JP2004064923A - Cable with branch for collective housing, and wiring method for the same - Google Patents

Cable with branch for collective housing, and wiring method for the same Download PDF

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Publication number
JP2004064923A
JP2004064923A JP2002221587A JP2002221587A JP2004064923A JP 2004064923 A JP2004064923 A JP 2004064923A JP 2002221587 A JP2002221587 A JP 2002221587A JP 2002221587 A JP2002221587 A JP 2002221587A JP 2004064923 A JP2004064923 A JP 2004064923A
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Japan
Prior art keywords
cable
branch
trunk
wired
dwelling unit
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JP2002221587A
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Japanese (ja)
Inventor
Satoshi Kawaguchi
川口 智
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Yazaki Corp
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Yazaki Corp
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Priority to JP2002221587A priority Critical patent/JP2004064923A/en
Publication of JP2004064923A publication Critical patent/JP2004064923A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a favorable cable with branch for collective housing and a wiring method for it wherein the work of routing a cable to each dwelling unit in collective housing is facilitated and the appearance is improved. <P>SOLUTION: A cable 30 with branch for collective housing is formed by multipoint-connecting a plurality of branched cables 35 to the branching points of a trunk cable 33. The cable 30 with branch is led from the outdoors into the space 54 under floor between the building body 32 and the mat foundation 50 constituting the collective housing 31 and open-wired there. The branched cables 35 are pulled up from the branching points housed in inspection boxes 40 placed above floor and wired in each dwelling unit in the collective housing 31. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は集合住宅用分岐付きケーブル及びその配線方法に関し、特に、集合住宅の各住戸にケーブルを配索する作業を効率化する為の集合住宅用分岐付きケーブル及びその配線方法に関する。
【0002】
【従来の技術】
図7及び図8に示した集合住宅1は、プレハブ工法等による建物本体2の内側に階段室3を設けた内階段タイプの二階建て集合住宅であり、各階層に四つの住戸が横に並んでいる。
隣接する二つの住戸は、共通する階段室3を介してそれぞれ玄関を利用しており、二階の各住戸は共通する階段4を利用している。
【0003】
各住戸の配線工事が完了した住戸分電盤10は、図8に示したように、共用部である階段室3に面して設置された積算電力計11にそれぞれ接続され、各積算電力計11には、分岐ボックス21を介して幹線ケーブル20に接続された分岐ケーブル23が接続される。
【0004】
