In addition to its identification purposes, the catalog number provides information regarding the heating. Peace of mind from the third party lpcb approval for categories c, w and z in bs 6387. It is well known as pyro cable or fire rated cable. Flexible yet secure, magnacables are quickly becoming the new standard of wiring in hazardous locations. This howto guide will demonstrate you the proper termination procedure. English article mi cables entering junction box at e. Company profile, information and contact info for pyrotenax cables ltd 4332 97 st nw, edmonton, ab from profile canada, canadas most trusted business database for lists and data. Fire rated wiring system caddetails free cad drawings.
The national electrical code nec allows full free air ampacity for unjacketed single conductor mi cables configured according to fig. Once ir readings are satisfactory, immediately complete step 7 to seal the end of the mi cable. Factory terminated cable sets are also available in a range of sizes and lengths. Pyrotenax mi cable expansion and vibration h576 for details.
However, certain storage and handling guidelines should be followed to minimize the possibility of damage to the cable. Pyrotenax mi the ultimate fire survival cable system from. Low ir results indicate that moisture is present in the end of the mi cable and must be removed before finishing the termination. Storage to protect cables from physical damage and the environment. Pyrotenax single conductor quickterm termination youtube.
Place the three fireprotection kit pieces two cable sleeves and barrel sleeve onto the cable as shown, followed by the gland connectors, followed by the copper barrel. The latest addition to the pyrotenax range is the new range of lsf and halogen free cable clips and saddles. Pyrotenax commercial mi wiring cable installation manual for. Pyrotenax system 1850 mineral insulated, coppersheathed wiring cable is an ideal alternative for retrofitting feeders in buildings and for ease of installation in tight spaces and difficult runs. Pyrotenax mi wiring cables have also been witnessed. The following recommendations regarding the installation of single conductor pyrotenax mi cables are based on manufacturers test data and on many years of inservice experience.
When installed in accordance with pentair thermal management installation procedures, the result is a ululc 2hour fireresistive system. Accessories for the termination of mi heating units. Fire rated wiring system caddetails free cad drawings, 3d. Mineralinsulated copperclad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder. Raychem pyrotenax mi mineral insulated brazed torsion. Pyrotenax pyro mineral insulated cable fire performance wiring. Pyrotenax mi cable expansion and vibration h576 for. Guide to the specification and installation of pyro mi. Table of contents general information heating cable selection and storage heating cable installation components selection and installation temperature control and limitation thermal insulation and marking power supply and electrical.
Mi cable is fireproof, waterproof and radiation resistant and has a high resistance to. Pyrotenaxdsh 57442system1850en1805 2 system 1850 mi cable terminations are typically field installed. Mi cable can be used for indoor and outdoor applications in industrial installations. Mi cable has been approved by electrical codes for years as a fire resistive cable and offer products in a variety of sizes and constructions. C, mi cable has unsurpassed fire survival properties. Cables for life micc ltd specialists in mineral insulated cable, fire. For additional information, contact your nvent representative or call 800 5456258. Raychem pyrotenax mi mineral insulated brazed torsion test. Pyrotenax mi cable industrial wiring installation manual. Pyrotenax system 1850 mi cable is a ul classified ulc. System 1850 mi cable pulled to splice location and without bends or outer polymer jacket for 4 ft 1.
Vitalink metalclad mc cables offer a 2hour resistance rating listed to ul 2196 contained in an armor that not only serves as mechanical protection, but also as a ground path. Litespeed electric chose mineral insulated mi 2 hour fire rated cable to protect this buildings emergency electrical equipment in new york city. In addition to its identification purposes, the catalog number provides information regarding the heating cable length, power output, and operating voltage. It is extensively used in petrochemical plants where the integrity of power and control wiring to emergency block valves and emergency equipment must be maintained during a hydrocarbon flash fire. In 1937 a british company pyrotenax, having purchased patent rights to the product. If the calculated voltage drop exceeds the specified limits, a larger cable size must be chosen. Single conductor cable is subject to 90c free air ampacity rating.
Pyrotenax compression ring type glands for use with all pyro mi wiring cables and heating cable cold leads safe use and fitting instructions pyro mi fire survival cable the limits on diameters are shown in the table below. This construcvtion is completely nonflammable and destruction of the cable by fire only occurs in the extreme situation when the. Guide to the specification and installation of pyro mi wiring. Therma building so utions enpyrotenaxmiterminationkitsdsh58421 0116 1 8 pyrotenax product overview the pyropak and quickterm termination kits are used to fieldterminate pyrotenax copper sheathed mi wiring cables. System 1850 2hour firerated, mineral insulated copper. Cables pyrotenax mi wiring cables are manufactured, tested and lpcb approved to bs en 607021. The fire resistant wire saves up to 80% of space, compared to conventional conduit and wire systems. May 02, 2018 we bend a nvent raychem pyrotenax mi brazed heating cable to show its mechanical strength. Reyrolle and co owned 10 percent of pyrotenax ltd 1954 company made public. A special tape is provided to seal the end of the mi cable and a compression connector is used to join the mi cable solid conductor to an equivalent size flexible stranded conductor tail supplied by installer. Controls for the termination of pyrotenax mi heating cables and units. Mineral insulated technology mi cable nvent pyrotenax. The name is often abbreviated to micc or mi cable, and colloquially known as pyro because the original manufacturer and vendor for this product in the uk was a company called pyrotenax.
