JPH0339331U - - Google Patents

Info

Publication number
JPH0339331U
JPH0339331U JP9887989U JP9887989U JPH0339331U JP H0339331 U JPH0339331 U JP H0339331U JP 9887989 U JP9887989 U JP 9887989U JP 9887989 U JP9887989 U JP 9887989U JP H0339331 U JPH0339331 U JP H0339331U
Authority
JP
Japan
Prior art keywords
shield
induction noise
protection pipe
cable protection
underground cable
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.)
Pending
Application number
JP9887989U
Other languages
English (en)
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 filed Critical
Priority to JP9887989U priority Critical patent/JPH0339331U/ja
Publication of JPH0339331U publication Critical patent/JPH0339331U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Description

【図面の簡単な説明】
第１図は考案の１実施例に係る遮蔽層付地中埋
設ケーブル保護管の断面図、第２図は従来の地中
埋設ケーブル保護管の構造図、第３図は電子制御
機器へのノイズ侵入径路図、第４図は静電誘導ノ
イズの発生機構図、第５図は電磁誘導ノイズの発
生機構図、第６図は静電誘導ノイズ対策図、第７
図は電磁誘導ノイズ対策図、第８図は磁性体の遮
蔽効果図である。

Claims (1)

    【実用新案登録請求の範囲】
  1. 地中埋設ケーブル防護管を静電誘導ノイズおよ
    び電磁誘導ノイズに対して遮蔽するために、導体
    を包囲する静電遮蔽体と、その上を包囲する電磁
    遮蔽体とを具備していることを特徴とする地中埋
    設ケーブル防護管。
JP9887989U 1989-08-24 1989-08-24 Pending JPH0339331U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9887989U JPH0339331U (ja) 1989-08-24 1989-08-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9887989U JPH0339331U (ja) 1989-08-24 1989-08-24

Publications (1)

Publication Number Publication Date
JPH0339331U true JPH0339331U (ja) 1991-04-16

Family

ID=31647958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9887989U Pending JPH0339331U (ja) 1989-08-24 1989-08-24

Country Status (1)

Country Link
JP (1) JPH0339331U (ja)

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