How does an Arc occur?

Transcription

1 How does an Arc occur? Arc Flash Suits are designed to provide protection from arc flash heat exposures. Arc flash suits are designed to protect the electrical technician from heat and to reduce or minimize total burn injury. This helps to provide the user with extra seconds of protection to help escape possible secondary explosions or fires in the work area. Arc Flash suits can increase the chances of survival. Arc Flash suits will decrease the need for medical treatment such as skin grafts and the reduction in chances of subsequent infections. Safety is always a first priority in electrical engineering. The preservation of life is imperative. Arc Flash suits are a small cost in comparison to the loss in quality of life if a worker is exposed to an electric arc event. Electrical technicians, by law should always wear and be properly trained in the safe use and application of Arc Flash suits and appropriate personal protective equipment such as insulated rescue sticks for the possible electrical hazard with which they may face. Arc Flash clothing have long life spans if proper cleaning and maintenance of is implemented. What Causes Arc Flash? Arc flash is a short circuit through air that flashes over from one exposed live conductor to another conductor or to ground. Arc flashes occur in many ways: 1.Coming close to a high-amp source with a conductive object can cause the electricity to flash over. 2. Dropping a tool or otherwise creating a spark can ignite an arc flash 3. Equipment failure due to use of substandard parts, improper installation, or even normal wear and tear 4.Breaks or gaps in insulation 5.Dust, corrosion or other impurities on the surface of the conductor The NFPA 70E instructs employers to conduct an arc flash analysis to determine the amount of thermal energy that could be generated in an arc flash incident. The information is then used to define a flash protection boundary around the potential source, and to determine the level of arc-rated apparel and other personal protection equipment required when employees cross the boundary while they work on or near exposed live parts.

2 Components of a typical ARC Flashsuit: APTV 8 CAL 140 CAL Live Line Technology ARC Flash suits provide full body protection. An Arc Flash suit consists of the following products ARC Flash Hood, ARC Flash Jacket, ARC Trousers, ARC Flash gloves and protective boots. The ARC Flash categories range from as 8 CAL to 100 CAL, and a wide variety of clothing ranges such as ARC Flash undergarments, ARC LLT ARC Flash - Hood LLT ARC Jacket LLT ARC Bag LLT ARC FlashTrouser LLT ARC Gloves

3 Function of Nomex Arc Flash Suits : The protection provided from Nomex Arc Flash suites gives a person the benefit of a few seconds to escape the Arc flash, by preventing the burning of skin. The main characteristic of Nomex material is to self extinguish. (inflammable). NOMEX material is light in weight, does not support combustion, but begins to char at 700 to 800 F. The fabric, similar to nylon, is abrasion resistant, and is also non-absorbent. Nomex Arc Flash suites should always be worn when operating high voltage systems for example 11kv, 22kv or 33kv systems in applications such as switchgear inside Substations. (eg. 132kv/11kv) This is to protect against the potential hazard of an arc flash. Sizes : Small 8XL (prices do vary according to size). We provide sizing sheets to our clients to get accurate sizing. Colour : Royal blue Material : Fabric: UltraSoft double pre-shrunk, 677g/m². Cuffs: UltraSoft rib knit. Thread: Nomex. International Standards : Fabric: ASTM F1506; NFPA 70E; OSHA ; EN ISO 11612; EN ISO 11611; IEC 61482; ASTM F1959 & OEKO TEX STANDARD 100 Garment: SANS 724; ASTM F2621; IEC ; CE0339; ATPV¹ : from 8 cal/cm ², 51.5 cal/cm² to 140 cal/cm² HAF² : 93.9% Application : Personal protective switching suit designed for the electrical industry to withstand the thermal effects of an electric arc flash. Features : Indura Ultra Soft material. Thread: Nomex. Guaranteed flame resistant for the life of the garment. Machine washable. Excellent breathability. Cool cotton comfort. Arc Flash Jacket designed to interface with Arc Flash Hood.

