GB1587532A - Cable securing device - Google Patents
Cable securing device Download PDFInfo
- Publication number
- GB1587532A GB1587532A GB5636/77A GB563677A GB1587532A GB 1587532 A GB1587532 A GB 1587532A GB 5636/77 A GB5636/77 A GB 5636/77A GB 563677 A GB563677 A GB 563677A GB 1587532 A GB1587532 A GB 1587532A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable
- arms
- cables
- base member
- secured
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 19
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 229920003051 synthetic elastomer Polymers 0.000 claims description 5
- 239000005061 synthetic rubber Substances 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 239000012777 electrically insulating material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 235000004035 Cryptotaenia japonica Nutrition 0.000 description 4
- 102000007641 Trefoil Factors Human genes 0.000 description 4
- 108010007389 Trefoil Factors Proteins 0.000 description 4
- 235000015724 Trifolium pratense Nutrition 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 1
- 240000002913 Trifolium pratense Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1066—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with three or more members surrounding the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
- F16L3/23—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other
Description
(54) AN IMPROVED CABLE SECURING DEVICE
(71) We, BICC LIMITED, a British
Company, of 21 Bloomsbury Street, London
WC1B 3QN, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
This invention relates to a device for securing
at least one cable, pipe or other elongate mem
ber to a support, all such elongate members, for
convenience, hereinafter being included in the
term "cable".
In installing single-core electric power cables
in cable networks of industrial plant, it is the
general practice to arrange three single core power cables alongside one another with their
axes passing through the apices of a triangle,
such an arrangement usually being referred to as
a trefoil cable group. A trefoil cable group is
usually secured to a support at spaced positions
along its length by means of cleats of the kind
comprising a base member adapted to be secured
to the support and two arms which co-operate with the base member to form a three-sided
opening in which the cables can be clamped by
drawing the base member and arms towards one
another. A cable cleat of this kind will herein
after be referred to as "of the kind described".
It is the general practice to make the base
member and arms of a cleat of the kind des
cribed of cast metal or metal alloy, usually
with the inwardly-facing surfaces of the base
member and arms of shapes substantially com
plementary to the cross-sectional shape of the
cables to be clamped in the cleat. At spaced
positions between the cleats, the cables of the
trefoil cable group are secured together by
cable straps or ties.
We have found that where a cable of a tre
foil cable group is subject to a high level short
circuit fault current, there is a risk that the
resultant outward lateral movement of the
cable will cause a cable cleat of the kind des
cribed made of case metal or metal alloy, to
fracture and/or will cause damage to a cable or
cables of the group.
It is an object of the present invention to
provide a device for securing at least one
cable to a support which is of such a construc
tion that it will accommodate limited outward
lateral movement of a cable secured by the
device with negligible risk of damage to the
device and/or cable.
According to the present invention the
device comprises a base member adapted to be
secured to a support and two arms which may
or may not be integral with one another, which
co-operate with the base member to form a
three-sided opening in which a cable or group
of two or more cables can be arranged, and
means for drawing the base member and arms
towards one another to secure the cable or
group of cables in said opening; wherein the
arms of the device are elongate members of a
resilient metal or resilient metal alloy, and,
the inwardly-facing surface of the base mem
ber and of each arm carries a cushioning
layer of compressible material, the arrange
ment being such that, when the cable or one of
the cables secured in the opening moves lateral) I outward due to a short circuit fault current or
other cause, such outward lateral movement
will be accommodated by compression of at
least one of the cushioning layers and/or by the
resilience of the elongate member or members.
Preferably, the base member is also an elon
gate member of a resilient metal or metal alloy
and, where the arms are not integral with one
another, the base member may be integral with
one of the arms but, preferably, the base mem
ber and arms are three separately formed elon
gate members.
