A complete catalogue reference number will typically include the following components. This standard details the following tests to categorise cables according to their fire withstand capabilities. Design b shown below is a singlecore type with two coldleads, one for each end. Meggitt safety systems flex assemblies are produced for extremely low vswr and maximum mechanical integrity. Ultras cables are designed to transmit very small pulse or dc signals through regions of. Mineral insulated cables are designed for hightemperature applications and used wherever there are particularly strict requirements with regard to mechanical, chemical and electrical stability. Xmi mineral insulated heating cables can be supplied with type x quick connectors in the four basic design configurations shown below. Copper sheath cables are covered with an extruded highdensity polyethylene hdpe jacket that protects the. Pyrotenax mi wiring cables are lpcb approved to bs 84342, bs 58391 clause 26.
Surface snow melting mi installation and operation manual. Flexible yet secure, magnacables are becoming the new standard of wiring in hazardous locations. Mineral insulated technology uses only inorganic materials such as copper and magnesium oxide, which offers a unique combination of dependability and performance. Since the units consist of a series resistor, virtually any wattagevoltagelength cable configuration can be produced within the cable s physical operating limits. Mi cable consists of copper wires inside a copper, stainless steel, or inconel sheath. Contents page 1 scope 5 2 object 5 3 voltage rating 5 3. Magnacable mineral insulated cable advanced telemetrics. The triaxial cables achieve good high frequency screening and are suitable for a wide range of signal applications. A mineral insulated cable mi cable is a specialized type of cable used in high temperatures or harsh environmental conditions because it has low flammability, even when operating at high temperatures. Organic construction also means mi cable is an environmentallyfriendly option and does not burn, produce smoke or contribute to ongoing fire emergencies. Mineral insulated copperclad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder. High wattage per foot of cable limited per foot for hazardous areas. The triaxial cables achieve good high frequency screening and are suitable for a wide range of. Our client base extends both uk and overseas and our cables are found in many prestigious installations where system survival is vital during and after a fire.
The mineral insulated cables are also suitable for outdoor applications or for installation under concrete if properly protected against eddy current. The company has over the years gained experience concerning all aspects of mi cable and its sales team have supervised and given expert advice on mi installations worldwide, installations such as. These conductors are usually welded to the legs of a thin film or ceramic wire wound resistance sensor. Flexible yet secure, magnacables are quickly becoming the new standard of wiring in hazardous locations. Mineral insulated heating cables becomes the best choice when. Mineral insulated, metalsheathed type mi cable is an ultrareliable, extremely robust wire. It is suitable for the most demanding applications that include instrumentation and power in hazardous locations, outdoor use for services, feeders and branch circuits, nuclear reactors, and extremely high ambient temperatures.
Fire resistant building materials nfpa standards nvent. Advanced telemetrics the apex of production automation. Materials and the form in which they are used comprise normally. Mineralinsulated copperclad cable wikipedia, mineralinsulated copperclad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium mineral insulated cable mi cable. Design d shown below is a dualcore type with one coldlead on the end, and an endcap on the other. Design configurations a and d are supplied from the factory with one or more quick connectors assembled to the cold lead.
Chromalox mi mineral insulated heating cables provide rugged and reliable heat tracing for a variety of demanding applications. The company has over the years gained experience concerning all aspects of mi cable and its sales team have supervised and given expert advice on mi installations worldwide. Cables pyrotenax mi wiring cables are manufactured, tested in accordance with, and lpcb approved to, bs en 607021. Scope the following information refers to the installation methods, construction, maintenance requirements and recommendations for mineral insulated electric heat tracing cables, when fitted to pipelines and associated equipment. Other fire resistant cables in our fire performance range include mineral insulated copper cables micc, designed to offer the ultimate fire resistance and good protection against electromagnetic interference. Pyro mi enhanced grade mineral insulated wiring cables fire performance bs 6387. Atcom catalog mineral insulated cables design types.
Copper sheath cables are covered with an extruded highdensity polyethylene hdpe jacket that protects the copper sheath from corrosive elements that. Mineral insulated cables see certificate for details standards see appendix for details en 607021. Mineral insulated copper heating cables hdpe jacket for corrosive or embedded applications seamless copper sheath mgo insulation heating conductor. Mineral insulated cables are available with either one or two conductors. Miqtm mineral insulated heating cable miq catalogue reference number. Of cores nominal cross ectional area mm2 singlephase ac or dc amps threephase ac amps 4 6 47 4 10 64 4 16 85 4 25 110 7 1.
Electrical performance is mode free through 18 ghz or 26. Such specialty cables are also used wherever theres a potential for fire and the need to keep critical circuits alive. Pyrotenax mineral insulated mi heating cables are comprised of one or two conductors surrounded by magnesium oxide insulation and a solid copper or alloy 825 sheath. Typical mi cables the mineral insulated mi cable is the safest choice for power and heating prevention and protection from fire in industrial and civil applications as well as for electrical heat tracing industrial and building processes. Mineralinsulated, metalsheathed type mi cable is an ultrareliable, extremely robust wire. Miq high performance mineral insulated heating cables are used extensively for high temperature maintenance, high temperature exposure andor high watt density applications which exceed the limitations of thermoplastic insulated cables. Pyrotenax mi wiring cables have also been witnessed tested, by lloyds. Single core mineral insulated heating conductor is made up of a live inner wire filament which is insulated from the metal sheath with magnesium oxide as insulator. This standard details the following tests to categorise cables according to their. Ultras cables are designed to transmit very small pulse or dc signals through regions of high temperature, radiation and electromagnetic noise found within the core of a nuclear reactor.