4 Arc Suites Ratings : An electrical arc flash is more severe with higher voltages & higher Ka ratings of the equipment (switchgear) substation. The greater the flash, the greater the severity of the radiation exposed to the operator. It is imperative to get the correct grading of the Nomex Flash suite to ensure the necessary protection against radiation of the Arc flash. Our suites are available in Arc Thermal Performance values (ATPV) ; 8+ CAL. 12 CAL 25+ CAL, 40+ CAL 50+ CAL. 90+ CAL CAL CAL Arc Thermal Performance value (ATPV value) is presented in calories per centimeter square and represents the maximum capability possible from an arc flash protection for particular clothing. Characteristics of Nomex fabric : The fiber itself absorbs heat energy during the carbonization process. The fibers eliminate air movement and heat transfer to the interior skin area. An insulating barrier reduces heat transfer to the person. ARC Flash clothing categories: NFPA 70 E standard code There are 4 categories into which ARC Flash clothing are divided into: Hazard Category Clothing description APTV Value Category HRC 0 Non-melting, flammable materials(untreated cotton, wool, rayon, silk or blends. A fabric with 4.5 ounces No APTV value Category HRC 1 FR shirts and FR pants or FR coveralls, 4 CAL/cm Cal/cm² Category HRC 2 Cotton underwer, conventionsl shirts, trouser, plus 8 25 FR shirts, FR trouser or FR coveralls Cal/cm² Category HRC 3 Category HRC 4 Cotton underwear, plus FR shirt, FR trouser and FR coveralls. Cotton underwear, plus FR shirt, FR trouser and multi-layered Flash suit Cal/cm² 40 < Cal/cm²

5 Category HRC 1 - Under garments APTV 4-8 CAL/cm² AR (ARC rated) undergarments are worn underneath flash clothing and suits. These replace non- CAL rated under garments. Radiation heat can generated due to arc flash occurrences will still burn nylon clothing kept underneath the CAL rated garments, which is why AR undergarments need to be worn. It is better to remove all non-fr underwear, when wearing your flash suit. It is advisable to wear a 10 CAL undergarment underneath your flash suit. 10 CAL Full undergarments 10 CAL gloves 10 CAL Balaclava 10 CAL Underpants 8 CAL socks 14 CAL FR Beanie Purpose : To provide thermal protection by AR (Arc rated) and FR ( Fire retardant) material. These undergarments provide a comfortable form of ARC protection to be worn underneath AR protective clothing. Standard: NFPA 70E, ASTM F1506, EN 531

6 Category HRC 2 - ARC Rain suits APTV 12 CAL/cm² - 19 CAL/cm² - Application : The electrical industry in and around wet weather. It is never advisable to work in and around water when working with electricity. However should the need arise where a worker is working adverse weather the appropriate ARC Flash rainsuits should be provided. Description: Rain suit designed to be an electric arc resistant, waterproof protective ensemble, consisting of jacket with hood and bib trousers, HRC2, ATPV 12 cal/cm². Jacket: Waist length, hood-in-collar, two pockets with Velcro closure, nonconductive zipper front with dual over flies and snaps, Nomex mesh ventilation system, fall protection access, Velcro tab type wrist adjusters, 3M 40mm reflective trim down fly front, across cape back, around bottom hem, and around sleeve cuffs. Trousers: Bib style trouser with quick release suspender system, fly front with snap, Velcro tab type leg cuff adjusters, 3M 40mm reflective trim around calves and knees Material: Fabric: Nomex Moisture barrier: FR synthetic leather PU/PVC Weight: 265g/m² Hydrostatic resistance: >80psi 100% non-conductive materials Electrical industry: Arc Flash Clothing protects from thermal effects of arc flash only. This product must form part of an appropriate set of PPE to protect against the hazards of arc flash. ATPV: Arc Thermal Performance Value. The higher the value, the more insulated one is from second degree burn. HAF : Heat Attenuation Factor. The higher the HAF% the more heat is blocked by the fabric.

