Finally, only a simple spark or flame is missing to trigger the infernal process. Iec 603312 tests for electrical cables under fire conditions. Low smokes cables have a sheath designed to limit the amount of smoke and toxic halogen gases given off during fire situations. Iec 6033121 fe180 bs 6360 bs 6387 cwz rohs directives. Fire rated lowsmoke halogenfree cable single core, 600v lowsmoke halogenfree jacket lowsmoke halogenfree insulation firebarrier tape copper conductor h nic al data fire symbol. Cable applications guide fossil power plant regulation fire reaction low high voltage cables and. Xlpe insulated cable iec 60840 underground transmission line 30 kv to 150 kv fire rated cables iec 60331, iec 60332, bs 6387, iec 61034, iec 754 oil and gas industry, high rise buildings bare conductor bs 215, astm d 233 overhead transmission line low frequency cables iec 60189, skmm data and communication cables fiber optic cables iec 60794. Iec 6072124 iec 62271100 iec 62271102 iec 62271103 iec 62271104 iec 62271105 ieee guide 998.
Iec 603311121 method of test defined in iec 6033111 21 for. Halogen parts or other material in small quantities can be easily identified with this. Iec 60332322 up to 25 cat ad en 60332322 up to 25 cat. The title of iec60331 is test for electric cables under fire conditions circuit integrity. Iec 60331 21 tests for electric cables under fire conditions circuit integrity part 21. Flame temperature determined by the stipulated setting of the burner flame. Iec 603323bs 40663addison fire resistant cableflame. The title of iec 60331 is test for electric cables under fire conditions circuit integrity. A controlled air flow rate absorbs the generated gases in a appropriate solution. Both the iec and the bec adopted two different standards, namely the iec 60331 and bs 6387. The twisted pair cables provide high data transmission rates and have been developed to mimic cat 5e cabling as closely as possible. Well defined and documented system comprising of system manual. Development of flame retardant and fireresistant optical. Method of test defined determining the circuit integrity.
The cable is into a tubular oven with gradually increasing of temperature up to 920c. Pvc cable fire demo test a halogenfree cable would not burn easily unlike a traditional cable. Other standard also mentioned about fire resistant, such as bs en 50200. Many tests are carried out during manufacturing or as final inspections. Surpasses the requirements of bs 6387 cwz or iec 60331 reduced flame propagation to iec 60332 part 3c bs 4066 part 3c or iec 60332 part 3m bs 4066 part 3m with. Circuit insulation integrity in accordance with iec 60331 faq. Tratos flame resistant cable meets flame propagation testing bsen60332, en50265 and bs 4066. Cable markings electric cable 600v bs 5467 draka uk basec made in uk cable function power cable for residential or industrial areas. Iec 60695110 states that fire resistance tests are developed to assess functional. Iec 60331 1999 details a method of test for assessing the fire resisting characteristics of a cable. As per latest bs 6387 specification, categorization of cable as follows. Iec flame and fire standards central cables limited. Bs 6387 cat w15 mins at 6500c plus 15 mins with water spray resistance to fire with mechanical shock.
Ad measurement of smoke density this test checks smoke development when burning the cable or the impairment of the visibility by burning cables. Cablosam tapes comprise samica mica paper, a support of glass fabric or. Generic description product reference thickness diameter weight per unit area or density. Tk fr 30 standard cables 30 minutes at 830c or tk fr 120 enhanced. Category f2 as per bs 7846 resistant fire, resistant fire with water, resistant fire with mechanical shock assessed separately as per bs 6387. The purpose of this test method is to determine whether a cable can maintain circuit integrity when it is exposed to the fire conditions described within the method. Method for determination of amount of halogen acid gas evolved during combustion of polymeric materials for cables. Scope of test iec 6033121 specifies a test procedure and gives a performance requirement. Instrumentation cables for applications with special requirements in case of fire, i. It is then exposed to a 610mm long tubeype gs burner.
Fire resistant cables two core, overall screen, hffr sheath bs6387 cwz c1044, c1045, c1283, c1284, c1289 rev. Standards for fire resistant cablesfireproof cables. Fire resistant cables are designed for maintaining circuit integrity during a fire. Scope of test iec 60331 21 specifies a test procedure and gives a performance requirement. Bs 6387 cwz bs 7629 iec 60331 21 en 50200 bs 84342 etc. An experimental study on fire rated cables for the. Iec 60331, ul 1709 uses ceramafiable silicone insulation that prevents the conductors from shorting out. Iec 60331 part 11 and associated part 21, 23 and 25.
