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[ { "title": "READ | Understanding the latest edition of SANS 10142-1", "nid": "449", "body": "\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cimg alt=\u0022sans\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022e556c362-1533-4bcd-8994-db5f7aaf245b\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/johan-db-newsletter_0.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EREAD | The latest edition of SANS 10142-1 has been published!\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EThe third edition of SANS10142-1 (The wiring of premises Part 1: LV installations) has recently been published. In this article, we\u2019ll outline why the standard was revised, along with the most important changes made.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat is SANS 10142-1? \u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EThis South African standard is referenced for all forms of low voltage electrical installations. The Occupational Health and Safety Act (OHS Act) deems it compulsory for electrical installations to comply with all requirements of the standard.\u003C/p\u003E\n\u003Cp\u003EMoreover, the OHS Act stipulates that a registered professional (Master Installation Electrician, installation electrician or an electrical tester for single phase) issue a Certificate of Compliance for an electrical installation, in line with the requirements of the standard.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat brought about the revision to SANS 10142-1?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EAside from requirements being out of date, the standard was intentionally revised to better align it to international norms. International technologies used in South Africa need to be verified and aligned with our local conditions.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWho should pay particular attention to the changes? \u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EYou should definitely familiarise yourself with the updated standard if you are an electrician, tester, electrical contractor, engineer, technician and the like. Educational bodies and people working in the electrical industry at large should all be well-acquainted with the changes as briefly outlined below.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat are the major changes that have been made?\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003EIntroduction of arc fault detection devices in electrical installations.\u003C/li\u003E\n\u003Cli\u003EIntroduction of an annex to provide information on how to perform neutral earth resistance tests.\u003C/li\u003E\n\u003Cli\u003EModification of resistance of earth continuity conductor requirements.\u003C/li\u003E\n\u003Cli\u003EIntroduction of lightning protection requirements, as well as an informative annex which refers to SANS 10313 and SANS 62305 series.\u003C/li\u003E\n\u003Cli\u003EModification of electrical installation test reports in hazardous locations.\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\nClick \u003Ca href=\u0022https://ecasa.co.za/technical/latest-edition-3-of-the-wiring-code-sans-10142-1-published/\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to read more of the changes implemented\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhere can you get the latest SANS 10142-1 from? \u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EThe latest standard can be purchased from the SABS store.\u003C/p\u003E\n\u003Cp\u003EClick \u003Ca href=\u0022https://store.sabs.co.za/pdfpreview.php?hash=f11e2bbb2a20be3945abb37416d3168464321f17\u0026amp;preview=yes\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to preview the document.\u003C/p\u003E\n\u003Cp\u003E\u00A0\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://ecasa.co.za/technical/latest-edition-3-of-the-wiring-code-sans-10142-1-published/\u0022\u003E\u003Cstrong\u003ESource:\u003C/strong\u003E\u003Cbr /\u003E\necasa.co.za\u003Cbr /\u003E\n\u003Cem\u003E\u0022Latest edition (3) of the wiring code (SANS 10142-1) published\u0022\u003C/em\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003E\u003Cem\u003E\u003Ca href=\u0022https://ecasa.co.za/technical/latest-edition-3-of-the-wiring-code-sans-10142-1-published/\u0022\u003EErika Van Zyl\u003Cbr /\u003E\n14 September 2020\u003C/a\u003E\u003C/em\u003E\u003C/p\u003E\n", "created": "Nov 2020", "terms": "Electrical, Education" }, { "title": "LEARN | Understanding Earth Grounding", "nid": "446", "body": "\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/download/fluke-earth-ground-testing-range.pdf\u0022\u003E\u003Cimg alt=\u0022Substation\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022426ba239-82a2-4f5c-88f4-47bc50b23f3b\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/energy-article.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EGrounding is so much more important than most people think!\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EGrounding errors can cause electrical shock, fires, equipment damage, and power quality problems.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn this article, we\u2019ll give you a basic understanding of grounding and outline its importance.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat is a ground?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThe US National Electrical Code (NEC) Article 100 defines a ground as: \u201Ca conducting connection, whether intentional or accidental, between an electrical circuit or equipment and the earth, or to some conducting body that serves in place of the earth\u201D.\u003C/p\u003E\n\u003Cp\u003EGrounding actually encompasses two different subjects: earth grounding and equipment grounding.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EEarth grounding is an intentional connection from a circuit conductor, usually the neutral, to a ground electrode placed in the earth. Equipment grounding ensures that operating equipment within a structure is grounded properly.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThese two grounding systems must be kept separate except for connections between the two systems. This prevents differences in voltage potential from a possible flashover from lightning strikes.\u003C/p\u003E\n\u003Cp\u003EThe purpose of a ground is to provide a safe path for the dissipation of fault currents, lightning strikes, static discharges, and electromagnetic interference (EMI).\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat affects the grounding resistance?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EWhen installing grounding systems, focus on ways to reduce the ground resistance. Here are ways to effectively lower ground resistance:\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003E1. Driving ground electrodes deeper\u003C/strong\u003E\u003Cbr /\u003E\nThe resistance level can generally be reduced by an additional 40% by doubling the length of the ground electrode.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E2. Multiple ground electrodes\u003C/strong\u003E\u003Cbr /\u003E\nMore than one electrode is driven into the ground and connected in parallel to lower the resistance.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E3. Increased diameter of the ground electrode\u003C/strong\u003E\u003Cbr /\u003E\nAlthough this may have very little effect, it does help lower resistance. For example, you could double the diameter of a ground electrode and your resistance would only decrease by 10%.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E4. Complex ground system design\u003C/strong\u003E\u003Cbr /\u003E\nComplex grounding systems consist of multiple ground rods, connected, mesh or grid networks, ground plates, and ground loops. These systems are typically installed at power generating substations, central offices, and cell tower sites. Complex networks dramatically increase the amount of contact with the surrounding earth and lower ground resistances.\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/download/fluke-earth-ground-testing-range.pdf\u0022\u003E\u003Cimg alt=\u0022Ground system design\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022975dd84b-b29e-4f1e-8f5e-825b67590c2f\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Ground%20system%20design.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhy ground? \u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EPoor grounding contributes to downtime. Moreover, a lack of good grounding is also dangerous and increases the risk of equipment failure.\u003C/p\u003E\n\u003Cp\u003EWithout an effective grounding system, you could be exposed to the risk of:\u003Cbr /\u003E\n- electric shock\u003Cbr /\u003E\n- instrumentation errors,\u003Cbr /\u003E\n- harmonic distortion issues,\u003Cbr /\u003E\n- power factor problems\u003Cbr /\u003E\n- and a host of possible intermittent dilemmas\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to look for?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAddressing grounding problems requires testing the grounding system and then retesting after any corrections or modifications.\u003Cbr /\u003E\nPay particular attention to:\u003Cbr /\u003E\n- corrosion in ground rods and their connections due to exposure to moisture, salt and fluctuating temperatures.\u003Cbr /\u003E\n- a year-to-year increase in resistance of 20 percent\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThese red flags should be investigated immediately.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EIt\u0027s good to be grounded\u2026\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EIf fault currents have no path to the ground through a properly designed and maintained grounding system, they will find unintended paths that could include people.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ETherefore, structures with properly grounded electrical systems are critical to the safety of people and equipment, giving current from a lightning strike or utility overvoltage a safe path to earth.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EWhether simple or complex, grounding systems require periodic testing to ensure their readiness.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ELearn more about grounding! Click \u003Ca href=\u0022https://www.magnetgroup.co.za/download/fluke-webinars.pdf\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to register for free educational webinars!\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ETurn to Fluke for their comprehensive earth ground testing products. Click \u003Ca href=\u0022https://www.magnetgroup.co.za/download/fluke-earth-ground-testing-range.pdf\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to download a brochure.\u00A0\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ENeed a grounding solution? Click \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to chat to our electrical experts now!\u003C/p\u003E\n", "created": "Nov 2020", "terms": "Electrical, Education" }, { "title": "READ | An important reminder about Safety in the Workplace", "nid": "443", "body": "\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cimg alt=\u0022Safety in the workplace\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u00225d42ea8d-7ce8-4021-b765-e47310b96245\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Safety%20article%20image%20-%20smaller_1.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003ESafety is still a prevalent topic that needs to be kept front of mind - no matter how compliant your facility is, or how informed you assume your employees may be\u2026\u003C/p\u003E\n\u003Cp\u003EFacilities that prioritize workplace safety report fewer accidents and a higher productivity rate. The best tip for a safer facility is to make it visual. Hazard communication using labels and signage assists workers to clearly identify risks.\u003C/p\u003E\n\u003Cp\u003EIn this article, we provide a few reminders on workplace safety \u2013 a great read to share with all your colleagues and staff!\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow safe is your workplace? \u003C/strong\u003E\u003Cbr /\u003E\nStandardizing all processes and procedures is the best way to establish an effective health and safety programme. This can be a costly exercise, especially when engaging with health \u0026amp; safety experts, but it is far less costly than the effect of an unmitigated risk. When it comes to safety, proactive planning should far outweigh reactive planning\u2026\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ESteps to minimize safety risks in a facility:\u003Cbr /\u003E\n1. Identify risks using labels\u003C/strong\u003E\u003Cbr /\u003E\nRun regular risk reviews to pinpoint potential safety hazards and ensure these risks are documented. Moreover, use hazard communication tools such as labels and safety markers to clearly identify risks to workers. A visual workplace is a safer workplace.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003E2. PPE or no entry\u003C/strong\u003E\u003Cbr /\u003E\nWorkers must wear safety gear whilst on the premises. Foster an environment that places emphasis on personal safety \u2013 have visual reminders in change rooms and common areas. Most importantly, ensure workers understand that there is no compromise \u2013 PPE or no entry into the facility.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003E3. Restrict access\u003C/strong\u003E\u003Cbr /\u003E\nOnly necessary \u0026amp; authorised personnel who are familiar with the technology should be granted access to your facility\u2019s systems - especially fire, security and life safety equipment. If safety equipment is tampered with, it could be ineffective when it\u2019s actually needed.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003E4. Continuous safety training and assessments\u003C/strong\u003E\u003Cbr /\u003E\nEmployees should be so familiar with safety protocol that they should be able to recite it from memory! Couple periodic safety training sessions with mandatory drills and assessments to ensure all workers are familiar with procedure.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003E5. Take it back to the basics\u003C/strong\u003E\u003Cbr /\u003E\nDon\u2019t assume that workers are knowledgeable on basic electrical safety practices. The amount of electrical safety accidents that take place is astronomical! Mitigate this risk by educating and reminding staff about electrical safety.\u003C/p\u003E\n\u003Cp\u003EHere are a few basic electrical safety tips to adhere to:\u003Cbr /\u003E\n- Only use portable equipment close to a plug\u003Cbr /\u003E\n- Place clearly identified power switches close to fixed machinery\u003Cbr /\u003E\n- Never pull a cable to release a plug from its socket\u003Cbr /\u003E\n- Place clear markers or labels on faulty equipment and on dangerous equipment\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EHave you made your workplace visual? \u003C/strong\u003E\u003Cbr /\u003E\nIt is vitally important to maintain a safe, compliant and visually instructive work environment. Hazards can be clearly articulated by printing safety labels and other important safety signage. This is especially effective when communicating hazards to a multi-lingual workforce. Instructions that are clearly visible and attention-grabbing can help reduce the risk of accidents.\u003C/p\u003E\n\u003Cp\u003ENeed a labelling solution for your facility?\u003Cbr /\u003E\n\u003Ca href=\u0022https://www.youtube.com/watch?v=ooQjnaxRyvw\u0022\u003E\u003Cstrong\u003EWATCH \u003C/strong\u003E\u003C/a\u003EBrady\u0027s solutions for a visual workplace...\u003Cbr /\u003E\nClick \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to chat to us for a workplace safety solution now!\u003C/p\u003E\n", "created": "Nov 2020", "terms": "Electrical, Education" }, { "title": "LEARN | Thermal imaging for preventive maintenance and safety", "nid": "439", "body": "\u003Cp class=\u0022text-align-justify\u0022\u003EDid you know that regular inspections using infrared cameras can help keep your facility\u2019s systems running efficiently? Using thermal imagers is also a safer way to detect system failures, especially in hazardous environments.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EWhether you\u2019re looking for hot or cold spots, or the apparent surface temperature of a component or target area, using infrared cameras help you find problems quickly and safely.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn this article, we\u2019re discussing the use of infrared cameras in industry for preventive maintenance and the promotion of safety. Let\u2019s start by taking a glance at how infrared cameras work, the benefits of using them, and their role in preventive maintenance and safe inspection.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EHow do infrared cameras work?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAll objects emit infrared energy, known as a heat signature. An infrared camera (also known as a thermal imager) detects and measures the infrared energy of objects. The camera converts that infrared data into an electronic image that shows the apparent surface temperature of the object being measured.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAn infrared camera contains an optical system that focuses infrared energy onto a special detector chip (sensor array) that contains thousands of detector pixels arranged in a grid. Each pixel in the sensor array reacts to the infrared energy focused on it and produces an electronic signal. The camera processor takes the signal from each pixel and applies a mathematical calculation to it to create a colour map of the apparent temperature of the object. Each temperature value is assigned a different colour. The resulting matrix of colours is sent to memory and to the camera\u2019s display as a temperature picture (thermal image) of that object.\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cimg alt=\u0022how infrared cameras work\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022500e8a1e-adc4-453e-a249-6b0339034dbb\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/CAMERA-01.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u00A0\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EMany infrared cameras also include a visible light camera that automatically captures a standard digital image with each pull of the trigger. By blending these images it is easier to correlate problem areas in your infrared image with the actual equipment or area you are inspecting.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EWhy use infrared cameras? \u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EInfrared thermography helps detect subtle problems before they result in failures. In industrial applications, some equipment problems can be spotted through unusual vibration or sounds, but many other problems do not present such obvious symptoms. Many electrical problems can be detected by their thermal patterns, which, if not identified, could either lead to equipment failure or a more serious electrical hazard. Moisture problems in ceilings and walls can be very difficult to find before they become serious enough to damage or destroy building contents.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn all of these cases, an infrared camera can speed up diagnosis, reduce (or perhaps even avoid) unscheduled downtime, and minimize damage to structures and contents. Infrared thermography offers a variety of advantages, because it can be used for:\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EMost types of equipment\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003ECollecting data in a hazardous environment from a safe distance\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EScanning large areas such as walls, ceilings, and roofs quickly\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EGathering data without disrupting production\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EQuickly identifying irregularities in specific locations\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EDetecting problems before failure\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThese advantages produce several specific benefits for troubleshooting and preventive and predictive maintenance, including:\u003Cbr /\u003E\n\u003Cstrong\u003EIncreased safety. \u003C/strong\u003ETechnicians can often inspect without directly contacting equipment or interrupting its operation. They also can potentially inspect ductwork and ceilings without having to climb ladders or use a lift.\u003Cbr /\u003E\n\u003Cstrong\u003EImproved reliability. \u003C/strong\u003EMore accurate information makes it easier for maintenance teams to fix problems before they result in large-scale losses, thus significantly reducing unscheduled downtime.\u003Cbr /\u003E\n\u003Cstrong\u003EBetter assurance of repairs. \u003C/strong\u003EUsing an infrared camera to quickly scan a repaired component or structural area allows a technician to verify that the repair was successfully completed, or identify subtle signs that further repair is needed.\u003Cbr /\u003E\n\u003Cstrong\u003ESuccessful commissioning of new installations. \u003C/strong\u003EThermography can be used to document the condition of equipment at the time of acceptance, to verify manufacturer performance specifications or provide a basis for comparison at a later time. A thermal image can also indicate potential faults in installation, so that if a problem is found it can be immediately corrected or monitored until a repair can be scheduled.\u003Cbr /\u003E\n\u003Cstrong\u003EMonitor equipment deterioration. \u003C/strong\u003EYou can use a thermal imager to monitor the condition and characteristics of your equipment against predetermined tolerances. This will help predict possible malfunctions or failures, allowing you to repair or replace the deteriorating components before they fail completely and potentially cause unplanned downtime.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EInfrared inspection promotes safety...\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EFrom a health and safety perspective, the ability to scan industrial equipment and processes from a distance it is of vital importance. Reduced exposure to hazards is especially helpful for:\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E1. Electrical system inspection\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EElectrical inspections usually involve energized equipment. Currently, most electricians perform these inspections by de-energizing the system, opening the panel door, re-energizing the system, and scanning the panel with a thermal imager.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EOne of the biggest danger points, particularly with electrical systems of 480 V and higher, occurs as the enclosure is opened. That can trigger a phase-to-phase or phase-to-ground arc flash, which is an extremely high-temperature discharge (up to 19,427\u00B0C).\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EInspecting with an infrared camera can help reduce the risk of arc flash and increase your efficiency by:\u003Cbr /\u003E\n- Allowing you to inspect the equipment from outside the arc flash zone.\u003Cbr /\u003E\n- Avoiding the need to open the enclosure by accurately scanning equipment through special infrared transparent windows or viewports in enclosure doors or covers.\u003Cbr /\u003E\n- Reducing the amount of personal protective equipment (PPE) you need to wear based on your distance from the inspection target\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E2. Potentially explosive environments\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAny industrial environment where a mixture of gases, dust, or vapour could ignite and cause an explosion is especially hazardous. Some of the most common are petrochemical processing, oil platforms and refineries, and pipelines.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThe most obvious way to minimize the risk of an explosive event occurring is to avoid those environments wherever possible. While that is not always possible, there are situations where you can get the information you need by scanning the process or equipment from a safe distance with an infrared camera that provides the appropriate resolution and distance-to-spot ratio.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn some cases, you may need to add a 2x or 4x infrared telephoto lens to see enough detail from a safe distance. In addition to keeping technicians out of the most extreme danger zones, this long distance scanning can save a lot of climbing, and allow you to inspect areas that you wouldn\u0027t be able to get close enough to otherwise, without shutting down production.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E3. Building inspection thermography\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EUsing an infrared camera equipped with a telephoto lens can help you avoid having to climb up into the rafters of a warehouse or factory to inspect ceilings, walls, and ductwork. With a wide angle or standard lens you can inspect a lot of roof area quickly from one position, and avoid having to get too close to the edge or move around too much on a weakened structure. This can reduce your risk of falls and expedite your inspections.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EIn closing\u2026\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EHeat is often an early symptom of equipment damage or malfunction, making it important to monitor in preventive maintenance programs. Using infrared preventive maintenance regularly to check the temperature of critical equipment allows you to track operating conditions over time and quickly identify unusual readings for further inspection. By monitoring equipment performance and scheduling maintenance when needed, facilities can reduce the likelihood of unplanned downtime due to equipment failure, spend less on \u201Creactive\u201D maintenance fees and equipment repair costs, and extend the lifespan of machine assets. Thermal imaging also presents a safer means of detecting system failure, especially in harsh environments.\u00A0\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EDo you need a thermal imaging solution for your facility? Click \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to chat to us about infrared cameras and our \u003Ca href=\u0022https://www.magnetgroup.co.za/download/magnet-offers-advanced-thermal-imaging-services-ver1.pdf\u0022\u003E\u003Cstrong\u003Ethermography services\u003C/strong\u003E\u003C/a\u003E.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ESource:\u003C/strong\u003E\u003Cbr /\u003E\n\u003Ca href=\u0022https://www.fluke.com/en/learn/best-practices/measurement-basics/thermography\u0022\u003Ehttps://www.fluke.com/en/learn/best-practices/measurement-basics/thermography\u003C/a\u003E\u003C/p\u003E\n", "created": "Oct 2020", "terms": "Electrical, Education" }, { "title": "LEARN | The Value of Partial Discharge Data", "nid": "435", "body": "\u003Cp\u003E\u003Cstrong\u003EWhat is Partial Discharge?\u003C/strong\u003E\u00A0\u003C/p\u003E\n\u003Cp\u003EA partial discharge (PD) is an \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-electrical/index.php\u0022\u003E\u003Cstrong\u003Eelectrical\u003C/strong\u003E\u003C/a\u003E discharge or spark that bridges a small portion of the high voltage insulation between two conducting electrodes or a conducting electrode and earth. Partial discharge can occur at any point in the insulation system, where the electric field strength exceeds the breakdown strength of the insulating material. PD activity can have a detrimental effect on your MV and HV assets.\u00A0\u003C/p\u003E\n\u003Cp\u003EClick \u003Ca href=\u0022https://www.magnetgroup.co.za/news.php?type=articles\u0026amp;name=NEW--Understanding-Partial-Discharge\u0022\u003E\u003Cstrong\u003Ehere \u003C/strong\u003E\u003C/a\u003Eto learn more about Partial Discharge...