Using rainwear as switching jackets: a reasonable solution for electric arc exposure

Hoagland, Hugh; Morrow, B.

doi:10.1109/28.871270

Cited by 15 publications

(4 citation statements)

References 3 publications

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“…[2] The ASTM F18 Committee began work on a rainwear standard in the early 1990's. The resulting F1891 standard is now the only international standard specifying which flame resistant rainwear is useful for electric arc protection.…”

Section: Standards For Arc Rated Materialsmentioning

confidence: 99%

Arc flash PPE research update

Hoagland¹

2012

2012 IEEE IAS Electrical Safety Workshop

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PPE exposed to arc flash is not always designed for arc flash exposures. This paper discusses the critical PPE rated for arc flash exposures for electrical workers and the test methods employed for those ratings. It also further explores other PPE which is frequently exposed to arc flash but which is not arc-rated. The purpose of the paper is to provide some guidelines on proper use and dangers posed by using the improper materials in arc flash exposures until standards have caught up with the state of the art research.Index Terms -NFPA 70E, ASTM, NESC, electrical safety, arc flash training, arc flash, arc blast, PPE, personal protective equipment, IEEE, IEC, ISO, incident energy, ATPV, arc thermal performance value, energy breakopen threshold, EBT, arc flash hood, arc flash suit, arc rated rainwear, hairnets, beardnets, arc rated bras, arc rated underwear, balaclava, sock hood.

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Section: Standards For Arc Rated Materialsmentioning

confidence: 99%

Arc flash PPE research update

Hoagland¹

2012

2012 IEEE IAS Electrical Safety Workshop

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“…"All-textile" literally means that the antenna radiator, ground and substrate are composed of textile materials. More specifically, a flexible and restorable neoprene substrate [17] is sandwiched between the conductive-ink-printed polystyrene fabrics, as shown in Figure 1a. The inset photo also shows the integration mechanism onto existing non-conductive clothing.…”

Section: Introductionmentioning

confidence: 99%

An All-Textile Dual-Band Antenna for BLE and LoRa Wireless Communications

et al. 2021

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In this paper, a dual-band conductive textile-based wearable antenna operating at LoRa-868 MHz and BLE-2.4 GHz is presented. The proposed antenna is intended for accurate geolocation, tracking and communication applications in the military, industrial and telemedicine industries. The low-profile patch antenna is suitable for integrating into clothing. It is composed of three textile layers: top and bottom silver-ink-printed polystyrene fabrics, and a neoprene substrate. To utilize the flexible and restorable properties of these textile materials, the proposed antenna is directly fed by a flexible cable using an aperture-coupled feeding technique. This method not only eliminates the use of the conventional, bulky, and metallic SMA connector but also introduces a secondary resonance at 2.4 GHz, enabling the dual-band property. Using a thin coaxial cable fixed on the aperture slot for proximity coupling, a compact antenna size of 150 mm2 is obtained that can easily be attached and detached on existing cloths. The proposed structure has been fabricated and measured in an anechoic chamber to verify the performance. Measured gain of 3.28 dBi and 3.25 dBi was realized for LoRa and BLE at an antenna size of 0.61 λg × 0.61 λg × 0.012 λg (where λg is guided wavelength at 868 MHz) with a front-to-back ratio (FBR) of greater than 10 dBi.

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“…23 used meta-aramid fiber, FR viscose fiber, para-aramid fiber, and conductive fiber as primary materials to make blended fabrics with different proportions and predicted the protective performance using mathematical models. Hoagland and Morrow 24 found that compared with conventional meta-aramid fabrics, neoprene/meta-aramid fabrics and PVC/meta-aramid/para-aramid blended fabrics have better arc protective performance, but their costs have also increased. In addition, Hoagland et al.…”

mentioning

confidence: 99%

“…In terms of studying the influence of material parameters on arc protective performance, Zhu et al 23 used meta-aramid fiber, FR viscose fiber, para-aramid fiber, and conductive fiber as primary materials to make blended fabrics with different proportions and predicted the protective performance using mathematical models. Hoagland and Morrow 24 found that compared with conventional meta-aramid fabrics, neoprene/metaaramid fabrics and PVC/meta-aramid/para-aramid blended fabrics have better arc protective performance, but their costs have also increased. In addition, Hoagland et al 25 studied the effects of industry contaminants, including diesel fuel, dry lime, nickel dust, palladium dust, sodium hydroxide slurry, carbon black dust, dry and wet cement, a flocculent slime, hydraulic fluid, and transformer oil on the performance of electric arc clothing.…”

mentioning

confidence: 99%

Comparative analysis of polyimide and aramid fabrics as arc protective materials

Duan

Yue

et al. 2023

Textile Research Journal

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Arc explosion accidents in live working seriously threaten the safety of power workers. At present, the mainstream arc protective clothing material is aramid and blends of aramid. However, aramid will produce toxic gas under high temperature combustion, which is harmful to the health of operators. Therefore, it is a special challenge to study fabrics that are friendly to the human body and have a highly protective performance to protect electrical workers. Polyimide is nontoxic and has excellent high temperature resistance, flame retardation, and mechanical properties. In this paper, polyimide was proposed to be used as an arc protective clothing material. In order to explore the feasibility of polyimide in the field of arc protection, molecular dynamics simulation was used to compare the heat resistance of polyimide and aramid in terms of bond order and glass transition temperature. Referring to ASTM F1959 and IEC 61482-1-1, an arc test apparatus was built to test the protective properties of materials. The protection failure mechanism was analyzed by comparing the safety protective performance of polyimide and aramid fabric under the arc. It was found that polyimide has better arc thermal protective performance and break open threshold. The simulation and test results show that polyimide can be used as a material for arc protective clothing to improve protective performance.

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Using rainwear as switching jackets: a reasonable solution for electric arc exposure

Cited by 15 publications

References 3 publications

Arc flash PPE research update

Arc flash PPE research update

An All-Textile Dual-Band Antenna for BLE and LoRa Wireless Communications

Comparative analysis of polyimide and aramid fabrics as arc protective materials

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