7 Category HRC 2 - High visibility flash suits APTV 16 CAL/cm² Application : ARC rated visibility suits. Applied where vision is impaired,. In the electrical industry the need may arise were high visibility garment are required due to adverse weather or poor visibility in the working environment. Description: HRC 2, ATPV 16.4cal/cm² Coverall with zipper and 2 breast pockets. Standard button down collar and adjustable cuffs with button closure. New Easy fit design for comfort fit and fashionable appearance. Standard: Fabric: NFPA 70E; NFPA 1977, NFPA 2112, ASTM F1506; OSHA 29 CFR ; CGSB ; OEKO TEX STD 100 ; EN 340 & EN ISO ATPV¹ : 12.4 cal/m² HAF² : 80.2% Extra reflective tape is available on demand. 16 CAL High visibility suits with a backpack or carry bag. Gloves are available. Category HRC 2 - High visibility reflective braces APTV 8 CAL/cm² Application : Reflective braces are worn in an around moving vehicles at construction sites to indicate the presence of the electrician. This could be in and around new electrical installations, such as panels, kiosks, or any electrical construction site. In the electrical industry these reflective braces are required to be AR (Arc rated) in event of an arc flash. Standard: Fabric: NFPA 70E; NFPA 1977, NFPA 2112, ASTM F1506; OSHA 29 CFR ; CGSB ; OEKO TEX STD 100 ; EN 340 & EN ISO ATPV¹ : 12.4 cal/m² HAF² : 80.2%

8 Category HRC 2 Casual wear APTV 8 CAL/cm² - 18 CAL/cm² Application : Casual wear for everyday work. Electricians working in and around low voltage panels, distribution boards and maintenance of general electrical installations CAL Shirt Description: ARC Flash clothing Shirt, Khaki, HRC 2, ATPV 12.4cal/cm² Long sleeve work wear shirt with buttons and 2 breast pockets. Standard button down collar and adjustable cuffs with button closure. New Easy fit design for comfort fit and fashionable appearance. Standard: SABS 724 Fabric: NFPA 70E; NFPA 1977, NFPA 2112, ASTM F1506; OSHA 29 CFR ; CGSB ; OEKO TEX STD 100 ; EN 340 & EN ISO ATPV¹ : 12.4 cal/m² HAF² : 80.2% CAL Jeans Description: Jean trousers, HRC 2, ATPV 18.3cal/cm² Denim jean trousers with zip and two back pockets. Regular design for comfort fit. Ladies design available on special request. Specification : Fabric: NFPA 70E; ASTM F1506; OSHA ; NFPA 2112; ISO Garment: ASTM F2621; SANS 724:2010 ATPV¹ : 18.3 cal/m² HAF² : 85.3% 12.4 CAL/cm² Headkit Description: Chin protector and cap bracket: To be worn in and around distribution boards. To be worn with a balaclava when working on distribution boards. Can also be used on Impact, chipping, grinding, machining, masonry work, riveting, sanding, furnace operations, and pouring, casting, utility operations. Specification : Fabric: Standard: NFPA 70E 2004, ASTM F2178 1, ANSI Z87.1 NFPA 2112; ISO Hazard Assessment: Thermal effects from arc flash. Face shield: The user must perform a Hazard Risk Assessment to determine the level of protection needed. Chin protector and cap bracket: Impact potential flying fragments, objects, sand and dirt, heat, hot sparks, molten metal splash.

9 Category HRC 2 Casual wear APTV 8 CAL/cm²- 18 CAL /cm² 12.4 CAL Shirt Application : Casual wear for everyday work. Electricians working in and around low voltage panels with low energy calorie values, distribution boards and maintenance of general electrical products. Description: ARC Flash clothing Shirt, BlueHRC 2, ATPV 12.4cal/cm² Long sleeve work wear shirt with buttons and 2 breast pockets. Standard button down collar and adjustable cuffs with button closure. New Easy fit design for comfort fit and fashionable appearance. Standard: Fabric: NFPA 70E; NFPA 1977, NFPA 2112, ASTM F1506; OSHA 29 CFR ; CGSB ; OEKO TEX STD 100 ; EN 340 & EN ISO ATPV¹ : 12.4 cal/m² HAF² : 80.2% CAL Jeans Description: Jean trousers, HRC 2, ATPV 18.3cal/cm² Denim jean trousers with zip and two back pockets. Regular design for comfort fit. Ladies design available on special request. Specification : Fabric: NFPA 70E; ASTM F1506; OSHA ; NFPA 2112; ISO Garment: ASTM F2621; SANS 724:2010 ATPV¹ : 18.3 cal/m² HAF² : 85.3% 12.4 CAL/cm² Headkit Description: Chin protector and cap bracket: Impact, chipping, grinding, machining, masonry work, riveting, sanding, furnace operations, and pouring, casting, utility operations. Specification : Fabric: Standard: NFPA 70E 2004, ASTM F2178 1, ANSI Z87.1 NFPA 2112; ISO Hazard Assessment: Thermal effects from arc flash. Face shield: The user must perform a Hazard Risk Assessment to determine the level of protection needed.

