Draka Fire Performance Presentation

• David Oldfield – Product Development Manager Draka UK Industrial Cables

B. S. 5839-1:2002

• B.S.5839 requirements change• Tests and Standards• B.S.5839 Standard/Enhanced

Performance• B.S. 5839 Other issues-Data,System

requirements

B.S. 5839-1:2002 Cable Integrity & Reliability

• Clause 26 – Minimise Cable faults by: • Protection from Mechanical Damage• Protection from Damage by Fire• Segregation from other Circuits• Improved Identification

4 Cable Types B.S.5839-1:2002• B.S.7629• B.S.7846• B.S.6207• Other Designs with

equal performance

• Existing tests are deemed inadequate

•

B.S.5839-1:2002 Tests and Approvals

• B.S.6387 CWZ• BS5839 – EN50200• Standard and Enhanced performance• B.S.8434:2003• B.S.7629• LPCB,Basec

VIDEO PRESENTATIONS

• B.S.5839 STANDARD AND ENHANCED TESTING PROTOCOLS

• B.S.6387 TESTING PROTOCOLS

BS 6387 CATEGORY CRESISTANCE TO FIREBS 6387 CATEGORY CRESISTANCE TO FIRE

To pass category C, cables must maintain circuit integrity at 950oC for 3 Hours

RESISTANCE TO FIRE SYMBOL

650oC for 3 Hours A

750oC for 3 Hours B

950oC for 3 Hours C

BS 6387 CATEGORY WRESISTANCE TO FIRE & WATER

BS 6387 CATEGORY WRESISTANCE TO FIRE & WATER

To pass category W, cables must maintain circuit integrity at 650oC for 15 minutes, then for 15 minutes with fire and water

RESISTANCE TO FIRE & WATER SYMBOL

650oC for 15 minutes, then for

15 minutes with fire and water W

BS 6387 CATEGORY ZRESISTANCE TO FIRE WITH MECHANICAL

SHOCK

BS 6387 CATEGORY ZRESISTANCE TO FIRE WITH MECHANICAL

SHOCKTo pass category Z, cables must maintain circuit integrity at 950oC for 15 minutes with mechanical shock every 30 seconds.

RESISTANCE TO FIRE WITH SYMBOLMECHANICAL SHOCK

650oC for 15 minutes with mechanical shock. X

750oC for 15 minutes with mechanical shock. Y

950oC for 15 minutes mechanical shock Z

BS 5839 - 1 : 2002• ENHANCED TEST• 930 DEGREES• 1 HOUR FIRE• 1 HOUR

FIRE+WATER• IMPACT/5

MINUTES

• STANDARD TEST• 830 DEGREES• 15 MINUTES FIRE• 15 MINUTES

WATER• IMPACT/5

MINUTES

Cable Selection B.S.5839• B.S. 5839:1988

• Pliable Cable to B.S.7629 OR

• Mineral cable to B.S.6207

• B.S.5839:2002

• “Standard” Cable to Clause 26.d, OR

• “Enhanced” Cable to Clause 26.e

Enhanced Installation Requirements

• Particular building types in which cables are required to operate longer because of multi-phase evacuation.

• Unsprinklered buildings greater than 30m in height.• Buildings containing Critical signal paths serving areas

where people may remain for a period during a fire.• Buildings where Designers/Specifiers consider an

Enhanced performance is required on the basis of a Fire Risk Assessment

POWER SUPPLY REQUIREMENTS

• B.S.5839 Clause 26.2b: Cables for all parts of the critical signal path and for the final circuit providing low voltage mains supply to the system should be “Standard” or “Enhanced”, and be comprised of one of the four fire performance cables specified .

Other Issues B.S. 5839

• Data Transmission Requirement

• System Requirements

B.S.5839 Data Transmission• ……the electrical characteristics of all

cables,such as voltage drop,current carrying capacity,impedance and,where appropriate,ability to transmit data,should be suitable for the system.

• No objective criteria are defined• Debate continues• Some proposals are unrealistic

System TestingSystem Testing

B.S.5839-1, now requires that where employed ,through joints should have equal performance to the Alarm cable.

Any

Questions ?