Preferably, each elongate member of the
device is a strip of stainless steel or of other
suitable resilient non-magnetic metallic
material. Where each elongate member is of
magnetic material, preferably the means for
drawing the members about the cable or cables
are of such a material and/or form that the de
vice does not form a magnetic loop around the
cable or cables. Where the device is formed
from elongate members of magnetic material,
preferably the elongate members are of such a
form and/or are so inter-connected that the
device does not form a magnetic loop around
the cable or cables; for example, the elongate
members may each be completely covered by
an electrically insulating material and this covering of insulated material may constitute the cushioning layer of compressible material.
The means for drawing the base member and arms about the cable or cables to secure the cable or cables in the device may be bolts of metal alloy having the necessary tensile strength, bolts of high tensile stainless steel being preferred.
Preferably, the holes in the arms where they are drawn towards the base member and/or the holes in the base member are slots so that the device will accommodate any cable or cables of a diameter lying within a limited range of diameters.
Preferably the compressible material of each cushioning layer has oil-resistant properties, a preferred material being an oil-resistant natural or synthetic rubber. Each layer may be permanently bonded or otherwise permanently secured to the inwardly-facing surface of each elongate member or it may be detachably secured thereto, for example by making each cushioning layer of a preformed shape such that it is a snap fit on a member. The internal surface of each cushioning layer may be of planar form or it may be of a shape complementary to the cross-sectional shape of the cable or group of cables to be secured in the device.
In most circumstances, the bolts used to connect the base member to the adjoining ends of the arms may be employed to secure the device to a support and, in this case, these bolts are preferably attached to a packing member. Where the support is a wall, preferably the base member carries separate means for securing the base member thereto.
Where three cables are to be secured in the device with their axes passing through the apices of a triangle, there may be associated with the device a separately formed spacing member of compressible material having outwardly extending fins which can be arranged to lie between adjacent cables and to accommodate any inward lateral movement of a cable that may occur.
The invention is further illustrated by a description, by way of example, of two preferred forms of cable-securing device with reference to the accompanying drawings, in which:
Figure 1 is an end view of a cable cleat of the kind described, and
Figure 2 is a fragmental transverse crosssectional view of a modification of the cleat shown in Figure 1.
In the cable cleat shown in Figure 1, a base member 1 and arms 2 and 3 are elongate members formed from stainless steel. The arms 2 and 3 and base member 1 are clamped together by bolts 4, 5 and 6 to form an approximately triangular-shaped opening 7. The arms 2 and 3 and base member I, respectively, have cushioning layers, 8, 9 and 10 of oil resistant synthetic rubber permanently bonded to their inwardlyfacing surfaces. The bolts 5 and 6 clamping the arms 2 and 3 to the base member 1 are attached to a packing member 11 ready for attaching to a support.
In the modification of the cleat shown in
Figure 1, slots 12 and 13 in the arms 2 and 3 respectively, allow some movement of the arms in the direction X-X' before the arms are finally clamped to the base member I, to accommodate any cable or cables of a diameter lying within a limited range of different diameters.
In the cable cleats shown in Figures 1 and 2 a cushioning layer is compressed by any outward lateral movement of the cable or one of the cables secured in the cleat due to a short circuit fault current or other cause and reduces the risk of damage to the cleat and/or the cable.
The device of the present invention is cheap and simple to manufacture and use and will accommodate a cable or any group of cables selected from groups of cables whose overall transverse dimensions lie within a limited range of transverse dimensions.
WHAT WE CLAIM IS:
1. A device for securing at least one cable to a support, which device comprises a base member adapted to be secured to a support and two arms which co-operate with the base member to form a three-sided opening in which a cable or group of two or more cables can be arranged, and means for drawing the base member and arms towards one another to secure the cable or group of cables in said opening; wherein the arms of the device are elongate members of a resilient metal or resilient metal alloy and, the inwardly facing surface of the base member and of each arm carries a cushioning layer of compressible material, the arrangement being such that, when the cable or at least one of the cables secured in the device moves laterally outward due to a short circuit fault current or other cause, such outward lateral movement will be accommodated by compression of at least one of the cushioning layers and/or by the resilience of the arms.