【発明が解決しようとする課題】
ところで、前記幹線ケーブル20の配線は、例えば図7に示したように、建物本体2の外壁に露出配線方式にて行うのが一般的である。
そこで、前記幹線ケーブル20が建物本体2の外観部に露出し、美観上好ましくないという問題がある。
【0005】
又、図8に示したように、建物本体2の短手方向の一側面(図7中、左側面)に設置された引込開閉器25を介して、引込線27に一端が接続された前記幹線ケーブル20は、建物本体2の長手方向の外壁に沿って敷設される。
そこで、前記幹線ケーブル20を前記階段室3の外壁にも沿って敷設しなければならず、ケーブル長が長くなると共に該幹線ケーブル20を外壁に止める為のサドルも多数必要となり、材料費及び取付工数が嵩むという問題がある。また、前記幹線ケーブル20は、人の触れる位置にケーブルがこないように外壁に取付けなければならないので、高所での取付作業となり、作業性が良くない。
【0006】
更に、前記幹線ケーブル20の配線作業では、施工現場において作業者が所定の分岐ボックス21の位置まで幹線ケーブル20を敷設した後、各分岐ケーブル23との結線作業を行わなければならないので、作業工数が増えると共に接続ミスが起こる可能性がある。
【0007】
従って、本発明の目的は上記課題を解消することに係り、集合住宅の各住戸にケーブルを配索する作業を効率化すると共に、見栄えを良くすることができる良好な集合住宅用分岐付きケーブル及びその配線方法を提供することである。
【0008】
【課題を解決するための手段】
本発明の上記目的は、集合住宅を構成する上部構造体と基礎部分との間の床下空間に屋外から引き込まれて転がし配線される幹線ケーブルと、該幹線ケーブルの分岐部に予め分岐接続されて各住戸に立ち上げ配線される分岐線ケーブルとを備えた集合住宅用分岐付きケーブルであって、前記分岐部が、互いに平行に延びる一対の幹線ケーブル端末の導体と、これら幹線ケーブル端末に対向して延びる分岐線ケーブル端末の導体とを電気的に接続した後、モールド絶縁被覆してなることを特徴とする集合住宅用分岐付きケーブルにより達成される。
【0009】
また、本発明の上記目的は、複数の分岐線ケーブルを幹線ケーブルの分岐部に予め分岐接続した分岐付きケーブルが、集合住宅を構成する上部構造体と基礎部分との間の床下空間に屋外から引き込まれて転がし配線されると共に、前記各分岐線ケーブルが、床上に配置された前記分岐部から前記集合住宅の各住戸に立ち上げ配線されることを特徴とする集合住宅用分岐付きケーブルの配線方法により達成される。
【0010】
上記構成の集合住宅用分岐付きケーブル及びその配線方法によれば、分岐付きケーブルにおける幹線ケーブルと、該幹線ケーブルの分岐部に予め分岐接続されて各住戸に立ち上げ配線される分岐線ケーブルとが、予め工場内で配線されるので、施工現場での作業工数が減り、接続ミスも生じない。
【0011】
又、前記分岐付きケーブルは、上部構造体と基礎部分との間の床下空間に屋外から引き込まれて転がし配線され、幹線ケーブルが建物の外観部に露出しないので、美観上好ましい。
更に、床下空間に転がし配線される幹線ケーブルは、サドル等の固定具により固定する必要がないので、固定具が不要となると共に固定作業もいらない。又、前記幹線ケーブルは、防火区画ではない共用部分である床下空間の基礎部分に転がし配線されるので、基礎部分との間に特別な防火構造を設ける必要がない。
【0012】
又、前記各分岐線ケーブルは、床上に配置された分岐部から各住戸に立ち上げ配線されるので、前記幹線ケーブルが床下空間に転がし配線されているにも関わらず、該分岐部を点検可能とすることができる。
更に、前記分岐部が、互いに平行に延びる一対の幹線ケーブル端末の導体と、これら幹線ケーブル端末に対向して延びる分岐線ケーブル端末の導体とを電気的に接続した後、モールド絶縁被覆して構成されている。
そこで、床下空間に転がし配線された幹線ケーブルから分岐線ケーブルを立ち上げ配線して該当分岐部を床上に配置する際、該幹線ケーブルを無理に曲げる必要がなく、作業性が良くなる。
【0013】
【発明の実施の形態】
以下、添付図面に基づいて本発明の一実施形態に係る集合住宅用分岐付きケーブル及びその配線方法を詳細に説明する。
図1乃至図3に示した集合住宅31は、図7及び図8に示した集合住宅1と同様に、プレハブ工法等による建物本体32の内側に階段室3を設けた内階段タイプの二階建て集合住宅であり、各階層に四つの住戸が横に並んでいる。
隣接する二つの住戸は、共通する階段室3を介してそれぞれ玄関を利用しており、二階の各住戸は共通する階段4を利用している。
【0014】
上部構造体である前記建物本体32は、図1に示したように、基礎部分であるべた基礎50の上に支承されており、これら建物本体32とべた基礎50との間には、床下空間54が形成されている。
又、前記べた基礎50の所定の立上り壁51には、円形のケーブル敷設口52が形成されている(図4、参照)。尚、ケーブル敷設口52は、前記立上り壁51の上縁に切欠き形成することもできる。
【0015】
そして、図1及び図2に示したように、複数の分岐線ケーブル35を幹線ケーブル33の分岐部36に予め分岐接続した集合住宅用分岐付きケーブル(以下、単に分岐付きケーブルとも云う)30が、前記床下空間54に屋外から引き込まれて転がし配線されると共に、前記各分岐線ケーブル35が、床55の上に配置された分岐部36から前記建物本体32の各住戸に立ち上げ配線されている。
