GB2480484A - Electrical cable capping - Google Patents

Electrical cable capping Download PDF

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Publication number
GB2480484A
GB2480484A GB1008437A GB201008437A GB2480484A GB 2480484 A GB2480484 A GB 2480484A GB 1008437 A GB1008437 A GB 1008437A GB 201008437 A GB201008437 A GB 201008437A GB 2480484 A GB2480484 A GB 2480484A
Authority
GB
United Kingdom
Prior art keywords
elongate
housing element
electrical cable
elongate housing
capping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1008437A
Other versions
GB201008437D0 (en
GB2480484B (en
Inventor
Budha Singh Dhinjan
Jaswinder Singh Dhinjan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1008437.4A priority Critical patent/GB2480484B/en
Publication of GB201008437D0 publication Critical patent/GB201008437D0/en
Publication of GB2480484A publication Critical patent/GB2480484A/en
Application granted granted Critical
Publication of GB2480484B publication Critical patent/GB2480484B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0431Wall trunking
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/06Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0608Joints for connecting non cylindrical conduits, e.g. channels
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/26Installations of cables, lines, or separate protective tubing therefor directly on or in walls, ceilings, or floors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30Installations of cables or lines on walls, floors or ceilings
    • H02G3/34Installations of cables or lines on walls, floors or ceilings using separate protective tubing
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/36Installations of cables or lines in walls, floors or ceilings

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

An electrical cable capping 10 (e.g. up or along a wall of a building) comprises an elongate housing element 12 and mounting feet 14 extending laterally from elongate edges of the elongate housing element 12. The outer surface 12a of the elongate housing element 12 is provided with one or more keying elements 18 for engaging with plaster applied to the outer surface. The thickness of at least part of the mounting feet 14 is greater than the material of the elongate housing element 12 and may comprise extensions of the elongate edges which are folded back on themselves to form reinforced thickened sections. The keying elements 18 may be V-shaped grooves or folds which extend internally of the elongate housing element 12 and form cable guides within the elongate housing element 12 to define a plurality of cable channels. The V-shaped grooves may follow a non-linear (e.g. curved or wavy) path. Keying elements 18 comprising surface indentations may additionally be formed in the outer surface 12a. A repeating series of two differently sized fixing apertures 20, 22 may be provided in the mounting feet. The repeating series may be of a generally circular 20 and an elongate slot 22 aperture type.

