H
SECTION H — ELECTRICITY
 H

Note(s)

These Notes cover the basic principles and general instructions for use of section H.

  1. Section H covers:
    1. basic electric elements, which cover all electric units and the general mechanical structure of apparatus and circuits, including the assembly of various basic elements into what are called printed circuits and also cover to a certain extent the manufacture of these elements (when not covered elsewhere);
    2. generation of electricity, which covers the generation, conversion and distribution of electricity together with the controlling of the corresponding gear;
    3. applied electricity, which covers:
      1. general utilisation techniques, viz. those of electric heating and electric lighting circuits;
      2. some special utilisation techniques, either electric or electronic in the strict sense, which are not covered by other sections of the Classification, including:
        1. electric light sources, including lasers;
        2. electric X-ray technique;
        3. electric plasma technique and the generation and acceleration of electrically charged particles or neutrons;
    4. basic electronic circuits and their control;
    5. radio or electric communication technique;
    6. the use of a specified material for the manufacture of the article or element described. In this connection, paragraphs 88 to 90 of the Guide should be referred to.
  2. In this section, the following general rules apply:
    1. Subject to the exceptions stated in I(c), above, any electric aspect or part peculiar to a particular operation, process, apparatus, object or article, classified in one of the sections of the Classification other than section H, is always classified in the subclass for that operation, process, apparatus, object or article. Where common characteristics concerning technical subjects of similar nature have been brought out at class level, the electric aspect or part is classified, in conjunction with the operation, process, apparatus, object or article, in a subclass which covers entirely the general electrical applications for the technical subject in question;
    2. The electrical applications referred to under (a), above, either general or particular, include:
      1. the therapeutic processes and apparatus, in class A61;
      2. the electric processes and apparatus used in various laboratory or industrial operations, in classes B01 and B03 and in subclass B23K;
      3. the electricity supply, electric propulsion and electric lighting of vehicles in general and of particular vehicles, in the subsection "Transporting" of section B;
      4. the electric ignition systems of internal-combustion engines, in subclass F02P, and of combustion apparatus in general, in subclass F23Q;
      5. the whole electrical part of section G, i.e. measuring devices including apparatus for measuring electric variables, checking, signalling and calculating. Electricity in that section is generally dealt with as a means and not as an end in itself;
    3. All electrical applications, both general and particular, presuppose that the "basic electricity" aspect appears in section H (see I(a) above) as regards the electric "basic elements" which they comprise. This rule is also valid for applied electricity, referred to in I(c), above, which appears in section H itself.
  3. In this section, the following special cases occur:
    1. Among the general applications covered by sections other than section H, it is worth noting that electric heating in general is covered by subclasses F24D or F24H or class F27, and that electric lighting in general is partly covered by class F21, since in section H (see I(c), above) there are places in H05B which cover the same technical subjects;
    2. In the two cases referred to under (a), above, the subclasses of section F, which deal with the respective subjects, essentially cover in the first place the whole mechanical aspect of the apparatus or devices, whereas the electrical aspect, as such, is covered by subclass H05B;
    3. In the case of lighting, this mechanical aspect should be taken to cover the material arrangement of the various electric elements, i.e., their geometrical or physical position in relation to one another; this aspect is covered by subclass F21V, the elements themselves and the primary circuits remaining in section H. The same applies to electric light sources, when combined with light sources of a different kind. These are covered by subclass H05B, whereas the physical arrangement which their combination constitutes is covered by the various subclasses of class F21;
    4. As regards heating, not only the electric elements and circuitry designs, as such, are covered by subclass H05B, but also the electric aspects of their arrangement, where these concern cases of general application; electric furnaces being considered as such. The physical disposition of the electric elements in furnaces is covered by section F. If a comparison is made with electric welding circuits, which are covered by subclass B23K in connection with welding, it can be seen that electric heating is not covered by the general rule stated in II, above.

 H02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
 H02G
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES (insulated conductors or cables with arrangements for facilitating mounting or securing H01B 7/00; distribution points incorporating switches H02B; guiding telephone cords H04M 1/15; cable ducts or mountings for telephone or telegraph exchange installations H04Q 1/02)
 H02G

Note(s)