【0016】
前記分岐付きケーブル30は、図5に示したように、前記建物本体32とべた基礎50との間の床下空間54に屋外から引き込まれて転がし配線される幹線ケーブル33と、該幹線ケーブル33の分岐部36に予め分岐接続されて各住戸に立ち上げ配線される複数の分岐線ケーブル35とを備えている。
【0017】
また、前記分岐部36は、図6に示したように、互いに平行に延びる一対の幹線ケーブル(行き帰り2線の幹線ケーブル)33,33の端末の導体33a,33aと、これら幹線ケーブル33,33の端末に対向して延びる複数の分岐線ケーブル35の端末の導体35aとを圧縮コネクタ37で電気的に接続した後、塩化ビニル樹脂等の絶縁材料38によりモールド絶縁被覆して形成されている。
【0018】
即ち、本実施形態における集合住宅用分岐付きケーブル30によれば、分岐付きケーブルにおける幹線ケーブル33と、該幹線ケーブル33の分岐部36に予め分岐接続されて各住戸に立ち上げ配線される複数の分岐線ケーブル35とが、高度に品質管理された工場内で予め配線される。
そこで、施工現場での分岐接続作業を省略することができ、作業工数が減ると共に接続ミスも生じない。
【0019】
次に、上記集合住宅用分岐付きケーブル30の配線方法を説明する。
先ず、上記べた基礎50が施工された段階で、所定の立上り壁51に形成された前記各ケーブル敷設口52に、屋外から引き込こんだ前記分岐付きケーブル30を順次挿通し、床下空間54に転がし配線する。
【0020】
ここで、床下空間54に転がし配線された前記分岐付きケーブル30の幹線ケーブル33は、サドル等の固定具により固定する必要がなく、各ケーブル敷設口52に挿通させるだけで良い。
即ち、前記幹線ケーブル33の配線には、固定具が不要となると共に固定作業もいらない。又、前記幹線ケーブル33は、防火区画ではない共用部分である床下空間54のべた基礎50に転がし配線されるので、前記立上り壁51の各ケーブル敷設口52との間には、耐火性充填剤等の特別な防火構造を設ける必要がない。
【0021】
次に、前記床55の所定位置に形成されたケーブル敷設孔より、各分岐線ケーブル35と共に分岐部36を床55の上に引き出す。
この際、該当分岐部36と共に幹線ケーブル33,33の分岐接続部分も床上に引き上げられるが、該幹線ケーブル33,33の分岐接続部分においては、図4乃至図6に示したように、互いに平行に上方へ延びる一対の幹線ケーブル33,33の端末と、これら幹線ケーブル33,33の端末に対向して下方に延びる分岐線ケーブル35の端末とが接続されている。即ち、行き帰り2線である幹線ケーブル33,33の端末と、各分岐線ケーブル35の端末とが電気的に接続されている。
【0022】
そこで、前記分岐部36から下方に延びる各幹線ケーブル33を略直角に湾曲するように曲げれば良く、折り返すように無理に曲げる必要がないので、分岐部36を容易に引き上げることができ、作業性が良い。勿論、幹線ケーブル33を無理に折り曲げて、ケーブルの損傷を招く虞もない。
【0023】
そして、床55の上に配置された分岐部36は、図4に示したように、点検用ボックス40内に収容される。
前記点検用ボックス40は、上下にケーブルが貫通される箱体41と、該箱体41の全面開口を覆う開閉扉42とを備えており、敷設後の分岐付きケーブル30における分岐部36の点検を可能とする。
尚、前記床55の上に引き出された前記各分岐線ケーブル35は、建物本体32の施工が完了するまでの間、作業の邪魔にならないように前記点検用ボックス40の近傍に纏められる。
【0024】
そして、前記べた基礎50の上に建物本体32が施工された後、図1及び図2に示したように、各分岐線ケーブル35が各住戸毎に立ち上げ配線される。
立ち上げ配線された各分岐線ケーブル35の先端は、階段室3に面して設置された各住戸の積算電力計11に接続される。該積算電力計11は、図3に示したように、配線工事が完了した各住戸の住戸分電盤10に接続されている。
【0025】
また、前記幹線ケーブル33の基端側は、建物本体32の短手方向の一側面(図2中、左側面)に設置された分電盤29及び引込開閉器25を介して、引込線27に接続されている。
即ち、本実施形態の集合住宅用分岐付きケーブル30の配線方法によれば、該集合住宅用分岐付きケーブル30が、建物本体32とべた基礎50との間の床下空間54に屋外から引き込まれて転がし配線されるので、図2に示したように、幹線ケーブル33は建物の外観部に露出せず、分岐線ケーブル35のみが露出するので、建物本体32の外壁に露出する部分が少なくなり、美観上好ましい。
【0026】
また、前記幹線ケーブル33は、建物本体32とべた基礎50との間の床下空間54に転がし配線されるので、図3に示したように、該建物本体32の長手方向に沿って直線的に敷設することができる。
そこで、図8に示したように建物本体2の外壁に沿って敷設していた従来の幹線ケーブル20に比べて、前記幹線ケーブル33のケーブル長を短くでき、該幹線ケーブル33を固定する為のサドル等の固定具も不要となるので、材料費及び取付工数を削減してコストダウンを図ることができる。
【0027】
更に、前記幹線ケーブル33は、防火区画ではない前記床下空間54に転がし配線されるので、ケーブルが貫通する各住戸間の仕切り部分には、例えば天井空間に配線する場合のような特別な防火構造を設ける必要がなく、コスト上昇を招くこともない。