2. A device as claimed in Claim 1, wherein the two arms are integral with each other.
3. A device as claimed in Claim 1 or 2, wherein the base member is also an elongate member of a resilient metal or metal alloy.
4. A device as claimed in Claim 3, wherein the base member and the arms are three separately formed elongate members.
5. A device as claimed in Claim 1, wherein the base member is integral with one of the arms.
6. A device as claimed in any one of the preceding Claims, wherein the elongate members are of such a form and/or are so interconnected that the device does not form a magnetic loop around the cable or cables.
7. A device as claimed in Claim 6, wherein the elongate members are each completely
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (22)
1. A device for securing at least one cable to a support, which device comprises a base member adapted to be secured to a support and two arms which co-operate with the base member to form a three-sided opening in which a cable or group of two or more cables can be arranged, and means for drawing the base member and arms towards one another to secure the cable or group of cables in said opening; wherein the arms of the device are elongate members of a resilient metal or resilient metal alloy and, the inwardly facing surface of the base member and of each arm carries a cushioning layer of compressible material, the arrangement being such that, when the cable or at least one of the cables secured in the device moves laterally outward due to a short circuit fault current or other cause, such outward lateral movement will be accommodated by compression of at least one of the cushioning layers and/or by the resilience of the arms.
2. A device as claimed in Claim 1, wherein the two arms are integral with each other.
3. A device as claimed in Claim 1 or 2, wherein the base member is also an elongate member of a resilient metal or metal alloy.
4. A device as claimed in Claim 3, wherein the base member and the arms are three separately formed elongate members.
5. A device as claimed in Claim 1, wherein the base member is integral with one of the arms.
6. A device as claimed in any one of the preceding Claims, wherein the elongate members are of such a form and/or are so interconnected that the device does not form a magnetic loop around the cable or cables.
7. A device as claimed in Claim 6, wherein the elongate members are each completely
covered by an electrically insulating material and this covering constitutes the cushioning layer of compressible material.
8. A device as claimed in any one of the preceding Claims, wherein the means for drawing the base member and two arms towards one another are bolts and wherein holes in the arms and/or in the base member engaged by the bolts are slots so that the device will accommodate any cable or cables of a diameter lying within a limited range of diameters.
9. A device as claimed in any one of the preceding Claims, wherein the means for drawing the base member and two arms towards one another are bolts and the bolts used to connect the base member to the adjoining ends of the arms can be employed to secure the device to a support.
10. A device as claimed in Claim 9, wherein the bolts used to secure the device to a support are attached to a packing member.
11. A device as claimed in any one of the preceding Claims, wherein each elongate member is a strip of stainless steel or of other suitable resilient non-magnetic metallic material.
12. A device as claimed in any one of
Claims 1 to 10, wherein each elongate member is a magnetic material and the means for drawing the members about the cable or cables are of such a material and/or form that the device does not form a magnetic loop around the cable or cables.
13. A device as claimed in any one of the preceding Claims, wherein the compressible material of each cushioning layer has oilresistant properties.
14. A device as claimed in Claim 13, wherein the compressible material is oil-resistant natural or synthetic rubber.
15. A device as claimed in any one of the preceding Claims, wherein each cushioning layer is permanently bonded or otherwise permanently secured to the inwardly-facing surface of each elongate member.
16. A device as claimed in any one of
Claims 1 to 14, wherein each cushioning layer is detachably secured to the inwardlyfacing surface of each elongate member.
17. A device as claimed in Claim 16, wherein each cushioning layer is of a preformed shape such that it is a snap fit on an elongate member.
18. A device as claimed in any one of the preceding Claims, wherein the inwardly-facing surface of each cushioning layer is of planar form.
19. A device as claimed in any one of
Claims 1 to 17, wherein the inwardly-facing surface of each cushioning layer is of a shape complementary to the cross-sectional shape of the cable or group of cables to be secured in the device.