10 Category HRC 1 - Trousers & Jackets APTV 8 CAL/cm² - APTV 8 CAL/cm2 fall into category HRC 1 arc flash protection. Electrical applications below 1000v. Applications with lower voltages and lower fault levels have lower energy levels. Electricians working on distribution boards in various factories, mining and industries with lower voltage applications are not free from arc flash occurrences. Although lower voltages are less likely to jump across phases, when these do occur the arc flash can be just as harmful when the conditions allow. Arc flash occurrences are a factor of the distance between the phases and from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the user from the switchgear. Specification : Standard: Standards: Fabric: ASTM F1506; ASTM F1959; NFPA 70E; 1977; 2112; CGSB ; OSHA ; EN 340; EN ISO: 11612; IEC ; OEKO TEX STD. 100 & ASTM F1959. Garment: SANS 724; ASTM F2621; IEC CAL Heavy Duty Jacket ARC Flash clothing Shirt Khaki, HRC 2, ATPV 8.7 cal/cm². Long sleeve work wear shirt with buttons and 2 breast pockets with buttons. New Easy fit design for comfort fit and fashionable Continental design with Nomex zip, storm flap with Velcro front closure, one breast and two side pockets, knitted cuffs, HRC 2, ATPV 20.9 cal/cm² Material: Fabric: UltraSoft double pre-shrunk woven fabric 440g/m² Standard: Fabric: NFPA 70E NFPA 2112, SANS 724. ATPV¹ : 20.9 cal/m² HAF² : 85.4% 27 CAL Balaclava The Arc Goggle in combination with an approved balaclava and hard hat/helmet is the only known system that provides an alternative to the use of Bee Keeper style hoods for electric arc safety, up to 27 cal/cm². Provides primary eye protection as per ANSI Z84.1 and replaces the safety glass requirement. Compatible with cap style and full brim safety helmets/hard hats. Standard : Fabric: NFPA 70E, ASTM F2178 ATPV¹ : 27 cal/cm²

11 Category HRC 1 - ARC Flash suit kits APTV 8 CAL/cm ² ARC Flash clothing APTV 8 CAL/cm2 fall into category HRC 1 arc flash protection. Electrical applications below 1000 volts. Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor of the distance between the phases and distance from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear. Applications with lower voltages and lower fault levels have lower energy levels. Electricians working on distribution boards in various factories, mining and industries with lower voltage applications are not free from arc flash occurrences. Although lower voltages are less likely to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The 8 APTV CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 8 CAL Jackets and trousers are available in both two piece and one piece. APTV 8 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited. 1000v boots provide the insulation for live work conditions and a bag holds all the equipment together. Components of the APTV 8 CAL ARC Flash suit 3) APTV 8 CAL gloves 4a) APTV 8 CAL Headkit 6) APTV 8 CAL Kitbag 1) APTV 8 CAL Jacket & Pants 2) APTV 8 CAL One piece 4b) APTV 8 CAL Headkit (with light) 5) 1000v Insulated boots HRC 1, is the clothing required for low voltage ( under 1000v ) environments. The APTV 8 CAL kit comes with a kit bag and includes the following pieces APTV 8 CAL (Kit comprises of the following items : (individual items can also be sold separately) : 1) APTV 8 CAL Jacket. 2) APTV 8 CAL Trousers. Or APTV 8 CAL Coverall. 3) APTV 8 CAL (gloves) 4) APTV 8 CAL (Headkit) 5) Insulated boots (1000v) 6) Kit bag

12 Switching safety kits also can include the following for voltages up to 36kv : 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv 8) Insulated rubber platforms