【0028】
又、前記各分岐線ケーブル35は、図4に示したように、床上に配置された点検用ボックス40内に収容された分岐部36から各住戸に立ち上げ配線されるので、前記幹線ケーブル33が床下空間54に転がし配線されているにも関わらず、集合住宅31の施工後も、該分岐部36を点検可能とすることができる。
【0029】
従って、本実施形態の集合住宅用分岐付きケーブル30の配線方法によれば、集合住宅31の各住戸にケーブルを配索する作業を効率化すると共に、見栄えを良くすることができる。
尚、本発明の集合住宅用分岐付きケーブル及びその配線方法は、上記実施形態の構成に限定されるものではなく、本発明の趣旨に基づいて種々の形態を採り得ることは云うまでもない。
【0030】
例えば、上記実施形態においては、各住戸の積算電力計11が、各分岐線ケーブル35の先端に接続されているが、建物本体32の短手方向の一側面に集中計器盤として設置することもできる。
また、上記実施形態においては、建物本体32の内側に階段室3を設けた内階段タイプの二階建て集合住宅31について説明したが、本発明は外階段タイプや、平屋建て又は三階建て以上等の種々の集合住宅にも適用できることは勿論である。
【0031】
【発明の効果】
以上の説明より明らかなように、本発明の集合住宅用分岐付きケーブルによれば、分岐付きケーブルにおける幹線ケーブルと、該幹線ケーブルの分岐部に予め分岐接続されて各住戸に立ち上げ配線される分岐線ケーブルとが、予め工場内で配線されるので、施工現場での作業工数が減り、接続ミスも生じない。
【0032】
又、本発明の集合住宅用分岐付きケーブルの配線方法によれば、分岐付きケーブルが、上部構造体と基礎部分との間の床下空間に屋外から引き込まれて転がし配線され、幹線ケーブルが建物の外観部に露出しないので、美観上好ましい。
【0033】
更に、床下空間に転がし配線される幹線ケーブルは、サドル等の固定具により固定する必要がないので、固定具が不要となると共に固定作業もいらない。又、前記幹線ケーブルは、防火区画ではない共用部分である床下空間の基礎部分に転がし配線されるので、基礎部分との間に特別な防火構造を設ける必要がない。
そこで、前記分岐付きケーブルの材料費及び取付工数を削減してコストダウンを図ると共に、特別な防火構造によるコスト上昇を抑えることができる。
【0034】
又、前記各分岐線ケーブルは、床上に配置された分岐部から各住戸に立ち上げ配線されるので、前記幹線ケーブルが床下空間に転がし配線されているにも関わらず、該分岐部を点検可能とすることができる。
更に、前記分岐部が、互いに平行に延びる一対の幹線ケーブル端末の導体と、これら幹線ケーブル端末に対向して延びる分岐線ケーブル端末の導体とを電気的に接続した後、モールド絶縁被覆して構成されている。
【0035】
そこで、床下空間に転がし配線された幹線ケーブルから分岐線ケーブルを立ち上げ配線して該当分岐部を床上に配置する際、該幹線ケーブルを無理に曲げる必要がなく、作業性が良くなる。
従って、集合住宅の各住戸にケーブルを配索する作業を効率化すると共に、見栄えを良くすることができる。
【図面の簡単な説明】
【図1】本発明の一実施形態に係る集合住宅用分岐付きケーブルの配線方法を説明する為の集合住宅の概略縦断面図である。
【図2】図1に示した集合住宅の部分破断正面図である。
【図3】図1に示した集合住宅の概略水平断面図である。
【図4】図1に示した集合住宅用分岐付きケーブルの要部拡大断面斜視図である。
【図5】図1に示した集合住宅用分岐付きケーブルの全体構成図である。
【図6】図5に示した分岐部の拡大縦断面図である。
【図7】従来の幹線ケーブルの配線状態を説明する為の集合住宅の部分破断正面図である。
【図8】図7に示した集合住宅の概略水平断面図である。
【符号の説明】
30 集合住宅用分岐付きケーブル
31 集合住宅
32 建物本体(上部構造体)
33 幹線ケーブル
35 分岐線ケーブル
36 分岐部
50 べた基礎(基礎部分)
54 床下空間
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cable with a branch for an apartment house and a method of wiring the same, and more particularly to a cable with a branch for an apartment house and a method of wiring the same for improving the efficiency of laying the cable in each dwelling unit of the apartment house.
[0002]
[Prior art]
The apartment house 1 shown in FIG. 7 and FIG. 8 is an inner-staircase type two-story apartment house having a staircase room 3 provided inside a building body 2 by a prefabricated method or the like, and four dwelling units are arranged side by side on each floor. In.
