Common FAQ regarding Fire Resistant Cables

Why should I use Fire resistant cables?
Certain electrical circuits are required to continue to operate in a fire. In particular, for fire alarm circuits, as defined in BS5839-1:2002, cables are usually required to operate for 30 minutes but in certain situations they must operate for 120 minutes.

Why is BS6387 CWZ no longer applicable for Fire Alarms to BS5839?
To meet the need for an integrated fire test on a single cable sample and to allow selection of cables for more onerous conditions.

What are the new requirements of BS5839?
In order to meet the requirements of the new BS5839-1, cables now have to meet these 3 requirements:
1. The constructional requirements of BS7629, BS7846 or BSEN 60702-1. 
2. The test requirements of EN 50200 – PH30 (standard) or PH120 (enhanced).
3. The test requirements of BS8434-1 (standard) or BS8434-2 (enhanced).
Different performance levels are required for standard and enhanced application areas.

What is the Difference between Standard and Enhanced?
Standard cables have to operate for 30 minutes, Enhanced cables 120 minutes, under defined test conditions.

When is Enhanced cable required?
When installing fire alarm system to BS5839-1:2002 in large large unsprinklered high rise or certain multiple evacuation buildings, where operation is required for extended periods.

Do Pirelli have cables that meet these standards?
For standard application areas use FP200 GOLD®, for enhanced application areas use FP Plus™.

Does BS5839 advise on cable fixings?
The use of fire resisting support is now required by BS5839. Simple plastic cable clips, ties or trunking would not be suitable. Pirelli have introduced a new fixing system known as FP FIREFIX which makes installation quicker and easier. Ask for more information.

How can I be sure the cable I use is fully approved?
By using Pirelli FP200 Gold® or Pirelli FP Plus™.