13 Category HRC 2 - ARC Flash suits Kits APTV 12 CAL/cm ² ARC Flash clothing APTV 12 CAL/cm2 fall into category HRC 2 arc flash protection. Electrical applications below 1000 volts. Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor of the distance between the phases and distance from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear. Applications with lower voltages and lower fault levels have lower energy levels. Electricians working on distribution boards in various factories, mining and industries with lower voltage applications are not free from arc flash occurrences. Although lower voltages are less likely to jump across phases, when these do occur the arc flash can be just as severe and harmful as higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The 12 CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 12 CAL Jackets and trousers are available in both two piece and one piece. APTV 12 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited. 1000v boots provide the insulation for live work conditions and a bag holds all the equipment together. Components of the APTV 12 CAL ARC Flash suit 1) APTV 12 CAL Jacket & Pants 2) APTV 12 CAL One piece 3) APTV 12 CAL gloves 4) APTV 12 CAL Headkit 5) 1000v Insulated boots APTV 12 CAL Kitbag Class HRC 2, is the clothing required for low voltage ( under 1000v ) environments. The APTV 12 CAL kit comes with a kit bag and includes the following pieces APTV 12 CAL (Kit comprises of the following items : ( however individual items can be sold separately) : 1) APTV 12 CAL Jacket. 2) APTV 12 CAL Trousers. (r APTV 8 CAL Coverall.) 3) APTV 12 CAL Gloves. 4) APTV 12 CAL Headkit. 5) Insulated boots (1000v) 6) Kit bag

14 Switching safety kits also can include the following for voltages up to 36kv : 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 10) High voltage platform <45kv 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv 12) Insulated rubber gloves Class 0 Class 4 (36kv)

15 Category HRC 3 - ARC Flash suits Kits APTV 25 CAL/cm ² Application : ARC Flash clothing APTV 25 CAL/cm2 fall into category HRC 3 arc flash protection. Electrical applications above 1000 volts with low to medium risk energy levels Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor of the distance between the phases and distance from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear. Applications with medium voltages and lower fault levels have lower energy levels. Electricians working on distribution boards in various factories, mining and industries with medium voltage applications are not free from arc flash occurrences. Although lower voltages are less likely to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The APTV 25 CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 25 CAL Jackets and trousers are available in only two piece. APTV 25 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited v boots provide the insulation for live work conditions and a bag holds all the equipment together. Components of the APTV 25 CAL ARC Flash suit Standards : SANS 724 NFPA 70E IEC APTV 25 CAL (Hood) APTV 25 CAL (Hood) APTV 25 CAL (Jacket) APTV 25 CAL Kitbag APTV 25 CAL (Jacket & Pants)

16 Switching safety kits also can include the following for voltages up to 36kv : 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 10) High voltage platform <45kv 12) Insulated rubber gloves Class 0 Class 4 (36kv) 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv

17 Category HRC 4 - ARC Flash suits Kits APTV 40 CAL/cm ² ARC Flash clothing APTV 40 CAL/cm2 fall into category HRC 4 arc flash protection. Medium voltage applications with significant electrical energy levels. Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor of the distance between the phases and distance from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear. Electricians working on distribution boards in various substations, factories and mines switchgear with medium voltage applications are at risk from arc flash occurrences. Medium voltages have the necessary potential to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The APTV 40 CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 40 CAL Jackets and trousers are available in only two piece. APTV 40 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited v boots provide the insulation for live work conditions and a bag holds all the equipment together. Components of the APTV 40 CAL ARC Flash suit Standards : SANS 724 NFPA 70E IEC APTV 40 CAL gloves APTV 40 CAL (Jacket) APTV 40 CAL Hood. APTV 40 CAL Hood. (Ventilated) APTV 40 CAL Kit bag 20KV Live working boot 300 º C Temperature. EN ISO APTV 40 CAL (Ventilated Hood option) A ventilated hood operates from a rechargeable battery pack. The ventilated hood provides a cooling option for the heavier suits which are hotter units.

18 Switching safety kits also can include the following for voltages up to 36kv : 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 12) Insulated rubber gloves Class 0 Class 4 (36kv) 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv 10) High voltage platform <45kv ARC Flash safety should be accompanied by medium voltage insulated products when switching in on live equipment. Insulated safety products prevent the voltage from passing through the operator.

19 Category HRC 4 - ARC Flash suits Kits APTV 51.5 CAL/cm ² ARC Flash clothing APTV 51.5 CAL/cm2 fall into category HRC 4 arc flash protection. Medium voltage applications with significant electrical energy levels. Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor of the distance between the phases and distance from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear. Electricians working on distribution boards in various substations, factories and mines switchgear with medium voltage applications are at risk from arc flash occurrences. Medium voltages have the necessary potential to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The APTV 51.5 CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 51.5 CAL Jackets and trousers are available in only two piece. APTV 51.5 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited v boots provide the insulation for live work conditions and a bag holds all the equipment together. Standards : SANS 724 NFPA 70E IEC Components of the APTV 51.5 CAL ARC Flash suit APTV 50 CAL (Jacket) APTV 51.5 CAL gloves APTV 50 CAL (Hood) APTV 51.5 CAL (Jacket & Pants) 20KV Live working boot 300 º C Temperature. EN ISO APTV 50 CAL (Ventilated Hood) APTV 50 CAL (Ventilated Hood option) A ventilated hood operates from a rechargeable battery pack. The ventilated hood provides a cooling option for the heavier suits which are hotter units. APTV 51.5 CAL Kitbag

20 Switching safety kits also can include the following for voltages up to 36kv : 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 8) Insulated rubber platforms 10) High voltage platform <45kv 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv 12) Insulated rubber gloves Class 0 Class 4 (36kv) ARC Flash safety should be accompanied by medium voltage insulated products when switching in on live equipment. Insulated safety products prevent the voltage from passing through the operator.

21 Category HRC 4 - ARC & Oil Flash suits Kits APTV 60 CAL/cm ² Application : High voltage electrical ARC Flashsuit protection. Electricians that work do maintenance on OCB (Oil circuit breakers) and other HV switchgear are at risk to electrical ARC flash and hot oil. These suits protect from ARC Flash temperature. Product : 60 CAL/cm2 ( Heat, Liquid and chemical proof). Description : Arc Flash protection HRC4, APTV 60 CAL/cm ² (Liquid and chemical proof). One piece hood, large viewing protective lens attached to an internal dielectric hard hat. APTV rating is indicated on Hood A ventilated hood is available on request Colour : Orange Material : FR Polymer coated aramid. Inner fabric : Permanently flame resistant Ultrasoft with additional thermal insulation Hazard protection: Thermal effects from electrical arc flash can cause heat that are in excess of C. This would cause clothing to melt and cause burning and injury to the electrician. Presence of hot and corrosive liquids. Flammable transformer oil. Features : ARC rated at 60 CAL/cm2. Protection from hot and burning transformer/switchgear oil. Insulation from excessive heat loads on the hood surface. Liquid, chemical and oil resistant FR fabric with sealed seams. Both outer and inner fabrics guaranteed FR for the life of the hood. Inner liner has breathe ability, moisture/sweat absorption and dissipating qualities. Water washable at home or industrial laundries. Standards : SANS 724 NFPA 70E IEC Standards : ASTM F2733, NFPA 70E, ASTM F1891, ASTM F903, ASTM F1959, ASTM1930, IEC Hood : ASTM F ATPV values the higher the value, the more insulated one is from second degree burn. HAF Heat Attenuation Factor. The higher the HAF%, the more the heat is blocked by the fabric.

22 Switching safety kits also can include the following for voltages up to 36kv : ARC Flash safety should be accompanied by medium voltage insulated products when switching in on live equipment. Insulated safety products prevent the voltage from passing through the operator. \ 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 10) High voltage platform <45kv 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv 12) Insulated rubber gloves Class 0 Class 4 (36kv)

23 Category HRC 4 - ARC Flash suits Kits APTV 90 CAL/cm ² ARC Flash clothing APTV 90 CAL/cm2 fall into category HRC 4 arc flash protection. Medium voltage applications with high electrical energy levels. Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor of the distance between the phases and distance from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear. Electricians working on distribution boards in various substations, factories and mines switchgear with medium voltage applications are at risk from arc flash occurrences. Medium voltages have the necessary potential to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The APTV 90 CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 90 CAL Jackets and trousers are available in only two piece. APTV 90 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited v boots provide the insulation for live work conditions and a bag holds all the equipment together. Components of the APTV 90 CAL ARC Flash suit Standards : SANS 724 NFPA 70E IEC APTV 90 CAL (Hood) APTV 90 CAL (Hood) APTV 90 CAL (Jacket) APTV 90 CAL Kitbag APTV 90 CAL (Jacket & Pants) 30KV Live working boot 300 º C Temperature. EN ISO 20345