Two adjacent dwelling units use the entrance through a common staircase room 3, and each dwelling unit on the second floor uses a common staircase 4.
[0003]
As shown in FIG. 8, the dwelling unit distribution board 10 in which the wiring work of each dwelling unit is completed is connected to the integrating wattmeter 11 installed facing the staircase 3 which is a common area. 11 is connected to a branch cable 23 connected to the trunk cable 20 via a branch box 21.
[0004]
[Problems to be solved by the invention]
Incidentally, the wiring of the trunk cable 20 is generally performed by an exposed wiring method on the outer wall of the building body 2 as shown in FIG. 7, for example.
Therefore, there is a problem that the trunk cable 20 is exposed to the exterior part of the building body 2 and is not preferable from an aesthetic point of view.
[0005]
As shown in FIG. 8, the trunk line having one end connected to a service line 27 via a service switch 25 installed on one lateral side (the left side surface in FIG. 7) of the building body 2. The cable 20 is laid along a longitudinal outer wall of the building body 2.
Therefore, the trunk cable 20 must be laid along the outer wall of the staircase 3 as well, so that the cable length becomes longer, and a large number of saddles for fixing the trunk cable 20 to the outer wall are required. There is a problem that the number of steps is increased. In addition, since the trunk cable 20 must be attached to the outer wall so that the cable does not come to a position where a person touches, the installation work is performed at a high place, and the workability is not good.
[0006]
Furthermore, in the wiring work of the trunk cable 20, the worker must lay the trunk cable 20 to the position of the predetermined branch box 21 at the construction site and then perform the connection work with each branch cable 23. And connection errors may occur.
[0007]
Therefore, an object of the present invention is to solve the above-described problems, improve the efficiency of laying cables in each dwelling unit of an apartment house, and improve the appearance of a good multi-unit branch cable and a cable. It is to provide a wiring method.
[0008]
[Means for Solving the Problems]
An object of the present invention is to provide a trunk cable that is drawn into the underfloor space between an upper structure and a base part constituting an apartment house from outside and rolled and wired, and is previously branched and connected to a branch portion of the trunk cable. It is a cable with a branch for multi-family housing, comprising: a branch line cable that is set up and wired in each dwelling unit, wherein the branch portion faces a pair of conductors of a trunk cable terminal extending parallel to each other and the trunk cable terminals. The present invention is achieved by a cable with a branch for a multi-family housing, which is electrically connected to a conductor of a branch line cable terminal that extends and then molded and insulated.
[0009]
In addition, the object of the present invention is to provide a cable with a branch in which a plurality of branch line cables are branched and connected in advance to a branch portion of a main line cable, from outside in the underfloor space between an upper structure and a base portion constituting an apartment house. Wiring of a cable with a branch for a multi-family house, wherein the branch cable is pulled in and rolled, and the branch cable is set up and wired from the branch section arranged on the floor to each dwelling unit of the multi-family house. Achieved by the method.
[0010]
According to the cable with a branch for an apartment house having the above configuration and the wiring method thereof, the trunk cable in the cable with the branch and the branch cable that is branched and connected to the branch part of the trunk cable in advance and set up in each dwelling unit are wired. Since wiring is performed in the factory in advance, the number of man-hours at the construction site is reduced, and no connection error occurs.
[0011]
Further, the branching cable is drawn into the underfloor space between the upper structure and the base portion from outside to be rolled and wired, and the trunk cable is not exposed to the exterior of the building, so that it is aesthetically preferable.
Furthermore, since the trunk cable to be rolled and wired in the underfloor space does not need to be fixed by a fixing device such as a saddle, the fixing device is not required and the fixing operation is not required. In addition, since the trunk cable is rolled and wired to the base portion of the underfloor space, which is a common portion that is not a fire protection section, it is not necessary to provide a special fire protection structure between the main cable and the base portion.
[0012]
In addition, since each branch line cable is set up and wired to each dwelling unit from the branch portion arranged on the floor, the branch portion can be inspected even though the trunk cable is rolled and wired in the underfloor space. It can be.
Further, the branch portion is configured by electrically connecting a conductor of a pair of trunk cable terminals extending parallel to each other and a conductor of the branch cable terminal extending opposite to the trunk cable terminal, and then mold-insulating coating. Have been.
Therefore, when the branch line cable is started up from the trunk line cable that is rolled and wired in the underfloor space, and the corresponding branch portion is arranged on the floor, it is not necessary to bend the trunk line cable forcibly, and the workability is improved.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a cable with a branch for an apartment house and a wiring method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The apartment house 31 shown in FIGS. 1 to 3 is an inner staircase type two-story building in which a staircase room 3 is provided inside a building body 32 by a prefabricated method or the like, similarly to the apartment house 1 shown in FIGS. 7 and 8. It is an apartment complex, with four dwelling units on each level.