Description

Electrical cable cappinq The invention relates to electrical cable capping.
When installing electrical cabling in a building it is often necessary to run the cabling up or along a wall of the building. Cable capping comprising a profiled length of metal or plastic is then placed over the electrical cable and nailed in place along its edges. It can be difficult to ensure that the electrical cable is laying flat and straight within traditional cable capping, particularly where two or more cables are to be located within the cable capping. Once the cable capping has been installed the wall may be plastered, and plaster may also be applied over the cable capping. However it can be difficult to apply plaster over cable capping due to its external profile.
According to an aspect of the present invention there is provided electrical cable capping comprising: an elongate housing element having a shaped profile defining a cable channel, an outer surface of the elongate housing element being provided with one or more keying elements for engaging with plaster applied to the outer surface; and mounting feet extending generally laterally from elongate edges of the elongate housing element, the feet at least in part being thicker than the material of the elongate housing element.
The keying elements may enable plaster to be more effectively applied over the electrical cable capping. Making the mounting feet at least in part thicker that the elongate housing element may increase the strength of the electrical cable capping as compared to a traditional cable capping of the same size, profile and housing material thickness.
In an embodiment, the keying elements comprise elongate V-shaped grooves formed in the outer surface. The keying elements may therefore be simply formed by being pressed into the outer surface.
In an embodiment, the elongate V-shaped grooves comprise folds formed in the elongate housing section. Deeper V-shaped grooves may thus be formed.
In an embodiment, the elongate V-shaped grooves extend internally of the elongate housing element and form cable guides within the elongate housing element, thereby defining a plurality of cable channels. The V-shaped grooves may thus be formed such that they provide integral cable guides which extend internally into the elongate housing element. Electrical cable capping is thus provided in which one or each of a plurality of electrical cables may be arranged within a respective cable channel, enabling each cable to be laid along a fixed path within the cable capping.
In an embodiment, the elongate V-shaped grooves follow a non-linear path, such as a curved or wavy path. Providing non-linear keying elements may improve the engagement which may be achieved with the plaster.
In an embodiment, keying elements comprising surface indentations are additionally formed in the outer surface. The surface indentations may comprise dimples, teeth or additional grooves. Providing additional keying elements may improve the engagement which may be achieved with the plaster without affecting the path of an electrical cable within the cable capping.
In an embodiment, the mounting feet comprise extensions of the elongate edges of the elongate housing element, the elongate edges being folded back on themselves to form reinforced thickened sections of the feet. The elongate edges may be folded one or more times. The electrical cable capping may therefore be formed as a single piece, which may improve the strength of the capping as compared to a cable capping in which the mounting feet comprise separate elements for the same amount of material or allow the same strength to be achieved for a smaller amount of material.
In an embodiment, a repeating series of two differently sized fixing apertures are provided in the mounting feet on each edge of the elongate housing element. In an embodiment, the fixing apertures comprise a repeating series of a generally circular aperture and an elongate slot aperture. Providing fixing apertures may allow the cable capping to be fixed using both nails and screws. Providing two differently sized fixing apertures may allow the position at which the cable capping is fixed to a wall to be adjusted during fixing.
In an embodiment, the electrical cable capping is further provided with a male mechanical coupling formation at one end of the elongate housing element and a complementary female mechanical coupling formation at the other end of the elongate housing element. Adjacent lengths of electrical cable capping may therefore be coupled together at their ends, which may improve the alignment of adjacent lengths and may reduce gaps between adjacent lengths.
In an embodiment, the mechanical coupling formations comprise curved tongues which extend in the elongate direction from each end of at least one of the mounting feet, the male tongue is curved in a first sense and the female tongue is curved in the opposite sense. A simple mechanical coupling between adjacent lengths of electrical cable capping may therefore be provided. The tongues may be removed if not required in any particular usage, leaving clean ends to the electrical cable capping.
In an embodiment, the male mechanical coupling formation comprises a tongue which extends in the elongate direction from one end of the elongate housing element and the female mechanical coupling formation comprises a complementary slot provided in the other end of the elongate housing element. A more secure mechanical coupling between sections of electrical cable capping may therefore be provided and sections may be coupled together before being installed on a wall.
In an embodiment, the elongate housing element has a generally U-shaped profile. The width of the elongate housing element may vary according to the number of electrical cables with which the electrical cable capping is intended to be used.
Embodiments of the invention will now be described in detail, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a diagrammatic representation of a length of electrical cable capping according to a first embodiment of the invention; Figure 2 is a diagrammatic sectional view along line A-A of the electrical cable capping of Figure 1; Figure 3 is a diagrammatic sectional view of electrical cable capping according to a second embodiment of the invention; Figure 4 is a diagrammatic sectional view of electrical cable capping according to a third embodiment of the invention; Figure 5 is a diagrammatic representation of part of length of electrical cable capping according to a fourth embodiment of the invention; Figure 6 is a diagrammatic representation of either end of a length of electrical cable capping according to a fifth embodiment of the invention; and Figure 7 is a diagrammatic representation of either end of a length of electrical cable capping according to a sixth embodiment of the invention.
