JPS6358018B2 - - Google Patents
Info
- Publication number
- JPS6358018B2 JPS6358018B2 JP10965881A JP10965881A JPS6358018B2 JP S6358018 B2 JPS6358018 B2 JP S6358018B2 JP 10965881 A JP10965881 A JP 10965881A JP 10965881 A JP10965881 A JP 10965881A JP S6358018 B2 JPS6358018 B2 JP S6358018B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- wire
- sleeve
- steel
- stranded
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 22
- 229910052782 aluminium Inorganic materials 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000002788 crimping Methods 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Description
【発明の詳細な説明】
本発明はとくに地線用引留クランプを効率よく
圧縮接続する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to a method for efficiently compressing and connecting ground wire tie clamps.
引留クランプは従来第４図に示すように構成さ
れ、鋼心Stを圧着する鋼スリーブ１′とアルミ撚
線Alを圧着するアルミスリーブ２′よりなる。 A retaining clamp is conventionally constructed as shown in FIG. 4, and consists of a steel sleeve 1' for crimping a steel core St, and an aluminum sleeve 2' for crimping a stranded aluminum wire Al.
しかして、アルミスリーブの先端側にはテーパ
ー部３′がある。 There is a tapered portion 3' on the tip side of the aluminum sleeve.
このテーパー部３′は単に外観をととのえよう
とするものではない。このテーパー部３′はアル
ミ撚線Alの素線切れを予防すべく形成されてい
るものである。すなわち、アルミスリーブ２′で
順次アルミ撚線Alを圧縮してくるとテーパー部
３′の圧下力はその傾斜に沿つて次第に漸減され
てきて、テーパー部３′の先端では圧縮力がほぼ
ゼロとなるように設定する。こうするとアルミ撚
線Alとアルミスリーブ２′との間に圧縮応力の急
激な変化がないのでアルミ撚線Alの素線切れが
防止できる。 This tapered portion 3' is not intended to simply improve the appearance. This tapered portion 3' is formed to prevent the strands of the aluminum stranded wire Al from breaking. That is, as the aluminum stranded wire Al is sequentially compressed by the aluminum sleeve 2', the rolling force of the tapered part 3' gradually decreases along the slope, and the compressive force becomes almost zero at the tip of the tapered part 3'. Set it so that In this way, there is no sudden change in compressive stress between the stranded aluminum wire Al and the aluminum sleeve 2', so that breakage of the strands of the stranded aluminum wire Al can be prevented.
しかしこれは第４図に示した鋼心アルミ撚線用
の引留クランプに対していえることであつて地線
用としては多少事情が異なる。 However, this applies to the restraint clamp for steel-core aluminum stranded wires shown in FIG. 4, and the situation is somewhat different for ground wires.
すなわち地線は、亜鉛メツキ鋼撚線あるいはア
ルミ被鋼撚線よりなつているから、上記アルミ撚
線部なるものが存在しない。してみると鋼心アル
ミ撚線の場合の如く素線切れを心配する必要がな
いのである。 That is, since the ground wire is made of galvanized steel stranded wire or aluminum covered steel stranded wire, the aluminum stranded wire portion does not exist. As a result, there is no need to worry about wire breakage as with steel core aluminum stranded wires.
このような地線用引留クランプは第１図断面図
の如く構成されてなる。すなわち、地撚GWは鋼
スリーブ１で圧着保持されているが第４図に示し
た如きアルミ撚線Alが存在しない。従つてアル
ミスリーブ２は単に鋼スリーブ外表面を保護防食
せしめる役目しかないにもかかわらず、テーパー
部３を有しているのである。これを圧着するには
アルミカラー４を当てがい全体が圧縮されるが従
来の圧縮ダイスではテーパー部先端で圧縮力がゼ
ロとなるように設定されるがため、第２図に示す
如く雨水の浸入を許す隙間５，５……が生じてし
まう。これはテーパー部先端の外周径と同じくな
るようなダイスの辺間距離D1が選ばれるためで
ある。 Such a ground wire retaining clamp is constructed as shown in the sectional view of FIG. That is, although the ground twisted wire GW is crimped and held by the steel sleeve 1, the aluminum twisted wire Al as shown in FIG. 4 is not present. Therefore, the aluminum sleeve 2 has the tapered portion 3 even though its role is simply to protect and prevent corrosion of the outer surface of the steel sleeve. To crimp this, the entire aluminum collar 4 is compressed, but with conventional compression dies, the compression force is set to zero at the tip of the tapered part, so as shown in Figure 2, rainwater can enter. Gaps 5, 5, etc. that allow for this will occur. This is because the distance D 1 between the sides of the die is selected so that it is the same as the outer diameter of the tip of the tapered part.