Iec 603311999 details a method of test for assessing the fire resisting characteristics of a cable. Fire performance cables flame retardant low smoke cables flame retardant low smoke halogen free cables fire resistant low smoke halogen free. Any cable, cable compound and fire retardant manufacturer expecting to develop and provide an optimized formulation for their cables. We use the term fire resistant to indicate a cable that will continue to operate in the presence of a fire and. Elecrical coninuiy is checked throughout a 3hour exposure to the gs. The novel flame retardant and fireresistant optical cable which can broadly be popularized to extent of subway base station, tunnel traffic and so on, with ultrahigh performance of flame retardant and fireresistant, has great value in the application fields. Fire resistant and fire retardant cable sheaths are design to resist combustion and limit the propagation of flames. Halogen parts or other material in small quantities can be easily. However, the test methods employed are quite different. Contact our technical team to discuss your specific project or applications requirements. Many of them are attended by customers or third part inspectors. Cei 203621 iec 6033121 electrical cables up to 0,61 kv. Iec 60331 1121 executive summary objective to determine the performance of the following cable when it is subjected to the conditions of test specified in iec 60331 21.
Bs5467 cable bs6195 cable bs6387 cable bs6724 cable bs76291 cable bs7870 cable bs8436 cable csa 22. Development of flame retardant and fireresistant optical cable based on ceramic sheathing materials. Iec 6033121 tests for electric cables under fire conditions circuit integrity part 21. Test of the fire behaviour on a single core or a single cable. Iec 6033111 tests for electric cables under fire conditions circuit integrity part 11. It is divided in following parts that describe the test modes, the conditions, and the equipment to use. Resistant fire with mechanical shock at 830c for 0. Test vs standard iec 603311125 90 minutes fire alone at 750. Bs 6387 bs 8434 en 50200 british and european fireresistant standards. Less than 1db better bs 6387 category w 15 minutes fire alone and 15 minutes fire with.
Only firefighters or welltrained people can act to contain the disaster. For iec 60322 is test on electric cable under fire conditions. Pdf one minute after a fire ignites, it is generally said that only one water glass is needed to extinguish it. Comparatively speaking, the firep erformance requirement for bs 6387 is more demanding. The iec and the bs adopted two different standards, namely the iec 60331 and bs 6387. Iec flame and fire standards the iec flame resistance and fire propagation tests are often confused with one another on the basis of their very similar designations. All bsi british standards available online in electronic and print formats. Contact our technical team to discuss your specific project or.
Cei 203621 iec 6033121 electrical cables up to 0,61 kv cei 203623 iec 6033123 data cables cei 203625 iec 6033125 fibre optic cables fire resistance this test is carried out to verify circuit integrity during a fire. For example, a cable meeting the requirements in terms of their ability to maintain circuit integrity for 3 hours at 950 o c and also for 3 hours at 650 o c when exposed to fire and water would be referred to as cwx other tests covered under bs6387 include voltage tests on completed cables, tests for bending characteristics, tests for resistance to impact at ambient temperature, and tests. This test is similar to the iec 6033111 associated to part 21, except that the fire exposition is 3 hours at 400v plus 24 hours in voltage conditions without fire. Method of test for gases evolved during combustion of electric cables. Circuit insulation integrity in accordance with iec 60331 iec 60331 specifies tests for electric cable for circuit integrity under fire conditions. Category f30 as per bs 7846 resistant to fire with direct mechanical impact and water jet assessed in combination when tested in accordance with bs 8491 for 30 minute. Comparatively speaking, the fire performance requirement for bs 6387 is more demanding. Fire tests are according to iec 603311 or iec 603312 applicable to the appropriate diameter of cable under test, with a. Bs en 603322 iec 603322, cei 20352, for small diameter cables fire propagation test on bunched cables.
Cables are used where the applications require circuit integrity during a. This was the aim of an international project group which had been working on a task named radical restructuring and revision of iec 60439 series since 1998. We use the term fire resistant to indicate a cable that. Iec 60331, cei 2036 nf c 32070 cr1 fire resistance fire resistance this test is carried out to verify circuit integrity even during a fire. As a leading supplier of fire performance cable, we have vast experience of designing and supplying cables manufactured in accordance with british, european and international standards. Differences between flame retardant and fire resistant cables. A sample of cable is held on a flame at about 750c. In january 2009 the iec 61439, the new standard for lowvoltage switchgear and controlgear assemblies, was published. Iec fire resistance testing fire resistant cables are designed for maintaining circuit integrity during a fire. Increasingly popular with system integrators for bms applications, the cables can be terminated using traditional lan insulation displacement connectors idc making them ideal for use in horizontal backbone wiring systems in offices and public buildings. Fire resistant electrical cables micc ltd specialists in mineral. Circuit integrity firetesting under fire technology. The reduction in light transparency is measured in a standard chamber.
Fire resistance test according to iec 603311 standard. Resistance to fire with water as prescribed in bs 6387 protocol w the cable in quesion is mounted horizontally into a chamber, consructed of zintec, with up to 5 ring clamps. Indivudial pair screening will provide excellent electromagnetic protection against outer environment. Cables have to be properly designed, manufactured and also tested. Fire resistant cables gas emission bs en 607541 iec 607541, cei 203721 bs en 607542 iec 607542, cei 203722 hcl emission each non metallic material of the cable 1. Pdf fire resistance and safety in case of fire researchgate. Iec 60331 and bs 6387 categories of cable lowsmoke halogenfree vs. Circuit integrity firetesting under fire technology condiions. Comparitively speaking, the fire performance requirement for bs 6387 is more demanding. The most relevant test standards for cables manufacturers are.