Two adjacent dwelling units use the entrance through a common staircase room 3, and each dwelling unit on the second floor uses a common staircase 4.
[0014]
As shown in FIG. 1, the building main body 32, which is an upper structure, is supported on a solid foundation 50, which is a foundation, and an underfloor space is provided between the building main body 32 and the solid foundation 50. 54 are formed.
In addition, a circular cable laying opening 52 is formed in a predetermined rising wall 51 of the solid foundation 50 (see FIG. 4). Note that the cable laying port 52 may be formed by notching the upper edge of the rising wall 51.
[0015]
As shown in FIGS. 1 and 2, a multi-unit housing branch cable (hereinafter, also simply referred to as a branch cable) 30 in which a plurality of branch line cables 35 are branched and connected in advance to a branch portion 36 of a trunk cable 33. The branch cable 35 is drawn into the underfloor space 54 from outside and rolled, and the branch cable 35 is set up and wired from the branch 36 disposed on the floor 55 to each dwelling unit of the building body 32. I have.
[0016]
As shown in FIG. 5, the branch cable 30 includes a trunk cable 33 that is drawn into the underfloor space 54 between the building body 32 and the solid foundation 50 from outside and rolled, and A plurality of branch line cables 35 are connected in advance to the branch part 36 and are set up and wired in each dwelling unit.
[0017]
As shown in FIG. 6, the branch portion 36 includes conductors 33a, 33a at ends of a pair of trunk cables (two trunk cables), which extend in parallel with each other, and the trunk cables 33, 33. Are electrically connected to the terminals 35a of the plurality of branch line cables 35 extending opposite to the terminals by a compression connector 37, and then molded and covered with an insulating material 38 such as a vinyl chloride resin.
[0018]
That is, according to the cable with branch 30 for multiple dwelling units in the present embodiment, the trunk cable 33 in the cable with branch and the plurality of branches that are branched and connected to the branch portion 36 of the trunk cable 33 in advance and set up in each dwelling unit. The branch cable 35 is pre-wired in a factory that is highly quality-controlled.
Therefore, the branch connection work at the construction site can be omitted, the number of work steps is reduced, and no connection error occurs.
[0019]
Next, a wiring method of the branching cable 30 for an apartment house will be described.
First, at the stage where the solid foundation 50 is constructed, the cable with branch 30 drawn in from the outdoors is sequentially inserted into the cable laying openings 52 formed on the predetermined rising wall 51, and is inserted into the underfloor space 54. Roll and wire.
[0020]
Here, the trunk cable 33 of the cable with branch 30 that has been rolled and wired in the underfloor space 54 does not need to be fixed with a fixture such as a saddle, but only needs to be inserted into each cable installation opening 52.
That is, the wiring of the trunk cable 33 does not require any fixture and does not require any fixing work. Further, since the trunk cable 33 is rolled and wired on the solid foundation 50 of the underfloor space 54 which is a common part that is not a fire protection section, a fire-resistant filler is provided between each of the cable laying openings 52 of the rising wall 51. There is no need to provide a special fire protection structure such as
[0021]
Next, the branch portion 36 is pulled out onto the floor 55 together with each branch line cable 35 from a cable laying hole formed at a predetermined position on the floor 55.
At this time, the branch connection portions of the trunk cables 33, 33 are also pulled up on the floor together with the corresponding branch portions 36, but the branch connection portions of the trunk cables 33, 33 are parallel to each other as shown in FIGS. A terminal of a pair of trunk cables 33, 33 extending upward and a terminal of a branch line cable 35 extending downward facing the terminals of the trunk cables 33, 33 are connected. That is, the terminals of the trunk cables 33, 33, which are two lines going back and forth, and the terminals of the branch line cables 35 are electrically connected.
[0022]
Therefore, each trunk cable 33 extending downward from the branch portion 36 may be bent so as to be bent at a substantially right angle, and it is not necessary to bend it so as to be folded back. Good nature. Of course, there is no fear that the trunk cable 33 will be forcibly bent to cause damage to the cable.
[0023]
And the branch part 36 arrange | positioned on the floor 55 is accommodated in the inspection box 40 as shown in FIG.
The inspection box 40 includes a box 41 through which a cable passes vertically, and an opening / closing door 42 that covers the entire opening of the box 41, and inspects the branch portion 36 of the branched cable 30 after laying. Is possible.
