41 1 https://www.haspecialists.com.au/media/website_posts/41/Case-5-Four-sided-shield-around-the-gas-bottles-at-30-deg-LEL-50-Velocity.png page https://www.haspecialists.com.au/blog/cfd-modelling/ 2020-11-09 07:43:00 50 1 https://www.haspecialists.com.au/media/website_posts/50/index.jpg page https://www.haspecialists.com.au/blog/hydrogen-an-electrical-perspective/ 2020-11-01 14:00:00 46 1 colourless, odourless and tasteless and not to mention highly flammable]]> https://www.haspecialists.com.au/media/website_posts/46/images.jpg page https://www.haspecialists.com.au/blog/hydrogen-an-unodourised-gas/ 2020-10-21 05:48:00 28 1 https://www.haspecialists.com.au/media/website_posts/28/Capture.jpg page https://www.haspecialists.com.au/blog/dust-aint-gases/ 2020-10-05 19:58:00 44 1 https://www.haspecialists.com.au/media/website_posts/44/Ex-t.png page https://www.haspecialists.com.au/blog/typical-problems-encounted-during-ex-t-td-and-dip-inspections/ 2020-10-04 05:43:00 45 1 Ex m - Parts that could ignite an explosive atmosphere by means of sparks or heat are potted so as to prevent ignition of the explosive atmosphere. This is achieved by encapsulating the components in a compound resistant to physical - especially electrical, thermal and mechanical - and chemical influences.
Ex q - By filling the enclosure with a finely grained powder, an arc within the enclosure is unable, with correct use, to ignite the explosive atmosphere outside. There must be no risk of ignition by flames, nor by increased temperatures at the surface of the enclosure.]]> https://www.haspecialists.com.au/media/website_posts/45/Ex-m-and-q.png page https://www.haspecialists.com.au/blog/typical-problems-encounted-during-ex-m-and-ex-q-inspection/ 2020-09-29 05:44:00 39 1 EPL is the acronym for Equipment Protection Level. These are defined in AS/NZS 60079.26:2015 (based on IEC 60079.26 Ed. 3.0 (2014). In essence, an EPL rating indicates the number of protection levels that exist within a device or assembly of devices. ]]> https://www.haspecialists.com.au/media/website_posts/39/Capture.jpg page https://www.haspecialists.com.au/blog/what-are-epls/ 2020-09-28 05:28:00 48 1 https://www.haspecialists.com.au/media/website_posts/48/Image.jpg page https://www.haspecialists.com.au/blog/like-for-like-type-b-gas-appliance/ 2020-09-16 05:55:00 47 1 like for like”, this usually occurs when equipment is disconnected or removed from a hazardous area and its being reconnected or energised again.]]> https://www.haspecialists.com.au/media/website_posts/47/index.jpg page https://www.haspecialists.com.au/blog/like-for-like-hazardous-areas-equipment/ 2020-09-16 05:54:00 43 1 https://www.haspecialists.com.au/media/website_posts/43/Ex-o.png page https://www.haspecialists.com.au/blog/typical-problems-encounted-during-ex-o-inspection/ 2020-09-16 05:41:00 42 1 Hazardous Area, in terms of flammable gases and vapours, is an area where the gas or vapour exists, at a level that is within the Flammable Range.

The best way to manage a Hazardous Area is to not create one in the first place. However, in the real world, this is rarely possible.]]> https://www.haspecialists.com.au/media/website_posts/42/images.jpg page https://www.haspecialists.com.au/blog/basics-of-explosion-protection-techniques/ 2020-09-06 23:42:00 37 1 AS/NZS 60079.25:2011 Annex B describes the analysis and use of parallel intrinsically safe circuits and is entitled: “Assessment of Circuits with more than One Source of Power”. This analysis is only applicable when the power sources considered use a linear resistive limited output. It is not applicable to power sources using other forms of current limitation.]]> https://www.haspecialists.com.au/media/website_posts/37/circuit.jpg page https://www.haspecialists.com.au/blog/is-circuits-parallel-and-series/ 2020-08-16 02:46:00 36 1 Entity Concept System (also called an Uncertified System – as the components of the system were not certified as a system or installation, with the compliance of the system relying on favourable Entity Parameter calculations).]]> https://www.haspecialists.com.au/media/website_posts/36/Capture.jpg page https://www.haspecialists.com.au/blog/is-circuits-loop-parameters/ 2020-08-05 02:39:00 33 1 https://www.haspecialists.com.au/media/website_posts/33/Capture.jpg page https://www.haspecialists.com.au/blog/iso-9001-certified/ 2020-07-14 01:32:00 27 4 https://www.haspecialists.com.au/media/website_posts/27/7315-12061305.jpg page https://www.haspecialists.com.au/blog/fitness-for-purpose-study-changes-to-unit-verified-ex-e-enclosure/ 2020-07-12 19:48:00 40 4 https://www.haspecialists.com.au/media/website_posts/40/IMG_20180726_145341.jpg page https://www.haspecialists.com.au/blog/fitness-for-purpose-study-component-certified-ex-d-enclosure/ 2020-07-03 06:20:00 35 1

Lower Explosion Limit  and Upper Explosion Limit

Auto-Ignition Temperatures and Temperature Classifications

Minimum Ignition Energy (MIE)

Limiting Oxygen Concentration (LOC)

Critical Parameters

Mists

]]> https://www.haspecialists.com.au/media/website_posts/35/Capture.jpg page https://www.haspecialists.com.au/blog/flammable-gas-vapour-the-essentials/ 2020-06-16 02:17:00 34 1 https://www.haspecialists.com.au/media/website_posts/34/Bulk-Intake-tunnel.jpg page https://www.haspecialists.com.au/blog/combustible-dust-the-essentials/ 2020-06-03 02:02:00 38 1 https://www.haspecialists.com.au/media/website_posts/38/Capture.jpg page https://www.haspecialists.com.au/blog/ambient-temperature-and-temperature-class/ 2020-05-29 04:33:00 31 1 https://www.haspecialists.com.au/media/website_posts/31/adaptors.png page https://www.haspecialists.com.au/blog/when-to-use-thread-adaptors/ 2020-05-18 06:52:00 30 4 Compound or Barrier Glands are the same thing. These are used to prevent the migration of flammable gases or vapours from one enclosure to the cable or one enclosure to another.]]> https://www.haspecialists.com.au/media/website_posts/30/glands.png page https://www.haspecialists.com.au/blog/when-to-use-a-compound-barrier-gland/ 2020-04-20 06:23:00 29 1
In a practical sense, these are certified enclosures which are EMPTY of components. In order to use a Component (“U” certified) enclosure with specific contents, there are several options that can be taken.]]> https://www.haspecialists.com.au/media/website_posts/29/IMG_20180726_145341.jpg page https://www.haspecialists.com.au/blog/definition-of-a-component-enclosure/ 2020-03-16 05:53:00 20 4 “Component Certification” and “Unit Verification”.]]> https://www.haspecialists.com.au/media/website_posts/20/Label.png page https://www.haspecialists.com.au/blog/interperting-north-american-marking/ 2020-02-03 02:07:00 32 4 https://www.haspecialists.com.au/media/website_posts/32/DJI_0126.jpg page https://www.haspecialists.com.au/blog/huisman-loc-400/ 2020-01-21 06:38:00 19 4 https://www.haspecialists.com.au/media/website_posts/19/Label-1.jpg page https://www.haspecialists.com.au/blog/what-can-be-a-cad-and-what-cannot/ 2019-11-27 01:44:00