Overview: The EBK flushfloor ducting system is designed for underfloor installations in large office buildings, especially where low screed heights are necessary. It provides a grid system for power, data, and communication networks, with installation units extending beyond the floor level.

Specifications: The system is suitable for screed heights up to 50 mm and complies with DIN VDE 0634 Parts 1 and 2. It offers multi-compartment ducting for cable separation and is available in duct heights of 27, 37, and 47 mm, and widths of 190 and 250 mm. The ducts are made from hot-dip galvanized steel. The screed thickness must be at least 30 mm to prevent cracks, with a screed height of 60 mm for on-floor systems and 70 mm or greater for underfloor systems.

Planning Considerations: Important factors include the number of cables, required workplace connections, filling factor (not exceeding 0.6), connection grid density, screed design and thickness, and expected load. The system allows for height adjustment of +20 mm.

Installation Procedures: The system is laid on raw screed, with couplers supporting duct joints. Junction and branch boxes are used for cable insertion and direction changes. Protective lids prevent soiling during installation, replaced by function lids post-screed hardening. Correct screed application is emphasized, with couplers used to connect and adjust the height of screed-flush underfloor ducts. Riser bends facilitate vertical direction changes.

Components: The system includes installation ducts, junction and branch boxes, couplers, riser bends, and end caps. Junction and branch boxes come in three heights and can be equipped with various lids for different applications. Accessories such as carpet protection frames and floor covering contact frames are also included.

Selection Aids: Ducting and junction box sizes can be determined based on cable cross-sections and trunking size, with a recommended filling factor of 50%.

Key Data: Tables provide details on usable cross-sections, number of cables per ducting size, and specific product dimensions and weights. For example, the EBK coupler has a width of 190 mm and a length of 370 mm, with a weight of 37,600 kg/% per piece.

Best Practices: Ensure screed thickness is at least 30 mm to prevent cracks. Use couplers for support and height adjustment. All metallic components must be included in protective measures according to DIN standards.

Standards and Recommendations: Recommendations include ensuring proper screed thickness and using appropriate components for specific duct heights and widths. The document also mentions compliance with DIN VDE 0634 for moisture protection.