survivability - Circuit Integrity CI cables - 2 hour rating

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Leo
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survivability - Circuit Integrity CI cables - 2 hour rating

Post by Leo »

Circuit Integrity CI cables
http://www.fpemag.com/archives/article. ... d=47&i=378
http://www.md-dc-va-afaa.com/pdf/Surviv ... abling.pdf

CI vs. CIC Cables:
CI cables have been tested to pass the 2 hour UL2196 Flame Test not in conduit. CI cables can not be deployed into conduit and pass the 2 hour flame test, therefore they are riser rated.
CIC cables have been tested to pass the 2 hour Flame Test in Conduit, therefore can be placed in a Plenum space. CIC cables cannot be deployed in a 2 hour application outside the conduit.


http://www.haifire.com/magazine/circuit_security.pdf
http://www.tycothermal.com/assets/north ... m-0203.pdf
http://www.ptsupply.com/pdf/Catalog/SSA ... -Rated.pdf
http://www.drakausa.com/documents/productPDF/FPU-03.pdf
http://datatechtx.com/pdf/lifeline/FPU-01.pdf
Leo
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Posts: 887
Joined: Thu Dec 11, 2008 7:52 am

survivability - Circuit Integrity CI cables - NFPA72 -007

Post by Leo »

NFPA72 - 2007 Edition

6.9.10* Relocation and Partial Evacuation. The requirements of 6.9.10 shall apply only to systems used for relocation or partial evacuation.


6.9.10.4 The requirements of 6.9.10.4 shall apply to both audible (tone and voice) and visible notification appliance circuits.

6.9.10.4.1* Fire alarm systems used for partial evacuation and relocation shall be designed and installed such that attack by fire within an evacuation signaling zone shall not impair control and operation of the notification appliances outside the evacuation signaling zone. Performance features provided to ensure survivability shall be described and technical justification provided in the documentation submitted to the authority having jurisdiction with the evaluation required in 6.4.3.1.

A.6.9.10.4.1 One or more of the following means might be considered acceptable to provide a level of survivability consistent with the intent of this requirement:
(1) Installing a fire alarm system in a fully sprinklered building in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems
(2) Routing notification appliance circuits separately
(3) Using short-circuit fault-tolerant signaling line circuits for controlling evacuation signals The requirement for notification appliances to operate in those evacuation signaling zones that are not attacked by fire will also require that circuits and equipment that are common to more than one evacuation signaling zone be designed and installed such that the fire will not disable them. For instance, a signaling line circuit used to control notification appliances in multiple evacuation signaling zones should be properly designed and installed so that one fire would not impair the signaling line circuit, rendering the notification appliances serving more than one evacuation signaling zone inoperative. Power supply requirements of Chapter 4 apply to these systems. The secondary power supply requirements of that chapter meet the intent of these survivability requirements.

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6.9.10.4.2 All circuits necessary for the operation of the notification appliances shall be protected until they enter the evacuation signaling zone that they serve. Any of the following methods shall be considered acceptable as meeting the requirements of this subsection:

A.6.9.10.4.2(4) Paragraph 6.9.10.4.2 requires the protection of circuits as they pass through fire areas other than the one served. The purpose of this is to delay possible damage to the circuits from fires in areas other than those served by the circuits and to increase the likelihood that circuits serving areas remote from the original fire will have the opportunity to be actuated and serve their purpose. Note that the protection requirement would also apply to a signaling line circuit that extends from a master fire alarm control unit to another remote fire alarm control

(1) A 2-hour fire rated circuit integrity (CI) cable
(2) A 2-hour fire rated cable system (electrical circuit protective system)
(3) Routing the cable through a 2-hour rated enclosure
(4) Performance alternatives approved by the authority having jurisdiction
(5) Buildings fully protected by an automatic sprinkler system installed in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and with the interconnecting wiring or cables between the emergency voice/alarm communication control equipment locations installed in metal raceways and in accordance with Article 760 of NFPA 70

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6.9.10.4.3 Where the separation of emergency voice/alarm control equipment locations results in the portions of the system controlled by one location being dependent upon the control equipment in other locations, the circuits between the dependent controls shall be protected against attack by fire using one of the following methods:

(1) A 2-hour fire rated circuit integrity (CI) cable
(2) A 2-hour fire rated cable system (electrical circuit protective system)
(3) Routing the cable through a 2-hour rated enclosure
(4) Performance alternatives approved by the authority having jurisdiction
(5) Buildings fully protected by an automatic sprinkler system installed in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and with the interconnecting wiring or cables between the emergency voice/alarm communication control equipment locations installed in metal raceways and in accordance with Article 760 of NFPA 70

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6.10.1.16* All circuits necessary for the operation of two-way telephone communication systems shall be installed using one of the following methods:

(1) A 2-hour fire rated circuit integrity (CI) cable
(2) A 2-hour fire rated cable system (electrical circuit protective system)
(3) Routing the cable through a 2-hour rated enclosure
(4) Performance alternatives approved by the authority having jurisdiction
(5) Buildings fully protected by an automatic sprinkler system installed in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and with the interconnecting wiring or cables between the emergency voice/alarm communication control equipment locations installed in metal raceways and in accordance with Article 760 of NFPA 70

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((Option 5 permits the use of non-CI-type cables installed in metal raceway when the building is fully sprinklered.))
Leo
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survivability - Circuit Integrity CI cables - 2 hour rating

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Possible Survivability Options Proposed for the 2010 edition of NFPA 72
Pathway Survivability Level 0. In Pathway Survivability Level 0, pathways shall comply with the requirements of NFPA 70® Articles 760, 770 or 800.

Pathway Survivability Level 1. In Pathway Survivability Level 1, pathways in buildings shall be fully protected by an automatic sprinkler system in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and with the interconnecting wiring or cables installed in metal raceways.

Pathway Survivability Level 2. Pathway Survivability Level 2 shall consist of the following:

1. 2-hour fire-rated circuit integrity (CI) cable;
2. 2-hour fire-rated cable system [electrical circuit protective system(s)];
3. 2-hour fire-rated enclosure or protected area; and
4. 2-hour performance alternatives approved by the authority having jurisdiction.

Pathway survivability Level 3. Pathway Survivability Level 3 shall consist of one of the following:

1. Pathways in buildings fully protected an automatic sprinkler system in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and 2-hour fire-rated circuit integrity (CI) cable;
2. Pathways in buildings fully protected an automatic sprinkler system in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and 2-hour fire-rated cable system [electrical circuit protective system(s)];
3. Pathways in buildings fully protected and automatic sprinkler system in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and 2-hour fire-rated enclosure or protected area; and
4. Pathways in buildings fully protected an automatic sprinkler system in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and 2-hour performance alternatives approved by the authority having jurisdiction.
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