Health & Safety
Bart Goeman: Novec 1230 fluid itself has the largest safety margin of any commercial agent.
Te design (use) concentration is far below its NOAEL or ‘no-observed- adverse-effect-level’ which is an important part of the non-clinical risk assessment.
In other words, the chances that anybody is exposed to a value close to or over the NOAEL does not exist if the system is designed and installed according to the standard. Other agents currently used could
exceed their respective NOAELs much more frequently as their safety margins are significantly smaller.
IOGE: Sensitive equipment can be easily damaged or destroyed by fire. How quickly can Novec 1230 suppress a fire?
Bart Goeman: A system using Novec 1230 fluid designed according international standards must discharge within 10 seconds and extinguish any fire in that enclosure within 30 seconds.
IOGE: 3M offers a 20-year ‘Blue Sky Warranty’ on the Novec 1230 Fire Protection Fluid. What are the main benefits of this guarantee to users?
Bart Goeman: Te 3M Blue Sky Warranty offers peace of mind to our global customers including those regions directly impacted the by the F-gas Regulation. Specifically, the Blue Sky Warranty offers: 3M warrants, for a period of 20 years after original installation and subject to noted requirements, that 3M Novec 1230 Fire Protection Fluid, installed in an approved fire suppression system, will not be restricted for use in fire protection due to its Ozone Depletion Potential (ODP) or Global Warming Potential (GWP) and is not targeted for phase-down by the Montreal Protocol, nor subject to the European F-gas regulations targeting the phase-down of production and import of HFCs into Europe; and will not be affected by US. EPA SNAP regulations which would render it either unacceptable or acceptable subject to narrow use limits. l
A
ll over the world, there are existing or
impending restrictions on HFCs. While the F-gas Regulation is specific to the EU, it is an indicator of increasing concerns around HFCs. In the US, EPA has now proposed to de-list HFCs as acceptable substitutes to ozone depleting substances in some sectors.
Electric industrial heaters for use in explosion hazard areas M
any branches of the chemical and petro-chemical industry
are demanding electric heaters with explosion hazard area approval. Through advanced development of its products for use in explosion hazard areas, Hillesheim has obtained certifications for its own prototype tests. These certifications ease the burden for customers because it is no longer necessary to have on-site approval inspections performed by appraisers. These costly and time-consuming tests at the customer site can now be waived in the future. Hillesheim manufactures explosion-proof
heating hoses for media that must be held at temperature (up to 200°C) while being transported from A to B.
Explosion hazard areas are divided into
zones, the equipment in device groups and device categories. For a certified device, the marking on the type plate makes it identifiable for which zone the explosion protected equipment may be used. Devices are divided in Groups into I and II,
whereby Group I involves mining ‘underground’ and 74
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classifications for gas explosion protection (G = gas); equipment with 1G is suitable for zone 0, 1 and 2, equipment with 2G for zone 1 and 2 and equipment with 3G for zone 2. The categories 1D, 2D and 3 D are classifications for dust explosion protection (D = dust); equipment with 1D is suitable for zone 20, 21 and 22, equipment with 2D for zone 21 and 22 equipment with 3D for zone 22.
Group II involves gas and dust explosion protection in all other applications. Explosion hazard areas are divided into six
zones, whereby the division is determined by the probability of how often and long it is expected that a hazardous explosive atmosphere occurs. Combustible gases, mists, vapours and combustible dusts are distinguished. Depending on hose type, these hoses can be
used in temperature classes T1 to T6, for gas zones 1 and 2 and for dust zone 21/22. The device category defines which equipment
may be used in which zone. In turn, there are six device categories. Categories 1G, 2G and 3G are
The ignition protection type does not represent
a quality feature, but is a constructive solution to achieve explosion protection for the equipment. Other products, such as heater bands and
heating plates, are also deliverable for use in explosion hazard areas.
Hillesheim is hoping these latest developments will open up new applications for the analysis of smoke and emissions as well as in general plant engineering for explosion hazard areas. l
For more information ✔ at
www.engineerlive.com/iog For more information visit
www.hillesheim-gmbh.com
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