  1. This subclass covers installation of communication cables or lines, including those comprising a combination of optical and electrical conductors, or of lightning conductors as well as installation of power cables or lines.
  2. This subclass does not cover installation of purely optical cables, which is covered by group G02B 6/46.  [6]
  3. In this subclass, the following expression is used with the meaning indicated:  [6]
    • "electric cable" includes cables comprising optical conductors, e.g. fibres, in combination with electrical conductors.  [6]
 H02G
Subclass index
PRINCIPAL TYPES OF INSTALLATIONS
Inside; overhead; underground or underwater 3/00; 7/00; 9/00
SPECIAL INSTALLATIONS
Of bus-bars; of lightning conductors; of movable parts 5/00; 13/00; 11/00
CABLE FITTINGS 15/00
INSTALLING, MAINTAINING, REPAIRING 1/00
P:70 H02G 1/00
Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines
 H02G 1/02
·  for overhead lines or cables
 H02G 1/04
·  ·  for mounting or stretching (wire stretchers in general B25B 25/00)
 H02G 1/06
·  for laying cables, e.g. laying apparatus on vehicle (combined with trench digging or back-filling machines or dredgers E02F 5/00)
 H02G 1/08
·  ·  through tubing or conduit, e.g. rod or draw wire for pushing or pulling
 H02G 1/10
·  ·  in or under water
 H02G 1/12
·  for removing insulation or armouring from cables, e.g. from the end thereof (pliers in general B25B; cutters in general B26B; insulated conductors or cables with arrangements for facilitating removal of insulation H01B 7/00)
 H02G 1/14
·  for joining or terminating cables (joining electric conductors H01R 43/00)
P:50 H02G 3/00
Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles (installations of bus-bars H02G 5/00; overhead installations H02G 7/00; installations in or on the ground H02G 9/00; channels or vertical ducts for receiving utility lines E04F 17/00; wiring of electric apparatus in general H05K)
 H02G 3/02
·  Details
 H02G 3/04
·  ·  Protective tubing or conduits, e.g. cable ladders, cable troughs (pipes or tubing in general F16L)
 H02G 3/08
·  ·  Distribution boxes; Connection or junction boxes (cable terminations H02G 15/02)
 H02G 3/12
·  ·  ·  for flush mounting
 H02G 3/14
·  ·  ·  Fastening of cover or lid to box
 H02G 3/16
·  ·  ·  structurally associated with support for line-connecting terminals within the box (terminals H01R 9/00)
 H02G 3/18
·  ·  ·  providing line outlets
 H02G 3/22
·  Installations of cables or lines through walls, floors, or ceilings, e.g. into buildings (devices for use where pipes or cables pass through walls or partitions F16L 5/00; lead-in or lead-through insulators H01B 17/26; insulating tubes or sleeves H01B 17/58)
 H02G 3/30
·  Installations of cables or lines on walls, floors or ceilings (supports for pipes, cables or protective tubing F16L 3/00; hose-clips F16L 33/02)  [7]
 H02G 3/36
·  Installations of cables or lines in walls, floors or ceilings (H02G 3/22 takes precedence)  [7]
P:10 H02G 5/00
Installations of bus-bars
P:30 H02G 7/00
Overhead installations of electric lines or cables (installations of bus-bars H02G 5/00; trolley wires or contact lines for electric railways B60M; fastening conductors to insulators H01B 17/00, e.g. H01B 17/02, H01B 17/14; protection against abnormal electric conditions H01H; hook contacts for temporary connections to overhead lines H01R 11/11)
 H02G 7/02
·  Devices for adjusting or maintaining mechanical tension, e.g. take-up device
 H02G 7/16
·  Devices for removing snow or ice from lines or cables (from insulators H01B 17/00)
 H02G 7/20
·  Spatial arrangements or dispositions of lines or cables on poles, posts, or towers (construction of poles, posts, or towers E04H 12/22)
P:40 H02G 9/00
Installations of electric cables or lines in or on the ground or water (cathodic protection C23F 13/00; detection of buried cables G01V)
 H02G 9/06
·  in underground tubes or conduits; Tubes or conduits therefor
P:20 H02G 11/00
Arrangements of electric cables or lines between relatively-movable parts (current collectors H01R)
P:0 H02G 13/00
Installations of lightning conductors; Fastening thereof to supporting structure (indicating, counting or recording lightning strokes G01; lightning arrestors H01C 7/12, H01C 8/00, H01G 9/18, H01T; earth plates, pins or other contacts H01R)
P:60 H02G 15/00
Cable fittings
 H02G 15/007
·  Devices for relieving mechanical stress  [3]
 H02G 15/02
·  Cable terminations (for gas- or oil-filled cables H02G 15/00)
 H02G 15/08
·  Cable junctions (for gas or oil filled cables H02G 15/00; disconnectable junctions, electrical connections H01R)
 H02G 15/10
·  ·  protected by boxes, e.g. by distribution, connection or junction boxes (terminal blocks H01R 9/00)
 H02G 15/18
·  ·  protected by sleeves, e.g. for communication cable (two-part covers H02G 15/10)