The solid construction of mi cable makes it suitable for. Mineralinsulated mi cable is a specially constructed cable that can survive a fire. In addition to mechanical strength and fire safety advantages, they are colour matched against pyro mi cables and fixing sizes are easily visible when using them on site. Wiring cables for fire and performance wiring applications light duty cables pdf. Pyrotenax system 1850 mineral insulated firerated cables are ul listed and can withstand temperatures up to 1850 f 1010 c for two hours, ensuring critical equipment and processes continue to operate in the event of a fire. The ultimate fire survival cable system guide to the specification and installation of pyro mi wiring cables dd 1 5122018 5. Mi cables pyrotenax mi wiring cables are manufactured, tested in accordance with, and lpcb approved to, bs en 607021. The rugged construction of pyrotenax mi industrial wiring cable makes it the perfect solution for all industrial applications, no matter how extreme. Mi cables are capable of achieving a fireresistance rating, thus remaining operable while exposed to fire. See how the entire mi system was installed in this case study.
See appendix a for detailed test procedure and ir test criteria. Fire resistant building materials nfpa standards nvent. A complete termination consists of seal or insulator plus a gland, if required. Pyrotenax fire survival cable enhanced grade cable system. The other cable end must also be free of grounds and shorts and must be sealed. Ensure that the heating cable voltage and temperature rating is suitable for the application. We bend a nvent raychem pyrotenax mi brazed heating cable to show its mechanical strength. Mineral insulated cable is totally inorganic and silicone free in construction. Pyrotenax mi wiring cables are manufactured, tested and lpcb approved to bs en 607021. A special tape is provided to seal the end of the mi cable and a compression connector is used to join the mi cable solid conductor to a larger sizedup flexible stranded conductor tail supplied by installer. For additional installation information contact nvent. Pyrotenax fire survival cable enhanced grade cable. No calorific values and halogen free will generate no toxic or irritant. Graph 1 sheath temperature rise for 600 v mi single conductor cables in free.
Other benefits of mineral insulated copper cable include. Read about the pyrotenax pyro mineral insulated cable from nvent. The process includes terminating the cables, splicing them together using a splice resistant to elevated temperatures, and covering the assembly with a fireprotection kit made of an endothermic matting. It should be read in conjunction with our general product literature technical databook doc389, available at. Historically, fire safety of critical circuits was achieved by running conventional cables behind a heat barrier such as a gypsum board or hollow concrete block. Mineral insulated cable is without question the ultimate fire survival electrical. Field installed firerated splice kit nvent thermal. Surface snow melting mi installation and operation manual. Refer to the mi cable commercial wiring installation manual, h57864 for complete details on supporting and securing the field installed fire rated splice. With the use of magnacable mineral insulated cable, you not only eliminate the safety concerns of conduit and wire installations, but also eliminate the cost of additional material. For more details, please contact tyco thermal controls. All pyrotenax terminations meet the requirements of bs en 607022.
Pyrotenax dsh 57442system1850en1805 2 system 1850 mi cable terminations are typically field installed. Pyro mi benefits pyro mi survives the fire test requirements for enhanced grade cables as defined in bs 5839. Pyrotenax mi wiring cables have also been witnessed tested, by lloyds. Mineralinsulated copperclad cable is a variety of electrical cable made from copper. In addition to mechanical strength and fire safety.
Mi cable can be bundled with a variety of other cables, giving them a free air rating. Capable of carrying current at temperatures in excess of. Page 1 installation, maintenance and operation manual mineral insulated mi series heating systems thermal management enpyrotenaxmiimdoc586 r4 page 2. A termination is required at each end of a length of cable and it should be fitted as soon as the cable end has been prepared ie.
The sizedup tail is required when using the mi cable for its full free air rated ampacity. For compliance with nec nfpa 70, 2014 edition article 728. Magnacable mineral insulated cable advanced telemetrics. Pyrotenax mi the ultimate fire survival cable system from ksm. Pyro mi enhanced grade mi wiring cable system hurley wire. Pyrotenax commercial mi wiring cable installation manual. Check ir between conductors and sheath, and between each pair of conductors. For details on terminated cable sets, contact nvent. We have 1 raychem pyrotenax alloy 825 manual available for free pdf download. System 1850z lowsmoke, zerohalogen jacketed, 2hour firerated, mineral insulated copper sheathed wiring cable so oer ontors anesm oxe nsaton seamess oer seat osmoe zeroaoen aet cable construction product overview nvent pyrotenax system 1850z mi cable is a ul classified ulc listed 2hour fireresistive cable tested to the ul 2196. With a hacksaw, cut the two ends side a and side b of the mi cable square and file the ends smooth. Also attains categories c, w and z of bs 6387 with one single cable sample. Pyrotenax of hebburnontyne, maker of insulated cables, heating elements, thermocouples, etc. Code, do not require derating and can be installed using the free air ratings of.