Introduction

Need of ensuring safe operation of critical circuits is essential in today’s installations. Normal cables
used in such installations render useless in fire incidences. At Havells, your safety is our concern. Havells
has now developed special type “Fire Survival Cables” through research. These cables - also known as
CIRCUIT INTEGRITY CABLES & are designed to sustain the high temperatures for a defined minimum
period of time under direct fire. These cables are useful to maintain their integrity during the defined period
of fire. The construction of these cables is different if compared with ordinary cables. The conductor is
manufactured with a specially designed heat barrier and fire resistant insulation which resists the fire to
reach conductor surface. The cable continues to remain into operation at high temperatures like 650°C,
750°C and 950°C as per various conditions of operation and applications.
Wires offering same properties are also available.

Specification

These cables are manufactured and tested in accordance with BS 7846, IS 7098(P-1), IEC 69331 and
BS 6387 for required temperatures and duration - depending upon the application of cable and site
conditions.

Constituents

HAVELLS FS CABLES are manufactured with the following materials.
1. Annealed Plain Copper Conductor
2. Heat Barrier Over the Conductor
3. Cross Linked Polyethylene
4. Galvanised Steel Armour
5. Zero Halogen & Low Smoke Compound
The ZHLS compound ascertains the least smoke and hence increased light transmission during burning
of cables. The circuit integrity of HAVELLS FS cables at high temperatures remains unaltered for the
required time period as per the specification defined.