20. A device as claimed in any one of the preceding Claims, wherein the device includes a separately formed spacing member of compressible material having outwardly extending fins which are arranged to lie between adjacent cables of three cables when secured in the device with their axes passing through the apices of a triangle, the spacing member accommodating any inward lateral movement of a cable that occurs.
21. A device for securing at least one cable to a support substantially as hereinbefore described with reference to and as shown in
Figure 1 or 2 of the accompanying drawings.
22. An electric power cable installation in which at least one cable is secured to a support by at least one device as claimed in any one of the preceding Claims.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA00780738A ZA78738B (en) | 1978-02-09 | 1978-02-07 | An improved cable securing device |
| GB5636/77A GB1587532A (en) | 1978-02-09 | 1978-02-09 | Cable securing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5636/77A GB1587532A (en) | 1978-02-09 | 1978-02-09 | Cable securing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1587532A true GB1587532A (en) | 1981-04-08 |
Family
ID=9799808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5636/77A Expired GB1587532A (en) | 1978-02-09 | 1978-02-09 | Cable securing device |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1587532A (en) |
| ZA (1) | ZA78738B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2186319A (en) * | 1986-02-06 | 1987-08-12 | Mines & West Ltd | Improvements in and relating to cable retaining devices |
| WO1991010856A1 (en) * | 1990-01-12 | 1991-07-25 | Walkern Victoria Industries Limited | Cable cleats |
| GB2255799A (en) * | 1990-01-12 | 1992-11-18 | Walkern Victoria Ind Ltd | Cable cleats |
| GB2256672A (en) * | 1991-06-14 | 1992-12-16 | Walkern Victoria Ind Ltd | Cable cleats |
| AT510445A4 (en) * | 2010-11-15 | 2012-04-15 | Kerschbaumer Hans Ing | CLAMP |
| EP3217494A1 (en) * | 2016-03-09 | 2017-09-13 | Tresco Ag | Bracket for holding cables, preferably highvoltage cables |
| CN107617651A (en) * | 2017-11-02 | 2018-01-23 | 张家港市华鸿金属制品有限公司 | A kind of unwrapping wire stopping means of rubber tube wire |
| US10903633B2 (en) | 2018-06-07 | 2021-01-26 | Panduit Corp. | Interlocking cable cleat |
-
1978
- 1978-02-07 ZA ZA00780738A patent/ZA78738B/en unknown
- 1978-02-09 GB GB5636/77A patent/GB1587532A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2186319A (en) * | 1986-02-06 | 1987-08-12 | Mines & West Ltd | Improvements in and relating to cable retaining devices |
| WO1991010856A1 (en) * | 1990-01-12 | 1991-07-25 | Walkern Victoria Industries Limited | Cable cleats |
| GB2255799A (en) * | 1990-01-12 | 1992-11-18 | Walkern Victoria Ind Ltd | Cable cleats |
| GB2255799B (en) * | 1990-01-12 | 1993-12-01 | Walkern Victoria Ind Ltd | Cable cleats |
| GB2256672A (en) * | 1991-06-14 | 1992-12-16 | Walkern Victoria Ind Ltd | Cable cleats |
| GB2256672B (en) * | 1991-06-14 | 1994-10-26 | Walkern Victoria Ind Ltd | Cable cleats |
| AT510445A4 (en) * | 2010-11-15 | 2012-04-15 | Kerschbaumer Hans Ing | CLAMP |
| AT510445B1 (en) * | 2010-11-15 | 2012-04-15 | Kerschbaumer Hans Ing | CLAMP |
| EP3217494A1 (en) * | 2016-03-09 | 2017-09-13 | Tresco Ag | Bracket for holding cables, preferably highvoltage cables |
| CN107617651A (en) * | 2017-11-02 | 2018-01-23 | 张家港市华鸿金属制品有限公司 | A kind of unwrapping wire stopping means of rubber tube wire |
| US10903633B2 (en) | 2018-06-07 | 2021-01-26 | Panduit Corp. | Interlocking cable cleat |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA78738B (en) | 1979-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |