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Arc flash protection-Arc flash personal protective equipment-Arc flash suite

Arc Flash is the result of a rapid release of energy due to an arcing fault. Adiradh Energy supply the latest in ArcFlash Safety equipment, including Arc Flash Switching Suits, Arc Flash Coveralls, Arc Flash Jackets & Trousers, Arc Flash Other Workwear, Arc Flash Gloves, Helmets & Visors, Arc Flash Balaclavas.The temperature of an arc flash can reach 35,000 degrees Fahrenheit – which is up to four times hotter than the sun. This means workers in potential arc flash environments need specialized personal protection equipment (PPE).For over a century, Honeywell has been focusing on engineering solutions to make workplaces that are smarter, safer, more comfortable, productive and efficient.Our arc flash PPE offers a head-to-toe solution including garments, head protection, foot protection, hand protection and accessories to use on the job.Salisbury manufactures personal electrical products that comply with ASTM and OSHA regulations. Salisbury provide a complete solution for arc flash protection clothing and PPE. Salisbury also supply Arc Flash Protection Kits with ATPV ratings of 8 cal/cm², 12cal/cm²,20 cal/cm², 31 cal/cm², 40 cal/cm², 55 cal/cm², 75 cal/cm² and 100 cal/cm²

Salisbury Pro-Wear Arc Flash Protection Clothing Range

Salisbury Pro-Hood Arc Flash Protection Hoods 8 – 100 cal/cm²

Salisbury Pro-Wear Arc Flash Protection Bib Overalls 8 – 100 cal/cm²

Salisbury Pro-Wear Arc flash Protection Coats 8 – 100 cal/cm²

Salisbury Pro-Wear Arc Flash Protection Premium Coveralls 8 – 20 cal/cm²

Salisbury Pro-Wear Arc Flash Protection Premium Overpants 8 – 20 cal/cm²

 Pro-Wear Plus Arc Flash 12 Cal/cm2

The Honeywell Salisbury NEW Pro-Wear Plus 12 Cal/cm2 arc flash garments are engineered to be lightweight, better fitting and come with a modern look.

Arc Flash Suite 12 Cal-cm2

Pro-Wear Plus Arc Flash 12 Cal-cm2

Features & Benefits:

● Lighter in overall garment weight compare to previous Pro-Wear garments

● Westex UltraSoft  fabric is durable and provides long service life

● Available individually (Coat, Bib Overalls, Pants, Coveralls, Hood,WBS Shields) or in kits

● Improved mobility through updated fit and design

Certifications:

● NFPA 70E PPE Categories 1 & 2

● ASTM F1506

● OSHA 29 CFR 1910.269

● Tested per ASTM F1959

Coat Standard Options:

FR knit cuffs Shortened stand up collar Drop tail back Easy open storm flap Articulated sleeve for improved comfort and movement

Pant & Bib Overalls Standard Options:Extended waist tabs for easy opening and adjustment Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Coverall Standard Options:FR knit cuffs Shortened stand up collar Articulated sleeve for improved comfort and movement Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Adiradh Energy offers Pro-Wear Plus Arc Flash suite 12 Cal/cm2 in India;Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur;; Durgapur; Kharagpur; Raigarh; Bhilai;Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities

Pro-Wear Plus Arc Flash 8 Cal/cm2

The Honeywell Salisbury NEW Pro-Wear Plus 8 Cal/cm2 arc flash garments are engineered to be lightweight, better fitting and come with a modern look.

Arc Flash 8 Cal/cm2

Pro-Wear Plus Arc Flash 8 Cal/cm2

Features & Benefits:

● Lighter in overall garment weight compare to previous Pro-Wear garments

● Westex UltraSoft fabric is durable and provides long service life

● Available individually (Coat, Bib Overalls, Pants, Coveralls, Hood, WBS Shields) or in kits

● Improved mobility through updated fit and design

Certifications:

● NFPA 70E PPE Categories 1 & 2

● ASTM F1506

● OSHA 29 CFR 1910.269

● Tested per ASTM F1959

Coat Standard Options:FR knit cuffs Shortened stand up collar Drop tail back Easy open storm flap Articulated sleeve for improved comfort and movement

Pant & Bib Overalls Standard Options:Extended waist tabs for easy opening and adjustment Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Coverall Standard Options:FR knit cuffs Shortened stand up collar Articulated sleeve for improved comfort and movement Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Hood Standard Options:Paulson ArcVent for increased air flow and acoustics Updated patterns for better fit and easier head movement

Adiradh Energy offers Pro-Wear Plus Arc Flash PPE 8 Cal/cm2 in India;Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur;; Durgapur; Kharagpur; Raigarh; Bhilai;Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities

Pro-Wear Plus Arc Flash 12 Cal/cm2

The Honeywell Salisbury NEW Pro-Wear Plus 20 Cal/cm2 arc flash garments are engineered to be lightweight, better fitting and come with a modern look.

Arc Flash 20 Cal-cm2

Pro-Wear Plus Arc Flash 20 Cal/cm2

Features & Benefits:

● Lighter in overall garment weight compare to previous Pro-Wear garments

● Westex UltraSoft fabric is durable and provides long service life

● Available individually (Coat, Bib Overalls, Coveralls, Hood, Lift Front Hood,WBS Shields) or in kits

● Improved mobility through updated fit and design

Certifications:

● NFPA 70E PPE Categories 1 & 2

● ASTM F1506

● OSHA 29 CFR 1910.269

● Tested per ASTM F1959

Coat Standard Options:FR knit cuffs Shortened stand up collar Drop tail back Easy open storm flap Articulated sleeve for improved comfort and movement

Pant & Bib Overalls Standard Options:Extended waist tabs for easy opening and adjustment Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Coverall Standard Options:FR knit cuffs Shortened stand up collar Articulated sleeve for improved comfort and movement Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Hood Standard Options:Paulson ArcVent for increased air flow and acoustics Updated patterns for better fit and easier head movement

Adiradh Energy offers Pro-Wear Plus Arc Flash suite 20 Cal/cm2 in India;Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur;; Durgapur; Kharagpur; Raigarh; Bhilai;Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities

Pro-Wear Plus Arc Flash 40 Cal/cm2

Honeywell Salisbury’s NEW Pro-Wear Plus Premium 40 Cal/cm2 Arc Flash Protection garments are the lightest option on the market with a total weight of 11 oz/yd2. Engineered to be lightweight, more breathable, better fitting and softer to the touch, it’s a difference you really can feel. All this combine with improved moisture management and modern look take comfort to the next level.
Features & Benefits:
● NEW Pro-Wear Plus Premium 40 Cal/cm2 garments are the lightest* option on the market
● Standard and Premium 40 Cal/cm2 garments are more breathable
● GlenGuar outer shell provides inherent AR/FR protection
● Available individually (Coat, Bib Overalls, Hood, Lift Front Hood) or in kits
● Improved mobility through updated fit and design
Certifications:
● NFPA 70E PPE Categories 1, 2, 3 & 4
● ASTM F1506
● OSHA 29 CFR 1910.269
● Tested per ASTM F1959/F1959M-14e1
Coat Standard Options:
FR knit cuffs Shortened stand up collar Drop tail back Easy open storm flap Articulated sleeve for improved comfort and movement
Bib Overalls Standard Options:Extended waist tabs for easy opening and adjustment Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement
Hood Standard Options:Paulson Arc Vent  for increased air flow and acoustics Updated patterns for better fit and easier head movement
Adiradh Energy offers Pro-Wear Plus Arc Flash PPE 40 Cal/cm2 in India;Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur;; Durgapur; Kharagpur; Raigarh; Bhilai;Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities

Pro-Wear Plus Arc Flash 75 Cal/cm2

Honeywell Salisbury’s NEW Pro-Wear Plus 75 Cal/cm2 Arc Flash Protection garments are engineered to be lightweight, more breathable, better fitting and softer to the touch, it’s a difference you really can feel. All this combine with improved moisture management and modern look take comfort to the next level.

Pro-Wear Plus Arc Flash 75 Cal/cm2

Pro-Wear Plus Arc Flash 75 Cal/cm2

Features & Benefits:

● GlenGuard outer shell provides inherent AR/FR protection

● Available individually (Coat, Bib Overalls, Hood) or in kits

● Improved mobility through updated fit and design

Certifications:

● NFPA 70E PPE Categories 1, 2, 3 & 4

● ASTM F1506

● OSHA 29 CFR 1910.269

● Tested per ASTM F1959

Coat Standard Options:

FR knit cuffs Shortened stand up collar Drop tail back Easy open storm flap Articulated sleeve for improved comfort and movement

Bib Overalls Standard Options:Extended waist tabs for easy opening and adjustment Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Hood Standard Options:Paulson Arc Vent for increased air flow and acoustics Updated patterns for better fit and easier head movement

Adiradh Energy offers Pro-Wear Plus Arc Flash PPE 75 Cal/cm2 in India;Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur;; Durgapur; Kharagpur; Raigarh; Bhilai;Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities

Pro-Wear Plus Arc Flash 100 Cal/cm2

Honeywell Salisbury’s NEW Pro-Wear Plus 100 Cal/cm2 Arc Flash Protection garments are the lightest option on the market with a total weight of 22.9 oz/yd2. Engineered to be lightweight, more breathable, better fitting and softer to the touch, it’s a difference you really can feel. All this combine with improved moisture management and modern look take comfort to the next level.

PPE 100 Cal-cm2

Arc Flash Suit 100 Cal-cm2

Features & Benefits:

● GlenGuard outer shell provides inherent AR/FR protection

● Available individually (Coat, Bib Overalls, Hood) or in kits

● Improved mobility through updated fit and design

Certifications:

● NFPA 70E PPE Categories 1, 2, 3 & 4

● ASTM F1506

● OSHA 29 CFR 1910.269

● Tested per ASTM F1959

Coat Standard Options:

FR knit cuffs Shortened stand up collar Drop tail back Easy open storm flap Articulated sleeve for improved comfort and movement

Bib Overalls Standard Options:Extended waist tabs for easy opening and adjustment Articulated knee for ergonomic fit Extended leg slits Elastic back waist for improved comfort Diamond gusseted crouch for ease of movement

Hood Standard Options:Paulson ArcVent  for increased air flow and acoustics Updated patterns for better fit and easier head movement

Adiradh Energy offers Pro-Wear Plus Arc Flash suite 100 Cal/cm2 in India;Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur;; Durgapur; Kharagpur; Raigarh; Bhilai;Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities

Arc Flash Accidents – LV Switchboards

An arc flash accident in a switchboard occurs when a large electrical current passes through ionised air and gasses. Such arc flash accidents can be triggered in many ways, but examples are when a metallic tool is dropped across live busbars during maintenance or when a circuit breaker fails during a switching operation. Statistics show that the majority of arc flash accidents relate to LV installations.The effects of arc flash are dramatic. Almost instantaneously, the temperature rises by around 20,000 ºC in the vicinity of the arc flash. This vaporises copper conductors and since the volume of the vapour is 67,000 times that of the metal an explosion results. Secondary arc flash effects include the expulsion of molten globules of copper, an intensely bright flash of light and the generation of pressure waves.

Any person in the vicinity of an arc flash accident is at high risk of being injured or killed if not wearing adequate arc flash suit . It’s clear, therefore, that every effort must be made to eliminate these accidents or at least to minimise their effects. The best approach is to avoid the conditions under which arc flash accidents are most likely to occur, ideally by never working on live equipment. Sometimes, however, live working cannot be avoided and there is always the possibility of “isolated” systems being made live accidentally and triggering an arc flash incident.A solution often proposed is to equip maintenance workers with arc flash personal protective equipment (PPE). Given the range of hazards associated with arc flash accidents, a risk assessment is likely to indicate that the PPE should include a full-body arc flash protective suit, substantial gauntlets and a helmet with an integral face shield. This may provide adequate protection, but it doesn’t make it easy for the wearer to work on electrical installations!

Another possibility is to design the switchboard so that arc flash accidents cannot occur, by incorporating features such as insulated arc-free busbar assemblies. No circuit breaker can clear a fault this fast, so a more radical approach is needed. That is to place a bolted short-circuit across the supply within milliseconds of an arc being detected. What happens then is that the energy that would otherwise feed the arc is diverted to the short circuit, so that the arc never has a chance to develop. The upstream circuit breaker will subsequently clear the short circuit fault in about 50 ms.Devices that can place what is, in effect, a bolted short circuit across the supply within around 2 ms of being triggered are now available, and are central to the operation of Eaton’s Arcon arc control system for switchboards. These short circuiting devices must, of course, be used in conjunction with a trigger capable of reacting to an arc in its very earliest stages.

Arc flash is a significant hazard in LV installations. As we have seen, there are a number of ways this hazard can be addressed, but most have significant drawbacks or limitations. The latest arc control systems are however exceptions, as they provide solutions that are dependable, convenient and effective.Arc flash PPE  and Arc flash suit also protects workers against arc flash when carrying out maintenance of Low Voltage Switchgear, Power Distribution & Control Equipment in data centres.

WHAT IS AN ARC FLASH !

Arc flash is a short circuit where the electrical current arcs across an air gap.Flashover occurs when an electrical discharge travels through the air and releases an intense and explosive burst of energy – the flash is capable of causing serious harm or fatal injury therefore appropriate clothing and protection must be worn when carrying out electrical maintenance tasks which could release an arc flash. n laymans’ terms, an arc flash occurs when
electrical current jumps across an air gap between conductors,like when lightening jumps down to earth.

That large instantaneous discharge of electrical current causes an explosion

  • Extremely high levels of energy, heat and light are released in fractions of seconds
  • Temperatures can reach up to 35,000ºF (19,000ºC) that’s 4 times the temperature of the Sun’s surface!
  • Cabinets and machinery can be instantaneously turned into molten metal or shrapnel
  • A blast and pressure wave that can damage eardrums and even strip away garments

Over 50% of workplace accidents from low voltage switchgear are from arc related faults – they are not confined to medium/high voltage power distribution networks where even small levels of residual voltage can trigger an arc flash.

Generally, an arc flash results from either a phase to ground or a phase to phase fault during following activities:

  • Phasing Operations – especially MV-HV systems at 11kV, 33kV, 66kV, 132kV+
  • High Impedance Faults – Hi-Z arcing on overhead, substation and distribution feeders
  • MV HV Switchgear – opening/closing breakers and fused switches
  • Fusegear – changing fuses on LV distribution, street lighting and service feeder pillars
  • DC Battery Storage – opening doors/covers on systems during maintenance
  • Circuit Breakers – power racking is HRC4 task with arc rated clothing rated at 40 calories/cm2
  • Live Cables – excavation, fault finding, jointing near exposed LV and 11kV-33kV conductors
  • Jointing Cables – working in trench, substation and on link-boxes
  • 33kV Substations – testing and survey of cable terminations, RMU, transformers
  • High Voltage Flashovers – opening high voltage switchgear, cable boxes, cabinets and panels without following correct isolation procedures or obtaining necessary authorisation permits

3 COMMON CAUSES OF ARC FLASH

  • Human Error & Carelessness – unsafe, ambiguous work procedures, maintenance mistakes, mishandling conductive tools, cables and metal covers; overall absence of authorised procedures to carry out unfamiliar tasks on critical, high-risk electrical equipment
  • Negligent Preventive Maintenance – not checking for loose terminations, allowing conductive soot, dust and debris build-up critical in medium/high voltage networks. High resistance ground faults and not testing stored energy (e.g. spring-operated pressure switches)
  • Improper Electrical Equipment Sytems – incorrect modifications or using legacy equipment which is non-conformant with modern arc flash standards, such as open-type switchboards and fuseboards

EFFECTS OF ARC FLASH

  1. Body Burns – heat energy from a single arc flash can reach 35,000°C, serious thermal burns with destruction to skin and tissue
  2. Blast Injury – creates a fatal explosive pressure wave of energy and propulsion forces up to 2000 pounds per square foot
  3. Lung Damage – release of poisonous gases and exposes victims to inhalation of molten debris and droplets
  4. Hearing Loss – arc blast causes extreme high sound levels, resulting in potential hearing damage, ruptured ear drums
  5. Eyesight Damage – intense light from the flash may cause temporary or permanent blindness

ARC FLASH RISK LEVELS -NFPA 70E

The National Fire Protection Association (NFPA) in the USA introduced NFPA 70E “Standard for Electrical Safety in the Workplace” to reduce the number of arc flash related workplace accidents. NFPA 70E provides clear guidance on Personal Protective Equipment (PPE) selection to reduce and avoid injury in the event of an incident.

NFPA 70E-2012, the Standard for Electrical Safety in the Workplace, is the primary industry consensus standard in the USA that addresses arc flash safety – NFPA 70E contains extensive information on safe work practices, analysis procedures, requirements for documentation and PPE selection principles intended to allow for workers to be appropriately protected against arc hazards.

NFPA has identified 4 hazardous risk category (HRC) levels which is used to select the correct level of arc rating for protecting clothing and PPE – the severity danger according to HRC is the level of arc flash protection clothing that must be worn to protect against a minimum level of incident energy measured in calories/cm² as the table below.PPE used should match the calculated level of risk to ensure adequate worker protection.

Incident Energy Level
(cal / cm
2)
Hazard Risk
Category (HRC)
PPE Protection Type Arc Flash PPE Protection Details (Basic Examples)
0 – 1.2 0 0 1 layer untreated cotton (covering all body), polycarbonate safety spectacles, lightweight cotton gloves
1.21 – 4 1 1 Cotton undergarments, 1-layer flame retardant (FR) work wear, helmet, polycarbonate safety spectacles, lightweight FR gloves
4.1 – 8 2 2 As above but with 2 layer FR outer work wear that has wrist closures, and a full face polycarbonate face shield/visor. A FR single-layer balaclava may also be worn to protect the face
8.1 – 25 3 3 3 layer FR outer work wear with cotton under garments and FR shirt, a full-face hood or visor with safety spectacles underneath, chrome leather gauntlets
25.1 – 40 4 4 Typically 4 layer FR outer work wear, FR and electrically insulated footwear and suitable FR material spats to close off the ankle area, FR gloves or chrome leather gauntlets, a hood constructed from a triple layer of FR material with a sewn-in polycarbonate face shield with a minimum of 2 panels of suitable thickness with one coated with a gold film for UV protection.