Insudite is the name of the rugged composite insulation developed by Prysmian for its FP range of fire-resistant cables. It has been formulated to provide the best combination of fire resistance, electrical performance and strength to survive the harsh environment of an active building site.
Insudite is tough, durable and highly damage resistant, making it ideal for all installations, but in particular those where there is the potential for third party damage to the cable after first fix. For example, fire alarm cables above suspended ceilings or in congested cable risers.
Insudite’s hard skin ensures that Prysmian’s FP fire resistant cables have significantly greater resistance to damage when compared to the soft silicone insulation commonly used.
Insudite vs Silicone
As silicone is soft, it can be prone to damage during and after installation, so care needs to be taken while unreeling and following first fix to prevent weakening the insulation and potentially causing faults throughout its service life.
Ultimately, any damage to the insulation will diminish the reliability of an installation and may well delay a projects handover. By choosing a more robust insulation, installers can reduce delays associated with fault finding, commissioning and rework.
|Test Criteria||Standard Silicone||FP Gold and FP Plus Insudite||Insudite improvement|
|Impact (impact resistance to BS2G230)||5N at 250mm||5N at 500mm||200%|
(at ambient BS2G2G330)
|75 cycles to failure||4750 cycles to failure||6300%|
|1 cycle at 2.5N||5 cycles at 2.5N||500%|
|Cut Through blunt object||18N||62N||300%|
|Cut through sharp object||7N||22N||300%|