Mineralinsulated, metalsheathed type mi cable where to. Mineral insulated heating cables single core thermoexpert. Characteristics of mineral insulated heating systems match exactly with over described speci. The high nickel alloy sheath, magnesium oxide dielectric insulation and resistance wire construction allow the tracing of equipment up to 1100f maintenance temperatures and excellent resistance to many corrosive environments. It resists oxidation and enables precise measurement. Standard mi cables are inadequate in maintaining immunity and low losses. Wrexham mineral cables is the only uk based mineral insulated cable manufacturer. Test for unprotected small cables for use in emergency circuits bs en 50200 with the addition of water spray. Mi cables can provide stable temperature measurement readings and are often used for high temperatures up to 1250 c and even higher in hazardous environments. Mineral insulated cable advantages of the mi cable. And in some specific cases, it is extremely cheaper and longer lasting operation of selfregulating heating tapes.
Power output per unit length of the cable therefore varies with the applied voltage and the resistance of the conductor. The metallic sheath acts as a protective screen, and therefore mineral insulated cables can withstand extremely high mechanical stress such as crushing and curvature with a. Triaxial cable tempsens article tempsens instruments pvt. Endorsingiec1034 iec331, fire resisting characteristics of electric cables. Short description aisi usa bs gb afnor fr uni it 1.
The mineral insulated cable company are highly trained specialists in a highly specialised world. Mineral insulated cables ultra electronics, energy. Ultras cables are designed to transmit very small pulse or dc signals through regions of high temperature, radiation and electromagnetic. Mineral insulated cables mineral insulated mi cables are typically used within the reactor core. It guarantees data transmission and security of power and control circuits by exceeding the requirements of bs85191 providing circuit integrity to 950c. Mineral insulated cable is a series resistance heater that generates heat by passing current through the electrical conductor.
Mineral insulated heating cables are the simplest and most effective solution to the many heating problems that arise in industry and construction, and so on. Fire resistant cables fire performance, fire survival. Aei cables mineral insulated cable mic heavy duty bare. On account of their good flexibility, the use of mineral insulated cables are preferred in areas where mounting.
The type d and e is only suitable for the twocore mineral insulated heating cable. The copper sheath and conductors, insulated with magnesium oxide ensure that the cable is able to withstand the effects of fire and is fully usable afterwards. Mineralinsulated, metalsheathed type mi cable where. Mineral insulated cable assembly mi cable co 73343114.
It guarantees data transmission and security of power and control circuits by exceeding the requirements of. Mineralinsulated copperclad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder. 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. In particular, the diameter and the composition of the inner core influence the resistance of the cabling and therefore the heating. Polymer insulated cables there is a multitude of other fireresistive, circuitintegrity cables especially manufactured for specific applications that are not affected by the ul and ulc suspension cited above. It is suitable for the most demanding applications that include instrumentation and power in hazardous locations, outdoor use for services, feeders and branch circuits, nuclear. The mi cable system provides a simple solution to many difficult wiring problems and makes for a dependable. Metal sheathed mineral insulated mi cable is one of the most durable heating cables available.
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. Mineral insulated mi cables are typically used within the reactor core. Mineral insulated cable delivers ultimate fire performance. Mineral insulated cable is manufactured from completely inorganic material. 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. Applications micc, mineral insulated cable company are highly trained specialists in a highly specialised world. Mineral insulated cable and cable assemblies are extremely reliable as power and control cables in hospitals, hotels, high rise buildings for emergency generators, fire pumps, smoke and vent exhaust fans, communication circuits, multiplex alarm systems and instrumentation. Configurations b and e can be supplied with a combination of connectors or with. The following installation procedures are suggested guidelines for the installation of a thermon miq mineral insulated heat tracing system. Fire resistant cables fire performance, fire survival cable. Harsh conditions our product line of aeropak mineral insulated cables can be used under the most severe conditions that can destroy other types of thermocouple cable. For a full copy of our current price list, please contact a member of our customer services team on 0845 0540460. The resistance configurations available can provide tracing for pipes up to 1 mile 1.
With the use of magnacable mineral insulated cable, you not only eliminate the safety concerns of conduit and wire installations, but. Wcnwcc is the leading organisation representing the business community across the whole of west cheshire and north wales. Advanced telemetrics the apex of production automation systems. Mineral insulated triaxial cable is a coaxial cable with a supplementary sheath by which the cable is insulated from ground and suitable for a wide range of signal applications. These high temperature cables are manufactured without any plastic insulation and provide circuit integrity up to 950 o c. 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. Since the bending process of mineral insulated rtd cables is easy. The nonheating section of the unit is sealed and fitted with a high pressure, liquidtight m20, m25 or m32 brass gland 3 for connection into the supply junction box. The pyro mi cable system is the natural choice for domestic, commercial and industrial applications.
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