The branch line cables 35 drawn out on the floor 55 are gathered in the vicinity of the inspection box 40 so as not to disturb the work until the construction of the building body 32 is completed.
[0024]
Then, after the building body 32 is constructed on the solid foundation 50, as shown in FIGS. 1 and 2, each branch line cable 35 is set up and wired for each dwelling unit.
The distal end of each branch line cable 35 that is set up and connected is connected to the integrated wattmeter 11 of each dwelling unit installed facing the staircase room 3. As shown in FIG. 3, the integrated wattmeter 11 is connected to the dwelling unit distribution board 10 of each dwelling unit for which wiring work has been completed.
[0025]
Further, the base end side of the trunk cable 33 is connected to the service line 27 via a distribution board 29 and a service switch 25 installed on one lateral side (the left side in FIG. 2) of the building body 32. It is connected.
That is, according to the wiring method of the multi-unit dwelling cable 30 of the present embodiment, the multi-unit dwelling cable 30 is drawn into the underfloor space 54 between the building body 32 and the solid foundation 50 from outside. Since the wiring is rolled, as shown in FIG. 2, the trunk cable 33 is not exposed to the exterior of the building, and only the branch cable 35 is exposed. Therefore, the portion exposed to the outer wall of the building body 32 is reduced. Aesthetically pleasing.
[0026]
Further, since the trunk cable 33 is rolled and wired in the underfloor space 54 between the building body 32 and the solid foundation 50, as shown in FIG. 3, the trunk cable 33 extends linearly along the longitudinal direction of the building body 32. Can be laid.
Therefore, as compared with the conventional trunk cable 20 laid along the outer wall of the building main body 2 as shown in FIG. 8, the cable length of the trunk cable 33 can be shortened, and the length of the trunk cable 33 for fixing the trunk cable 33 can be reduced. Since a fixture such as a saddle is not necessary, material costs and man-hours for attachment can be reduced, and costs can be reduced.
[0027]
Further, since the trunk cable 33 is rolled and wired in the underfloor space 54 which is not a fire protection section, a special fire protection structure such as a case of wiring in a ceiling space is provided at a partition between the dwelling units through which the cable passes. It is not necessary to provide a device, and there is no increase in cost.
[0028]
Further, as shown in FIG. 4, each branch line cable 35 is set up and wired to each dwelling unit from a branch portion 36 housed in an inspection box 40 arranged on the floor. The branching portion 36 can be inspected even after the construction of the apartment house 31, even though is rolled into the underfloor space 54 and wired.
[0029]
Therefore, according to the wiring method of the branching cable 30 for an apartment house of the present embodiment, the work of laying the cable to each dwelling unit of the apartment house 31 can be made more efficient and the appearance can be improved.
It should be noted that the cable with branch for an apartment house and the wiring method thereof of the present invention are not limited to the configuration of the above-described embodiment, and it goes without saying that various forms can be adopted based on the gist of the present invention.
[0030]
For example, in the above embodiment, the integrated wattmeter 11 of each dwelling unit is connected to the tip of each branch line cable 35, but may be installed as a centralized instrument panel on one side in the lateral direction of the building body 32. it can.
Further, in the above-described embodiment, the inner staircase type two-story apartment house 31 in which the staircase 3 is provided inside the building body 32 has been described. It is needless to say that the present invention can be applied to various apartment houses.
[0031]
【The invention's effect】
As is clear from the above description, according to the cable with branch for an apartment house of the present invention, the trunk cable in the cable with branch and the branch part of the trunk cable are branched and connected in advance to each dwelling unit to be wired. Since the branch line cable is wired in the factory in advance, the number of work steps at the construction site is reduced, and no connection error occurs.
[0032]
In addition, according to the method for wiring a cable with a branch for an apartment house of the present invention, the cable with a branch is drawn in from the outdoors into the underfloor space between the upper structure and the base portion, and is rolled and wired. Since it is not exposed to the external part, it is preferable from the viewpoint of beauty.
[0033]
Furthermore, since the trunk cable to be rolled and wired in the underfloor space does not need to be fixed by a fixing device such as a saddle, the fixing device is not required and the fixing operation is not required. In addition, since the trunk cable is rolled and wired to the base portion of the underfloor space, which is a common portion that is not a fire protection section, it is not necessary to provide a special fire protection structure between the main cable and the base portion.
Therefore, it is possible to reduce the material cost and the number of man-hours of the branching cable to reduce the cost, and to suppress the cost increase due to the special fire prevention structure.
