May 02, 2018 we bend a nvent raychem pyrotenax mi brazed heating cable to show its mechanical strength. Controls for the termination of pyrotenax mi heating cables and units. 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. Capable of carrying current at temperatures in excess of. 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. For additional installation information contact nvent. This howto guide will demonstrate you the proper termination procedure. Mineralinsulated copperclad cable is a variety of electrical cable made from copper. Pyrotenax mi the ultimate fire survival cable system from. The latest addition to the pyrotenax range is the new range of lsf and halogen free cable clips and saddles. Mi cables are capable of achieving a fireresistance rating, thus remaining operable while exposed to fire.
Raychem pyrotenax mi mineral insulated brazed torsion test. Mi cable is fireproof, waterproof and radiation resistant and has a high resistance to. Mineralinsulated copperclad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder. Owned and operated by the exmanagement team of bicc pyrotenax. 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. Guide to the specification and installation of pyro mi wiring.
Guide to the specification and installation of pyro mi. The solid construction of mi cable makes it suitable for. 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. 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.
Pyro mi benefits pyro mi survives the fire test requirements for enhanced grade cables as defined in bs 5839. 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. 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. The fire resistant wire saves up to 80% of space, compared to conventional conduit and wire systems. 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. A complete termination consists of seal or insulator plus a gland, if required. C, mi cable has unsurpassed fire survival properties. Pyrotenax mi wiring cables are lpcb approved to bs 84342, bs 58391 clause 26. Peace of mind from the third party lpcb approval for categories c, w and z in bs 6387. This construcvtion is completely nonflammable and destruction of the cable by fire only occurs in the extreme situation when the. Mineral insulated cable is without question the ultimate fire survival electrical. See appendix a for detailed test procedure and ir test criteria.
Mineral insulated cable is totally inorganic and silicone free in construction. System 1850 mi cable pulled to splice location and without bends or outer polymer jacket for 4 ft 1. System 1850 2hour firerated, mineral insulated copper. Pyrotenax mi cable expansion and vibration h576 for. Storage to protect cables from physical damage and the environment.
The rugged construction of pyrotenax mi industrial wiring cable makes it the perfect solution for all industrial applications, no matter how extreme. The national electrical code nec allows full free air ampacity for unjacketed single conductor mi cables configured according to fig. Pyrotenax mi cable expansion and vibration h576 for details. Single conductor cable is subject to 90c free air ampacity rating. Wiring cables for fire and performance wiring applications light duty cables pdf. In addition to its identification purposes, the catalog number provides information regarding the heating cable length, power output, and operating voltage. 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. In addition to mechanical strength and fire safety. Once ir readings are satisfactory, immediately complete step 7 to seal the end of the mi cable. Accessories for the termination of mi heating units. 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. Mineral insulated technology mi cable nvent pyrotenax.
We bend a nvent raychem pyrotenax mi brazed heating cable to show its mechanical strength. 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. For compliance with nec nfpa 70, 2014 edition article 728. In 1937 a british company pyrotenax, having purchased patent rights to the product. 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. With a hacksaw, cut the two ends side a and side b of the mi cable square and file the ends smooth. 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. Pyrotenaxdsh 57442system1850en1805 2 system 1850 mi cable terminations are typically field installed. Read about the pyrotenax pyro mineral insulated cable from nvent. Cables for life micc ltd specialists in mineral insulated cable, fire. Pyrotenax fire survival cable enhanced grade cable.
For additional information, contact your nvent representative or call 800 5456258. In addition to its identification purposes, the catalog number provides information regarding the heating. Pyrotenax mi wiring cables have also been witnessed. May 14, 2018 nvent pyrotenax single conductor quickterm termination kit.
Surface snow melting mi installation and operation manual. Factory terminated cable sets are also available in a range of sizes and lengths. Raychem pyrotenax mi mineral insulated brazed torsion. Check ir between conductors and sheath, and between each pair of conductors. Pyrotenax fire survival cable enhanced grade cable system. Mi cable can be used for indoor and outdoor applications in industrial installations. 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. It should be read in conjunction with our general product literature technical databook doc389, available at. Mineralinsulated mi cable is a specially constructed cable that can survive a fire. Litespeed electric chose mineral insulated mi 2 hour fire rated cable to protect this buildings emergency electrical equipment in new york city. 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. All pyrotenax terminations meet the requirements of bs en 607022. Magnacable mineral insulated cable advanced telemetrics.
Field installed firerated splice kit nvent thermal. However, certain storage and handling guidelines should be followed to minimize the possibility of damage to the cable. 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. Refer to the mi cable commercial wiring installation manual, h57864 for complete details on supporting and securing the field installed fire rated splice. Pyrotenax single conductor quickterm termination youtube. For more details, please contact tyco thermal controls. 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. Pyro mi enhanced grade mi wiring cable system hurley wire. Fire rated wiring system caddetails free cad drawings. Mi cables pyrotenax mi wiring cables are manufactured, tested in accordance with, and lpcb approved to, bs en 607021. If the calculated voltage drop exceeds the specified limits, a larger cable size must be chosen. Mi cable can be bundled with a variety of other cables, giving them a free air rating.
Amperage is a measure of the electrical current flowing through a circuit. Low ir results indicate that moisture is present in the end of the mi cable and must be removed before finishing the termination. The other cable end must also be free of grounds and shorts and must be sealed. Reyrolle and co owned 10 percent of pyrotenax ltd 1954 company made public. See how the entire mi system was installed in this case study.
For details on terminated cable sets, contact nvent. When installed in accordance with pentair thermal management installation procedures, the result is a ululc 2hour fireresistive system. 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. Pyrotenax mi cable industrial wiring installation manual. Pyrotenax system 1850 mi cable is a ul classified ulc. Fire rated wiring system caddetails free cad drawings, 3d. Pyrotenax mi wiring cables have also been witnessed tested, by lloyds. Pyrotenax mi the ultimate fire survival cable system from ksm. Fire resistant building materials nfpa standards nvent. Pyrotenax mi wiring cables are manufactured, tested and lpcb approved to bs en 607021. Ensure that the heating cable voltage and temperature rating is suitable for the application.
Cables pyrotenax mi wiring cables are manufactured, tested and lpcb approved to bs en 607021. 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. Page 1 installation, maintenance and operation manual mineral insulated mi series heating systems thermal management enpyrotenaxmiimdoc586 r4 page 2. English article mi cables entering junction box at e. The sizedup tail is required when using the mi cable for its full free air rated ampacity. Pyrotenax commercial mi wiring cable installation manual for. Pyrotenax dsh 57442system1850en1805 2 system 1850 mi cable terminations are typically field installed. No calorific values and halogen free will generate no toxic or irritant. The ultimate fire survival cable system guide to the specification and installation of pyro mi wiring cables 02116a pyrotenax imcde0937 mi dd 1 5122018 5. Pyrotenax pyro mineral insulated cable fire performance wiring. We have 1 raychem pyrotenax alloy 825 manual available for free pdf download. 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. 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. Graph 1 sheath temperature rise for 600 v mi single conductor cables in free. The ultimate fire survival cable system guide to the specification and installation of pyro mi wiring cables dd 1 5122018 5. 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. Other benefits of mineral insulated copper cable include. Code, do not require derating and can be installed using the free air ratings of.