The definition of "H" class division is similar to "A" class, but with a higher furnace temperature. The hydrocarbon flame brings the furnace temperature to 1100°C in a few minutes. Structural integrity and the temperature rise shall be maintained during 2 hours burning, and is mostly applied to oil and gas platforms, such as FPSO.

Composition

• HK-M Type Intumescent Firestop Sealant: Seal the two ends of cable coaming, with a minimum thickness of 20mm.

• HK-G Type Intumescent Firestop Sleeve: Wrap cables and fill the gap in remaining spaces, with a minimum length of 210mm.

Technical Data

• Fire Rating: H60

• Water Tightness: 0.25Mpa

• Air Tightness: 0.10Mpa

• Maximum Dimension of Cable Coaming: 800x300x250mm

• Maximum Cable OD of Multiple Cables: Φ53.4mm, with maximum cable occupancy rate of 27%

Approved by

CCS, ABS, DNV and BV

Installation Guidance

HK-MG Type Cable Transit Installation Guidance (youtube.com)