The cables specified in this technical specification are primarily intended for use in emergency lightning, fire detection and fire alarm system circuits. For fixed installation indoors and outdoors, not to be laid directly in soil nor in cast concrete. May be used for installations, when circuit integrity is required in case of fire. Where needed halogen free, non corrosive gases and low smoke density cables. Self extinquishing, no after-burning.
BS 7629 Applicable parts
Circular, solid copper