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| Fire Resistant Low Smoke |
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Cables very seldom cause fires, but being an integral
part of the total machinery and equipment in a power system, they
are subjected to fire-hazards in a power system; they are subjected
to fire-hazards in the event of a fire. Continuous R&D efforts
and "End-use Simulation experiments & tests", have enabled
formulations of superior cable compounds, which are capable of significantly
reducing the hazards of fire-propagation and ensuring lower levels
of smoke and evolution of corrosive acid gases. |
Typical FRLS Properties exhibited by
these Cables:
| Minimum oxygen Index |
Min. 29 |
| Temperature Index |
Min. 250°C |
| Halogen Acid Gas Generation Test
|
Max. 20% (by weight) |
| Smoke Density Rating Test |
Max. 60% |
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Flame Retardance withstands flame test as per specification IEC
332-1, (single cable), TEEE-383 (bunched cable) Swedish Chimney
SS-424-14-75, (Class F3 upto cable diameters of 70 mm only).
Construction Details, Dimensions and Weight of 'FRLS' Cables
: The details furnised in the relevant Tables will remain
same for 'FRLS' Cables,with XLPE insulation.The FRLS Cables will
fully conform to IS :709S (Part-ll) - 1985.
Electrical Characteristics, Ratings and Installation Data
of FRLS Cables : There will be no change in the relevant
parameters furnished in the various Tables on account of the additional
'FRLS' properties in the PVC sheath of the cables. The cables will
fully conform ton the electrical cables. The cables will fully conform
to the electrical test requirements of IS: 7098 (part-II) -1985.
Cable Marking : The 'FRLS' cables will bear an
additional legend 'FRLS' on the sheath, which will be an addition
to the relevant Cable identification and Manufacturer's identification,
stipulated in IS: 7098 (Part-II)-1985 and will be marked, similarly.
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