Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
  • H02G3/0462—Tubings, i.e. having a closed section
  • H02G3/0468—Corrugated
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
  • H02G3/0462—Tubings, i.e. having a closed section
  • H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section

Definitions

• the present invention relates to an electrical
• tion includes a metal conduit which is connected to end fit-
• wiring may include, for example, a bundle of single conduc ⁇
• An additional insulating layer such as
• PTFE shrink tubing may be added over the bundle of individual
• the metal conduit may
• Vibration causes the electrical wiring to displace relative to the inside surfaces of the conduit in which the electrical wiring is run to the point where the electrical wiring impacts the interior walls of the conduit . Frequent impact over time damages the wiring and chafes the insulation and dielectric barrier that encases the conductors of the electrical wiring.
• the present invention is arranged to solve one or
• conduit comprises the following steps: a) inserting the
• a wiring assembly comprises a metal conduit, insulated
• thermoplastic covering surrounds the insu ⁇
• run through a conduit comprises the following steps : a)
• a method of protecting electrical wiring that is run through a conduit comprises the following steps: a)
• a wiring assembly comprises electrical wiring and a
• the covering is around the electrical wiring, and
• the covering has sufficient size to substantially center the
• a wiring assembly comprises electrical wiring and a
• the covering is around the electrical wiring, and
• the covering is arranged so that relative movement between the
• a wiring assembly comprises a conduit and electri ⁇
• conduit is a low friction material.
• Figure 1 shows protective tubing which is used in
• Figure 2 shows a wiring assembly in which electrical
• wiring 12 may comprise single copper conductors
• electric wiring 12 may be surrounded by an additional insulat ⁇
• ing sleeve such as PTFE shrink tubing 21.
• second protective tubing 14 and 16 are preferably, but not
• the first and second protective tubing 14 and 16 are The first and second protective tubing 14 and 16,
• thermoplastic for example, may each comprise a high profile thermoplastic
• tubing 16 may be greater than about twice its inside diameter. Also, the second protective tubing 16 may be convolutional
• diameter of the first protective tubing 14 may be substan ⁇
• protective tubing 14 is dependent upon the size of the wiring
• first protective tubing 14 may be greater than the pitch of
• conduit 18 may be stainless steel and/or alumi-
• the electrical wiring 12 is run through the first
• wiring subassembly 20 is then run through the conduit 18.
• first and second protective tubing 14 are identical to first and second protective tubing 14
• tubing 14 and 16 are chosen so that the wiring subassembly 20
• the conduit 18 has an interior
• conduit 18 is small enough, or if the available protective
• tubing is large enough, a single protective tubing having an outer dimension arranged to substantially fill the conduit 18
• dielectric resistance is provided between the electrical and the electrical
• the conduit 18 may be provided with a Teflon or other low
• conduit 18 may be a
• low friction conduit or may be provided with a low friction
• the electrical wiring 12 is
• first protective tubing 14 Other orders are possible.
• tubing 14 and 16 are shown as cylindrical tubing, tubing having other shapes may be used for the first and second
• tubing material other than tubing may be used.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Insulated Conductors (AREA)
• Details Of Indoor Wiring (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=22192099

Family Applications (1)

Country Status (2)

Family Cites Families (4)

• 1999
  • 1999-03-16 WO PCT/US1999/005737 patent/WO1999062155A1/en not_active Ceased
  • 1999-03-16 EP EP99912585A patent/EP1082794A1/de not_active Withdrawn

Non-Patent Citations (1)

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