Fire resistant fieldbus cables

[wan]

Hi all,
I have very little information on Fieldbus system.
Hope we could share some of the info here.

I have an enquiry where the customer is looking for Fieldbus cable with fire resistant properties to IEC60331-21.

Is it feasible to have fieldbus system for fire alarm system?

Hope everyone can input lots of info here...

Thanks in advance.

[IanVerhappen]

The best place to look for Fieldbus compliant cable is from the approved cable manufacturers on the Foundation site at http://www.fieldbus.org/index.php?option=com_mtree&task=search&Itemid=324&ffbstatus=Registered&ffbmfg=&ffbcategory=Cable should get you started.

[aagostin]

If you are referring to a SIL-rated (safety) application: SIL-rated FF products are not yet available, so that a questions for cable is meaningless.

If you are referring to a general purpose application without a SIL rating: yes, all FF cable manufacturers also offer you cables according to low smoke/Zero smoke, halogen-free, etc etc.
Ask the cable manufacturers (Northwire, Belden, Lapp, Leoni-Kerpen, etc etc) for details.

[IanVerhappen]

In addition to Andreas' comment about SIL abilities the good news is that because SIF uses a black channel, you will be able to use the same physical layer products (cable, power supply, device couplers) for a safety related system as for your conventional H1 network.