hierarchy... Expanded...H01B 17/54 takes precedence)

|  | H01B 17/54 |
· | having heating or cooling devices

|  | H01B 17/56 |
· | Insulating bodies (insulators Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...H01B 17/02-H01B 17/54)

|  | H01B 17/58 |
· · | Tubes, sleeves, beads, or bobbins through which the conductor passes (protective tubings for the installation of lines or cables in buildings Fulltext... Hierarchy... Expanded...H02G 3/04)

|  | H01B 17/60 |
· · | Composite insulating bodies (cables or conductors Fulltext... Hierarchy... Expanded...H01B 7/00, Fulltext... Hierarchy... Expanded...H01B 9/00; resistors Fulltext... Hierarchy... Expanded...H01C; capacitors Fulltext... Hierarchy... Expanded...H01G)

|  | H01B 17/62 |
· · | Insulating-layers or insulating-films on metal bodies (conductive layers or films on insulating bodies Fulltext... Hierarchy... Expanded...H01B 5/14)

|  | H01B 17/64 |
· · | with conductive admixtures, inserts, or layers (conductive bodies comprising conductive material dispersed in insulating material Fulltext... Hierarchy... Expanded...H01B 5/16)

|  | H01B 17/66 |
· · | Joining insulating bodies together, e.g. by bonding

|  | H01B 19/00 |
Apparatus or processes specially adapted for manufacturing insulators or insulating bodies

|  | H01B 19/02 |
· | Drying (in general Fulltext... Hierarchy... Expanded...F26B); Impregnating

|  | H01B 19/04 |
· | Treating the surfaces, e.g. applying coatings