[School Facilities] Underground Beam Sleeve: Power Cable Entry _ Sound Waterproofing

Related Videos

basic information

<Specifications> ●Waterproof performance test value (smooth inner pipe) 0.1MPa×72 hours (This product does not guarantee complete waterproofing.) ●Composition - Sleeve material: Rigid polyvinyl chloride pipe (JIS K 6741) VU or VP - Sleeve penetration pipe: Underground buried electric wire protection pipe, Furukawa Electric Co., Ltd. Eflex (or flame-retardant Eflex) - Sealing material: Curing waterproof material filled in 2 locations ↓↓↓↓↓↓■Why is the waterproof performance of the pipe-in-sleeve set to "3 days"?■↓↓↓↓↓↓ ◆Local governments state that "the depth of flooding due to floods is 1-3m, and the duration of flooding is generally half a day to 1 day, but in some places it may last from 1 to 3 days." ◆Emergency power generation equipment in hospitals and other facilities is recommended to operate continuously for "more than 72 hours (3 days)" according to laws and guidelines. ◆The time until the restoration of lifelines and the supply system for relief supplies is assumed to be 72 hours. ◆Time limit for rescue activities: The time during which the survival rate decreases sharply for rescues from collapsed buildings is within "72 hours (the golden 72 hours)."

Price range

Delivery Time

Applications/Examples of results

*R2.6 Publication of the National Transportation and Infrastructure Bureau "Guidelines for Flood Prevention Measures for Electrical Equipment in Buildings" *R3.4 Japan Sewage Works Association "Promotion of Waterproofing (Final Version)" The adoption of ●● cast iron pipes is rapidly increasing in the related construction work! <Public Works / Adoption Records Excerpt> (Statistics from January to June 2026) - Osaka Prefecture ●● City) Construction of communication equipment, etc. due to expansion - Shizuoka Prefecture ●● City) Electrical equipment construction for the ●● District Center in fiscal year 2027 - Kyoto Prefecture ●● City) Electrical equipment construction related to the new building of ●● City Hospital (Section 1) - Kanagawa Prefecture ●● City) Electrical equipment construction for the expansion of ●● Elementary School building No. 1 - ●● Prefecture Civil Engineering Department Maintenance Division) (Tentative name) New electrical equipment construction for ●● Special Support School - Aichi Prefecture ●● City) Integrated redevelopment project for ●● City School Lunch Center (For other records, please download the separate adoption record sheet) Due to the recent shortage of construction workers and skilled labor, while there are materials/methods that can be "easily constructed," there are also those that underestimate waterproof performance, leading to an increasing trend in water leakage issues at power supply entry points in recent years. To prevent water leakage accidents that could lead to large-scale repair work later on, we advocate for the adoption of pipe-in-sleeve systems that combine both "labor-saving at construction sites" and "the integrity of waterproof performance in buildings."

Detailed information

• 

  After concrete pouring

• 

  Close-up of pipe in sleeve

• 

  Before connection

• 

  AquaFit connection work 1

• 

  AquaFit connection work 2

• 

  Aqua Fit Connection Work 3

• 

  Connection complete.

• 

  Close-up of pipe in sleeve (after connection)

Line up（16）