24 Category HRC 4 - ARC Flash suits Kits APTV 100 CAL/cm ² ARC Flash clothing APTV 100 CAL/cm2 fall into category HRC 4 arc flash protection. Medium voltage applications with very high electrical energy levels. APTV 100 CAL/cm2 ARC Flashsuits are used in high energy applications, where higher voltages occur with higher fault levels are experienced. The 100 CAL suit provides greater protection from the heat generated electrical ARC s generated from. ( Voltages such as 6.6kv, 11kv, 24kv, 36kv) ATPV values the higher the value, the more insulated one is from second degree burn. HAF Heat Attenuation Factor. The higher the HAF%, the more the heat is blocked by the fabric. The more layers the fabric has ( layers) the greater the protection from shrapnel. Arc flashes occur when electricity jumps across the phases and cause a short circuit and subsequent flash. Arc flash occurrences are a factor of the distance between the phases and distance from the source ( transformer), the circuit breakers trip time, the available short circuit current, dirt buildup in the equipment which may affect the conductive path, moisture (humidity), circuit supply voltage, amount of motor contribution during a fault, indoor versus outdoor applications and the distance of the operator from the switchgear. Applications with medium voltages and medium fault levels have significant energy levels. Electricians working on distribution boards in various factories, mining and substations with medium voltage applications are at risk from arc flash occurrences. Medium voltages have the necessary potential to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The APTV 100 CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 100 CAL Jackets and trousers are available in only two piece. APTV 100 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited v boots provide the insulation for live work conditions and a bag holds all the equipment together.

25 Standards : SANS 724 NFPA 70E IEC Components of the APTV 100 CAL ARC Flash suit APTV 100 CAL gloves APTV 100 CAL Hood. APTV 100 CAL Kitbag APTV 100 CAL (Jacket & Pants) APTV 100 CAL (Ventilated Hood option) A ventilated hood operates from a rechargeable battery pack. The ventilated hood provides a cooling option for the heavier suits which are hotter units. 30KV Live working boot 300 º C Temperature. EN ISO 20345

26 Switching safety kits also can include the following for voltages up to 36kv : 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 8) Insulated rubber platforms 10) High voltage platform <45kv 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv 12) Insulated rubber gloves Class 0 Class 4 (36kv) ARC Flash safety should be accompanied by medium voltage insulated products when switching in on live equipment. Insulated safety products prevent the voltage from passing through the operator.

27 Category HRC 4 - Arc flash suit kits APTV 140 CAL/cm ² ARC Flash clothing APTV 140 CAL/cm2 fall into category HRC 4 arc flash protection. Medium voltages with extremely high energy levels. The APTV 140 CAL suit offers greater ballistic protection from projectile and shrapnel. When Arc flashes occur at higher energy levels, light and heat energy can be accompanied by fragments of the conductor which become airborne. These fragments travel at great speeds and can cause great harm to the electrician. ATPV values the higher the value, the more insulated one is from second degree burn. HAF Heat Attenuation Factor. The higher the HAF%, the more the heat is blocked by the fabric. Electricians working on distribution boards in substations and switchboards with medium voltage applications are at risk from arc flash occurrences. Higher voltages have the necessary potential to jump across phases, when these do occur the arc flash can be just as severe and harmful a higher voltages when the conditions allow. To provide adequate protection, the electrician should be protected from head to toe. The APTV 140 CAL headkit has a tinted visor that protects from thermal effects, conductor shrapnel and blinding light generated from the arc. APTV 90 CAL Jackets and trousers are available in only two piece. APTV 140 CAL Gloves are designed to provide maximum dexterity so that the electrician s work is not inhibited v boots provide the insulation for live work conditions and a bag holds all the equipment together. Components of the APTV 140 CAL ARC Flash suit APTV 140 CAL (Gloves) APTV 140 CAL (Hood) APTV 140 CAL (Bag) APTV 140 CAL (Jacket & Pants) 30KV Live working boot 300 º C Temperature. EN ISO 20345

28 Switching safety kits also can include the following for voltages up to 36kv : APTV 140 ARC Flashsuit 7) Insulated rescue sticks < 45kv 8) Insulated rubber mats < 45kv 9) High voltage capacitor < 45v 8) Insulated rubber platforms 10) High voltage platform <45kv 11) Switching Insulated solid sticks 1.8m = 132kv 2.4m = 132kv 12) Insulated rubber gloves Class 0 Class 4 (36kv) ARC Flash safety should be accompanied by medium voltage insulated products when switching in on live equipment. Insulated safety products prevent the voltage from passing through the operator.