本発明にあつてはこのような圧縮ダイスの辺間
距離をアルミスリーブのテーパー部の外周径より
も小さいD2が選ばれる。このようにすれば第３
図に示すように圧縮が完全となり隙間が生じない
から、雨水による腐食あるいはそれの凍結に基づ
く引留クランプの破壊などを防止できる。 In the present invention, the distance between the sides of such a compression die is selected to be D2 , which is smaller than the outer circumferential diameter of the tapered portion of the aluminum sleeve. In this way, the third
As shown in the figure, since the compression is complete and no gaps are created, it is possible to prevent the retaining clamp from being corroded by rainwater or destroyed due to freezing.
なお、ダイスの辺間距離D2よりもテーパー部
先端の外周径を大きくとるためには一つにはアル
ミ本体自体の外径を汎用のものより大きくするこ
とで達成されるし、またダイスを小さい辺間距離
のものに設計しても達成される。 In addition, in order to make the outer diameter of the tapered part tip larger than the distance between the sides of the die D 2 , this can be achieved in part by making the outer diameter of the aluminum body itself larger than that of a general-purpose one, and also by making the die larger in outer diameter than the general-purpose one. This can be achieved even by designing with a small distance between sides.
第１図は地線用引留クランプの縦断面図、第２
図および３図はクランプ先端の圧縮挙動を示す説
明図、第４図は鋼心アルミ撚線用引留クランプの
縦断面図である。
１：１′：鋼スリーブ、２，２′：アルミスリー
ブ、３，３′：テーパー部。
Figure 1 is a vertical cross-sectional view of the ground wire retaining clamp, Figure 2
3 and 3 are explanatory diagrams showing the compression behavior of the tip of the clamp, and FIG. 4 is a longitudinal cross-sectional view of the restraining clamp for steel-core aluminum stranded wire. 1: 1': Steel sleeve, 2, 2': Aluminum sleeve, 3, 3': Tapered part.
Claims (1)
に圧縮ダイスの対辺寸法をアルミスリーブのテー
パー部の径より小さくとつて圧縮することを特徴
とする地線用引留クランプの圧縮接地工法。1. A compression grounding method for a ground wire tie clamp, which is characterized in that when compressing an aluminum sleeve with a hexagonal die, the opposite side dimension of the compression die is smaller than the diameter of the tapered part of the aluminum sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56109658A JPS5812519A (en) | 1981-07-14 | 1981-07-14 | Method of compressing and connecting ground line ancoring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56109658A JPS5812519A (en) | 1981-07-14 | 1981-07-14 | Method of compressing and connecting ground line ancoring clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5812519A JPS5812519A (en) | 1983-01-24 |
| JPS6358018B2 true JPS6358018B2 (en) | 1988-11-14 |
Family
ID=14515865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56109658A Granted JPS5812519A (en) | 1981-07-14 | 1981-07-14 | Method of compressing and connecting ground line ancoring clamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5812519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108614U (en) * | 1989-02-18 | 1990-08-29 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065013A (en) * | 2014-07-21 | 2014-09-24 | 中国电力工程顾问集团西南电力设计院 | Ice damage prevention strain clamp |
-
1981
- 1981-07-14 JP JP56109658A patent/JPS5812519A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108614U (en) * | 1989-02-18 | 1990-08-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5812519A (en) | 1983-01-24 |
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