Referring to Figures 1 and 2, a first embodiment of the invention provides electrical cable capping 10 comprising an elongate housing element 12 and mounting feet 14.
The elongate housing element 12 has a shaped profile defining a cable channel 16. In this example the elongate housing element 12 has a substantially U-shaped profile defining a generally U-shaped cable channel 16. It will be appreciated that the shape of the profile may vary according to the number of electrical cables which the electrical cable capping 12 is intended to receive. For example, an electrical cable capping arranged to receive a single cable may have a part circular profile and an electrical cable capping arranged to receive a greater number of cables than that shown in Figures 1 and 2 may have a U-shaped profile of a greater width.
The outer surface 1 2a of the elongate housing element 12 is provided with one or more keying elements 18 for engaging with plaster applied to the outer surface. In this example, the keying elements comprise elongate V-shaped grooves formed in the outer surface 12a.
The mounting feet 14 extend generally laterally from the elongate edges of the elongate housing element 12. The mounting feet 14 are at least in part thicker than the material of the elongate housing element 12. In this example, the mounting feet 14 comprise extensions of the elongate edges of the housing element 12, so that the housing element 12 and the mounting feet 14 are formed as a single piece. The elongate edges of the mounting feet 14 are folded back on themselves (as shown in Figure 2) to form reinforced thickened sections 14a of the mounting feet 14.
A series of fixing apertures 20, 22 are provided in each of the mounting feet 14. In this example, the fixing apertures comprise a repeating series of a circular aperture 20 and an elongate slot aperture 22.
The electrical cable capping 10 may be formed of sheet metal or may comprise a plastic extrusion. Where the electrical cable capping is formed from plastic material, the reinforced thickened sections 14a of the mounting feet 14 may simply comprise thicker sections of material along the elongate edges of the mounting feet 14 rather than folded sections.
A second embodiment of the invention provides electrical cable capping 30 having a cross sectional profile as shown in Figure 3. The electrical cable capping 30 is substantially the same as the electrical cable capping 10 of Figures 1 and 2, and the same reference numbers are retained for corresponding features.
In this embodiment, the elongate V-shaped grooves 32 formed in the outer surface 1 2a of the elongate housing element 12 are deep enough so as to extend internally of the elongate housing element 12 and form cable guides 34 within the elongate housing element 12. In this example, two V-shaped grooves 32 are provided, forming two cable guides 34 which, together with the walls of the elongate housing member 12, define three cable channels 36.
The V-shaped grooves 32 may be simply formed by being pressed into the outer surface 12a of the elongate housing element 12.
A third embodiment of the invention provides electrical cable capping 40 having cross-sectional profile as shown in Figure 4. The electrical cable capping 40 is substantially the same as the electrical cable capping 10 of Figures 1 and 2, with the following modifications. The same reference numbers are retained for corresponding features.
In this embodiment, the keying elements comprise V-shaped grooves 42 in the form of folds formed in the outer surface 44a of the elongate housing element 44. The elongate folds 42 extend internally of the elongate housing element 44 and form cable guides 46 within the elongate housing element 44. The folds 42 produce resulting V-shaped grooves on the external surface 44a of the elongate housing element 44. The cable guides 46, together with the internal walls of the elongate housing element 44, form three cable channels 48.
Figure 5 shows a part of an electrical cable capping 50 according to a fourth embodiment of the invention. The electrical cable capping 50 is substantially the same as the electrical cable capping 10 of Figures 1 and 2, with the following modifications.
The same reference numbers are retained for corresponding features.
In this embodiment, the V-shaped grooves 52 extend along the elongate direction of the elongate housing element 12 following a generally curved or wavy path.
In this embodiment the outer surface 1 2a of the elongate housing element 12 is provided with additional keying elements in the form of surface indentations 54, 56 formed in the outer surface 12a. In this example, the surface indentations take the form of dimples or teeth 54 and additional V-grooves 56.
Figure 6 shows an electrical cable capping 60 according to a fifth embodiment of the invention. The electrical cable capping 60 is substantially the same as the electrical cable capping 10 of Figure 1, with the following modifications. The same reference numbers are retained for corresponding features.
In this embodiment, each end of the electrical cable capping is provided with a tongue 62,64 at the end of each of the mounting feet 14. The tongues 62 atone end 60a are curved in a first sense, into the page as shown in the drawings. At the other end of the electrical cable capping 60b, the tongues 64 are curved in the opposite sense, out of the page as shown in the drawings. The tongues 62, 64 are of complimentary formations so that they may engage with one another by hooking together, in order to mechanically couple the ends of two adjacent lengths of electrical cable capping 60.
Electrical cable capping 70 according to a sixth embodiment is shown in Figure 7.
Figure 7 shows one end 70a of a length of electrical cable capping and the other end 70b of the length of electrical cable capping. The electrical cable capping 70 is substantially the same as the electrical cable capping 10 of Figure 1, with the following modifications. The same reference numbers are retained for corresponding features.
In this embodiment, the electrical cable capping is further provided with a male mechanical coupling formation in the form of a tongue 72 on one end 70a of the elongate housing element 12 and a complimentary female mechanical coupling formation, in the form of a slot 74, provided at the other end 70b of the elongate housing element 12. The slot 74 is adapted to receive at least part of the length of the tongue 72, to form a mechanical coupling between the ends of adjacent lengths of electrical cable capping 70.

Claims (12)

  1. Claims 1. Electrical cable capping comprising: an elongate housing element having a shaped profile defining a cable channel, an outer surface of the elongate housing element being provided with one or more keying elements for engaging with plaster applied to the outer surface; and mounting feet extending generally laterally from elongate edges of the elongate housing element, the feet at least in part being thicker than the material of the elongate housing element.
  2. 2. Electrical cable capping as claimed in claim 1, wherein the keying elements comprise elongate V-shaped grooves formed in the outer surface.
  3. 3. Electrical cable capping as claimed in claim 2, wherein the elongate V-shaped grooves comprise folds formed in the elongate housing element.
  4. 4. Electrical cable capping as claimed in claim 2 or 3, wherein the elongate V-shaped grooves extend internally of the elongate housing element and form cable guides within the elongate housing element, thereby defining a plurality of cable channels.
  5. 5. Electrical cable capping as claimed in any of claims 2 to 4, wherein the elongate V-shaped grooves follow a non-linear path, such as a curved or wavy path.
  6. 6. Electrical cable capping as claimed in any of claims 2 to 5, wherein keying elements comprising surface indentations are additionally formed in the outer surface.
  7. 7. Electrical cable capping as claimed in any preceding claim, wherein the mounting feet comprise extensions of the elongate edges of the elongate housing element, the elongate edges being folded back on themselves to form reinforced thickened sections of the feet.
  8. 8. Electrical cable capping as claimed in any preceding claim, wherein a repeating series of two differently sized fixing apertures are provided in the mounting feet on each edge of the elongate housing element.
  9. 9. Electrical cable capping as claimed in claim 8, wherein the fixing apertures comprise a repeating series of a generally circular aperture and an elongate slot aperture.
  10. 10. Electrical cable capping as claimed in any preceding claim, wherein the electrical cable capping is further provided with a male mechanical coupling formation at one end of the elongate housing element and a complementary female mechanical coupling formation at the other end of the elongate housing element.
  11. 11. Electrical cable capping as claimed in claim 10, wherein the mechanical coupling formations comprise curved tongues which extend in the elongate direction from each end of at least one of the mounting feet, the male tongue being curved in a first sense and the female tongue being curved in the opposite sense.
  12. 12. Electrical cable capping as claimed in claim 10, wherein the male mechanical coupling formation comprises a tongue which extends in the elongate direction from one end of the elongate housing element and the female mechanical coupling formation comprises a complementary slot provided in the other end of the elongate housing element.Amendment to the claims have been filed as follows Claims 1. Electrical cable capping comprising: an elongate housing element comprising elongate edges and having a shaped profile defining a cable channel, an outer surface of the elongate housing element being provided with one or more keying elements for engaging with plaster applied to the outer surface, each keying element comprising an elongate V-shaped groove formed in the outer surface, the groove following a non-linear path relative to the elongate edges; and mounting feet extending generally laterally from the elongate edges, the feet at least in part being thicker than the material of the elongate housing element.2. Electrical cable capping as claimed in claim 1, wherein the elongate V-shaped grooves comprise folds formed in the elongate housing element.3. Electrical cable capping as claimed in claim 2, wherein the elongate V-shaped grooves extend internally of the elongate housing element and form cable guides within the elongate housing element, thereby defining a plurality of cable channels.4. Electrical cable capping as claimed in any of claims 2 to 4, wherein the elongate V-shaped grooves follow a curved or wavy path.5. Electrical cable capping as claimed in any of claims 2 to 4, wherein keying elements comprising surface indentations are additionally formed in the outer surface.6. Electrical cable capping as claimed in any preceding claim, wherein the mounting feet comprise extensions of the elongate edges of the elongate housing element, the elongate edges being folded back on themselves to form reinforced thickened sections of the feet.7. Electrical cable capping as claimed in any preceding claim, wherein a repeating series of two differently sized fixing apertures are provided in the mounting feet on each edge of the elongate housing element.8. Electrical cable capping as claimed in claim 7, wherein the fixing apertures comprise a repeating series of a generally circular aperture and an elongate slot aperture.9. Electrical cable capping as claimed in any preceding claim, wherein the electrical cable capping is further provided with a male mechanical coupling formation at one end of the elongate housing element and a complementary female mechanical coupling formation at the other end of the elongate housing element.10. Electrical cable capping as claimed in claim 9, wherein the mechanical coupling formations comprise curved tongues which extend in the elongate direction from each end of at least one of the mounting feet, the male tongue being curved in a first sense and the female tongue being curved in the opposite sense.11. Electrical cable capping as claimed in claim 9, wherein the male mechanical coupling formation comprises a tongue which extends in the elongate direction from one end of the elongate housing element and the female mechanical coupling formation comprises a complementary slot provided in the other end of the elongate Q housing element. (\J
GB1008437.4A 2010-05-20 2010-05-20 Electrical cable capping Expired - Fee Related GB2480484B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1008437.4A GB2480484B (en) 2010-05-20 2010-05-20 Electrical cable capping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1008437.4A GB2480484B (en) 2010-05-20 2010-05-20 Electrical cable capping

