Petrochemical
Fire and Performance Wiring > Petrochemical
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© 1996-2007 Tyco Thermal Controls LLC.
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MOV
Conventional wiring methods survive for only a matter of minutes at temperatures well below those likely to be encountered in a hydrocarbon flash fire. To assure that the integrity of power and control wiring to emergency block valves is maintained during a fire, special precautions must be taken.
HAZARDOUS
Hazardous conditions can exist in places where volatile fuels are handled and pumped routinely. MI cable fittings are designed to meet the explosion and flame path requirements, and pre-terminated MI cable is used in these locations, particularly where they can replace bulky and rigid wire in conduit and conduit seal-offs.
Alternatively,
VITALink MC/NCC can also be used and is rated for hazardous area use with explosion proof glands and seals.
HIGH TEMPERATURE
Conventional wiring cables are generally limited to 90°C (195°F) operating temperatures. Environments where temperatures up to 670°C (1238°F) are encountered require special cabling.
CORROSIVE
Tyco Thermal Controls manufactures Industrial wiring cables with copper, jacketed copper and Alloy 825 sheath suitable for the most demanding industrial environments.
POWER FEEDERS
The space savings achievable using MI or
VITALink MC/NCC versus conduit and wire are huge - up to 80% space saving. In addition, the ease with which they can be pulled into difficult runs with tight corners gives them an overwhelming advantage
The ravages of small fires can rapidly escalate into catastrophic proportions when a refinery shutdown system does not function properly. Conventional wiring methods can
fail in less than 3 minutes at 425°F (250°C), which is well below the temperature of hydrocarbon flash fires (2012°F / 1100°C). In the event of a fire, Pyrotenax® mineral
insulated and VITALink polymer insulated wiring cable can withstand temperatures up to 2200°F (1204°C) to ensure the integrity of all power and control wiring to motor-operated valves and emergency equipment.