\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/news.php?type=articles\u0026amp;name=NEW--Understanding-Partial-Discharge\u0022\u003E\u003Cimg alt=\u0022Sparks\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u002255d9f24b-2eaa-48f2-9f0a-6330324e0897\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/blog-5-9-18%20electrical%20jpg_0.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EThe Value of Partial Discharge (PD) Data\u003C/strong\u003E\u003C/p\u003E\n\u003Cdiv\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThe latest PD instruments and systems are extremely valuable for identifying faults as they develop at an early stage and preventing them from developing into failures \u2013 the \u2018quick health check\u2019 approach.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EBut the information they gather is also playing a major part in transforming the industry\u2019s approach to asset management itself: from one based on time-scheduled maintenance and replacement, to one based on a detailed understanding of the condition of the asset base.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EM\u003C/strong\u003E\u003Cstrong\u003Eaximising the value of PD data is essentially carried out at two levels:\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E1. Asset Condition Registers\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EExpert analysis and interpretation of PD activity readings gives a clear indication of the condition of assets, including accurate predictions of when they are likely to fail. In EA Technology\u2019s case, this is based on a unique database, built up over more than 30 years, which shows how tens of thousands of asset types have deteriorated over time.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThis approach enables operators to develop registers of assets, in which each asset is accorded a \u2018health index\u2019 showing its present condition, its predicted date of failure and/or its remaining service life.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThere is strong evidence that basing maintenance and replacement on actual condition is far more cost effective than time-scheduled interventions or a \u2018wait until it stops working\u2019 approach. This is because condition based regimes:\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EPrevent expensive, unexpected failures.\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EPrevent needless invasive maintenance, which is costly, disruptive and often creates more faults.\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EEnables operators to prioritise expenditure on a strictly \u2018need to\u2019 basis.\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E2. C\u003C/strong\u003E\u003Cstrong\u003Eondition Based Risk Management (CBRM)\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThe ability to measure the condition of live assets is the key to CBRM: a comprehensive new methodology, which takes condition based asset management to a higher level, enabling managers to take more intelligent decisions on asset renewal strategies.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThe effectiveness of CBRM derives from factoring together PROBABILITY (based on asset condition) and CONSEQUENCES (based on quantifiable losses) of asset failure, to determine risk in terms of financial cost.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ECBRM provides the answers to the key questions:\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EIf an asset costing a certain amount fails, what will be the consequential loss to the business?\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EIf an asset is refurbished or replaced at a certain cost, what will be the benefit to the business?\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003ETherefore, where should we prioritise our asset renewal spending?\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp class=\u0022text-align-right\u0022\u003E\u003Cem\u003EBy Neil Davies, EA Technology International\u003C/em\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u00A0\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u00A0\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EThe UltraTEV\u00AE Plus\u00B2 makes PD discovery simple!\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.youtube.com/watch?v=6srRXvzHVOE\u0026amp;feature=youtu.be\u0022\u003E\u003Cimg alt=\u0022EA Tech Ultra Tev plus\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022cd8cf569-1d8c-4f86-a7f5-b1297d33a9df\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/UltraTEV%20Plus2%20instrument.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u00A0\u003C/p\u003E\n\u003C/div\u003E\n\u003Cp\u003EThis latest hand-held PD instrument from EA Technology is easy-to-use, and combines additional sensing capabilities with real time advanced analytical features.\u00A0\u003C/p\u003E\n\u003Cp\u003EClick here to \u003Ca href=\u0022https://www.youtube.com/watch?v=6srRXvzHVOE\u0026amp;feature=youtu.be\u0022\u003E\u003Cstrong\u003EWATCH\u003C/strong\u003E\u003C/a\u003E more on this incredible device!\u00A0\u003C/p\u003E\n\u003Cp\u003EClick here to \u003Ca href=\u0022https://www.magnetgroup.co.za/download/ultratev-plus.pdf\u0022\u003E\u003Cstrong\u003EDOWNLOAD\u003C/strong\u003E\u003C/a\u003E more information on the\u00A0UltraTEV\u00AE Plus\u00B2.\u003C/p\u003E\n\u003Cp\u003E\u00A0\u003C/p\u003E\n\u003Cp\u003ENeed a PD detection and measurement solution for your facility? Click here to \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003ECHAT\u003C/strong\u003E\u003C/a\u003E\u00A0to one of our experts now!\u003C/p\u003E\n", "created": "Oct 2020", "terms": "Electrical, Education" } ]