[Electrical Equipment Construction] Flood Prevention! Underground Exterior Wall "Pipe-in-Sleeve T-Type"

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basic information

<Specifications> ●Waterproofing ・Test value (smooth inner surface pipe) 0.1MPa×72 hours (This product does not guarantee complete waterproofing) ◆PVC sleeve outer circumference "drainage flange" 6mm thick * 50mm wide welded with the same material◆ ●Composition ・Sleeve material: Rigid polyvinyl chloride pipe (JIS K 6741) VU pipe ・Sleeve penetration pipe: Underground buried electrical wire protection pipe, Furukawa Electric Co., Ltd. Eflex (or flame-retardant Eflex) ・Sealing material: Cured waterproof material filled in two locations <Notes> * The waterproof test is conducted at the penetration gap, not at the "drainage flange" part. * Please select FEP/penetration pipe connection materials from Furukawa Electric Co., Ltd. Eflex series. * The "waterproof performance" of the sealing material (cured waterproof material) is an internal measurement value and is not a guaranteed value. [Contact Information] ・Planning/Proposal: Furukawa Elecom Co., Ltd. New Business Promotion Office TEL: 03-5297-8711 FAX: 03-5297-8705 ・Design/Manufacturing: EPJ Co., Ltd. TEL: 03-5643-8137 FAX: 03-5643-8138 Email: info@epj-inc.co.jp

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Applications/Examples of results

*R2.6 Publication of National Transportation Document "Guidelines for Flood Prevention Measures for Electrical Equipment in Buildings" *R3.4 (Public Foundation) Japan Sewerage New Technology Organization "Promotion of Waterproofing (Final Version)" The adoption of these measures is rapidly increasing in construction projects. "Pipe-in-Sleeve (PIS)" <Excerpt of Adoption Records by Local Governments> (Statistics from January to March 2026) - Osaka Prefecture, City of ●●: Communication equipment and other construction work related to the expansion of ●●●● - Shizuoka Prefecture, City of ●●: Electrical equipment construction for the (tentative name) ●● District Center in fiscal year 2027 - Kyoto Prefecture, City of ●●: Electrical equipment construction related to the new building construction of ●● City Hospital (Section 1) - Kanagawa Prefecture, City of ●●: Electrical equipment construction for the expansion of ●● Elementary School building, part 1, etc. Due to the recent shortage of construction workers and skilled labor, while "easy installation" is possible, there are also materials and methods that underestimate waterproof performance, leading to an increasing trend in leakage problems with underground beams in recent years. To prevent leakage accidents from resulting in large-scale repair work later on, we advocate for the adoption of Pipe-in-Sleeve (abbreviated as PIS), which combines both "labor-saving at construction sites" and "the soundness of waterproof performance in buildings," as well as Pipe-in-Sleeve T-type (abbreviated as PIS-T).

Detailed information

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  Pipe-in-sleeve installation 1

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  Pipe-in-sleeve installation 2

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  Pipe-in-sleeve installation 3

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  Before pipe-in-sleeve demolition

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  After pipe-in-sleeve demolition

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  Pipe-in-sleeve connection preparation complete.

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  Pipe-in-sleeve connection work 1

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  Pipe-in-sleeve connection completed.

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  Pipe-in-sleeve connection completed (close-up)

Line up（16）