Publications (3)

Publication Number Publication Date
GB201008437D0 GB201008437D0 (en) 2010-07-07
GB2480484A true GB2480484A (en) 2011-11-23
GB2480484B GB2480484B (en) 2012-06-20

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Family Applications (1)

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GB1008437.4A Expired - Fee Related GB2480484B (en) 2010-05-20 2010-05-20 Electrical cable capping

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130228368A1 (en) * 2013-04-19 2013-09-05 Tyco Electronics Raychem Bvba Wall box and wall mounted plate with integrated ducts
GB2514588A (en) * 2013-05-30 2014-12-03 Grove Metal Sections Ltd An improved capping strip

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2434256A (en) * 2006-01-13 2007-07-18 Westmile Associates Ltd Electrical cable conduit.
GB2455549A (en) * 2007-12-13 2009-06-17 Novar Ed & S Ltd Cable ducting

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2434256A (en) * 2006-01-13 2007-07-18 Westmile Associates Ltd Electrical cable conduit.
GB2455549A (en) * 2007-12-13 2009-06-17 Novar Ed & S Ltd Cable ducting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130228368A1 (en) * 2013-04-19 2013-09-05 Tyco Electronics Raychem Bvba Wall box and wall mounted plate with integrated ducts
GB2514588A (en) * 2013-05-30 2014-12-03 Grove Metal Sections Ltd An improved capping strip
GB2514588B (en) * 2013-05-30 2017-04-26 Grove Metal Sections Ltd An improved capping strip

Also Published As

Publication number Publication date
GB201008437D0 (en) 2010-07-07
GB2480484B (en) 2012-06-20

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20230520