[0034]
In addition, since each branch line cable is set up and wired to each dwelling unit from the branch portion arranged on the floor, the branch portion can be inspected even though the trunk cable is rolled and wired in the underfloor space. It can be.
Further, the branch portion is configured by electrically connecting a conductor of a pair of trunk cable terminals extending parallel to each other and a conductor of the branch cable terminal extending opposite to the trunk cable terminal, and then mold-insulating coating. Have been.
[0035]
Therefore, when the branch line cable is started up from the trunk line cable that is rolled and wired in the underfloor space, and the corresponding branch portion is arranged on the floor, it is not necessary to bend the trunk line cable forcibly, and the workability is improved.
Therefore, the work of laying cables in each dwelling unit of the apartment house can be made more efficient, and the appearance can be improved.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view of an apartment house for explaining a method of wiring a branching cable for an apartment house according to an embodiment of the present invention.
FIG. 2 is a partially broken front view of the apartment house shown in FIG.
FIG. 3 is a schematic horizontal sectional view of the apartment house shown in FIG.
FIG. 4 is an enlarged sectional perspective view of a main part of the cable with branch for an apartment house shown in FIG. 1;
FIG. 5 is an overall configuration diagram of the branching cable for an apartment house shown in FIG. 1;
FIG. 6 is an enlarged vertical sectional view of a branch portion shown in FIG.
FIG. 7 is a partially broken front view of an apartment house for explaining a wiring state of a conventional trunk cable.
FIG. 8 is a schematic horizontal sectional view of the apartment house shown in FIG.
[Explanation of symbols]
30 cable with branch for apartment house 31 apartment house 32 building body (superstructure)
33 trunk cable 35 branch cable 36 branch 50 solid foundation (basic part)
54 Underfloor space

Claims (2)

集合住宅を構成する上部構造体と基礎部分との間の床下空間に屋外から引き込まれて転がし配線される幹線ケーブルと、該幹線ケーブルの分岐部に予め分岐接続されて各住戸に立ち上げ配線される分岐線ケーブルとを備えた集合住宅用分岐付きケーブルであって、
前記分岐部が、互いに平行に延びる一対の幹線ケーブル端末の導体と、これら幹線ケーブル端末に対向して延びる分岐線ケーブル端末の導体とを電気的に接続した後、モールド絶縁被覆してなることを特徴とする集合住宅用分岐付きケーブル。
A trunk cable that is drawn in from the outdoors and rolled into the underfloor space between the upper structure and the base part that constitute the apartment building, and a branch cable that is branched and connected in advance to a branch portion of the trunk cable and is set up and wired to each dwelling unit. And a branch line cable for a housing complex.
The branch portion, after electrically connecting the conductors of the pair of trunk cable terminals extending parallel to each other and the conductor of the branch cable terminal extending opposite to the trunk cable terminals, forming a molded insulation coating. Characteristic cable with branch for apartment houses.
複数の分岐線ケーブルを幹線ケーブルの分岐部に予め分岐接続した分岐付きケーブルが、集合住宅を構成する上部構造体と基礎部分との間の床下空間に屋外から引き込まれて転がし配線されると共に、
前記各分岐線ケーブルが、床上に配置された前記分岐部から前記集合住宅の各住戸に立ち上げ配線されることを特徴とする集合住宅用分岐付きケーブルの配線方法。
A cable with a branch, in which a plurality of branch line cables are branched and connected in advance to a branch portion of a main line cable, is drawn into the underfloor space between an upper structure and a base part constituting an apartment house from outside and rolled and wired,
A method of wiring a cable with a branch for a multi-family house, wherein each of the branch line cables is set up and wired to each dwelling unit of the multi-family house from the branch section disposed on the floor.
JP2002221587A 2002-07-30 2002-07-30 Cable with branch for collective housing, and wiring method for the same Pending JP2004064923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002221587A JP2004064923A (en) 2002-07-30 2002-07-30 Cable with branch for collective housing, and wiring method for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002221587A JP2004064923A (en) 2002-07-30 2002-07-30 Cable with branch for collective housing, and wiring method for the same

Publications (1)

Publication Number Publication Date
JP2004064923A true JP2004064923A (en) 2004-02-26

Family

ID=31941855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002221587A Pending JP2004064923A (en) 2002-07-30 2002-07-30 Cable with branch for collective housing, and wiring method for the same

Country Status (1)

Country Link
JP (1) JP2004064923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010126946A (en) * 2008-11-26 2010-06-10 Toyota Home Kk Underfloor structure of building

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010126946A (en) * 2008-11-26 2010-06-10 Toyota Home Kk Underfloor structure of building

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