ASTM F496 PDF

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ASTM F Standard Specification for Leather Protectors for Rubber Insulating Gloves and Mittens. ASTM F Standard Specification for In-Service Care of. ASTM F - Download as PDF File .pdf), Text File .txt) or read online. ASTM F ASTM F xx. (Insulating Blankets). • ASTM F xx. (Insulating Gloves & Sleeves) where xx refers to the year that the standard specification was most.


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This standard is issued under the fixed designation F; the number immediately 1 This specification is under the jurisdiction of ASTM Committee F18 on. described in ASTM F , Specification for In-Service Care of Insulating Gloves and As stated in ASTM specifications for In-Service Care and Use of Rubber. Fa Standard Specification for In-Service Care of Insulating Gloves and Sleeves insulating Standard + Redline PDF Bundle ASTM License Agreement.

Rubber insulating gloves, and their leather covers, must be paired correctly in order to protect every worker. These products are what separate your body from potentially deadly electricity. Proper pairing is critical! Rubber Gloves The first step is to figure out what class you need for your rubber gloves. On the chart below ASTM Labeling Chart link below , find the voltage that you will be working with and look to the left for the correct class. Each class is color coded for easy identification. For example, in the picture below the gloves have a red label, which means that they are class 0 gloves.

Immerse the sleeve, with the cuff end first, into the water until the cuff end is below the interface between the two liquids, to a depth required to provide the flashover clearance shown in Table 3. The dielectric liquid separates and electrically insulates the inside water electrode from the outside water electrode. This mounting may be used for all voltages, both ac and dc.

NOTE 6—Some dielectric liquids are toxic in nature and therefore proper precautionary measures shall be followed.

One satisfactory dielec- tric liquid is trichlorotrifluoroethane Dielectric Grade. The rubber sleeve FIG. Repeated testing may result in loss of dielectric tank see Fig. The test equipment holding or supporting the strength due to water dielectric mixing, so separation time or other means sleeve under test should be of such design that there is minimal may be needed.

Care should be taken to prevent the sleeves from folding stress created in the sleeve material. Place a rod or pipe across back out of the dielectric liquid. Hanger systems may be obtained from the top surface of the sleeve at approximately the midpoint most test equipment manufacturers to facilitate the hammock mounting between the cuff and underarm edge.

The pipe or rod shall be method. This device shall provide a tight, leakproof seal at the the sleeve. Fill the sleeve with water and immerse the sleeve to cuff and a high dielectric medium to separate and electrically the test position, allowing for proper flashover clearance for the isolate the inside water electrode from the outside water test voltage used.

In so far as practical, the water levels should electrode. The sleeve to be tested is then filled with water to be the same both on the inside and outside of the sleeve, and meet the clearance requirements of Table 3. The test arrange- the top of the shoulder area, the top of the underarm, and the ment shall provide that the sleeve stay essentially straight. This cuff edge are equidistant above the water line see Fig. Particular care shall be taken to avoid any sharp folds or areas of stress in the sleeve, as they may cause premature dielectric breakdown or ozone cutting, or both, at these points see Note 5.

Also read: ASTM E1886 PDF

For versatility in testing electrodes and masking may be used to retest sleeves as in Fig. Use a grounded plate as the table. Place a 3. This method should not be used for ac testing of thick wet sponge or wet felt in the hole as the ground contact.

Type I sleeves because of potential ozone generation. Place a second 3.

F496 pdf astm

Place a mm 2. This inside sponge 7. Then place the a sinusoidal wave over the upper half of the range of the test sleeve encasing the sponge in position on the wet felt or sponge voltage.

Place an ozone-resistant 7. Cutouts and electrodes can be made in multiples to test voltmeter used in conjunction with a calibrated instrument more than one sleeve at a time See 7. To ensure the continued the electrodes consist of two electrically conductive plates or accuracy of the test voltage, as indicated by the test equipment shapes, constructed to conform closely to the inside and voltmeter, calibrate the test equipment at least annually, in outside of the sleeve.

Round any edges on these shapes so as to accordance with Practice D Draw the sleeve 7. It is recommended that the voltage be measured by the use of a dc meter connected in series with appropriate high-voltage-type resistors across the high-voltage circuit.

ASTM F496-14a

The accuracy of the voltage-measuring circuit shall be within 61 kV of the test voltage. Calibrate the test equipment at least annually, in accordance with Practice D Start the be used but returned to an electrical testing facility for test period at the instant that the prescribed testing voltage is inspection and retest.

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Gloves or sleeves shall not be bundled reached. Unless an electrical puncture has already by the wearer for defects. Gloves shall be air-tested before use occurred, the applied voltage should be reduced to at least half value at the each day and at other times if there is cause to suspect any Copyright by ASTM Int'l all rights reserved ; Tue Jun 3 EDT 6 Universidad Del Valle pursuant to License Agreement.

They shall be inspected over the entire surface and defects that affect their ability to give mechanical protection to shall be rolled gently between the hands to expose defects and the insulating gloves.

Care should be exercised to keep the imbedded materials. Protector gloves that become contaminated with inju- entrapped inside the glove, or by using a mechanical inflator.

F496 pdf astm

The glove shall be examined for punctures and other they have been thoroughly cleansed of the contaminating defects. Puncture detection may be enhanced by listening for substance. Under twice the normal size. Type II—No part of the glove or sleeve shall be stretched more than the same conditions, Class 00 gloves may be used without 1.

Other classes of gloves may be used without grease, or other damaging substances as soon as practicable. The dielectric liquid separates and electrically insulates the inside water electrode from the outside water electrode.

This mounting may be used for all voltages, both ac and dc. NOTE 6—Some dielectric liquids are toxic in nature and therefore proper precautionary measures shall be followed.

One satisfactory dielec- tric liquid is trichlorotrifluoroethane Dielectric Grade. The rubber sleeve FIG. Repeated testing may result in loss of dielectric tank see Fig.

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The test equipment holding or supporting the strength due to water dielectric mixing, so separation time or other means sleeve under test should be of such design that there is minimal may be needed. Care should be taken to prevent the sleeves from folding stress created in the sleeve material.

Place a rod or pipe across back out of the dielectric liquid. Hanger systems may be obtained from the top surface of the sleeve at approximately the midpoint most test equipment manufacturers to facilitate the hammock mounting between the cuff and underarm edge.

The pipe or rod shall be method. This device shall provide a tight, leakproof seal at the the sleeve. Fill the sleeve with water and immerse the sleeve to cuff and a high dielectric medium to separate and electrically the test position, allowing for proper flashover clearance for the isolate the inside water electrode from the outside water test voltage used.

In so far as practical, the water levels should electrode. The sleeve to be tested is then filled with water to be the same both on the inside and outside of the sleeve, and meet the clearance requirements of Table 3.

The test arrange- the top of the shoulder area, the top of the underarm, and the ment shall provide that the sleeve stay essentially straight. This cuff edge are equidistant above the water line see Fig.

Particular care shall be taken to avoid any sharp folds or areas of stress in the sleeve, as they may cause premature dielectric breakdown or ozone cutting, or both, at these points see Note 5.

F496 pdf astm

For versatility in testing electrodes and masking may be used to retest sleeves as in Fig. Use a grounded plate as the table. Place a 3. This method should not be used for ac testing of thick wet sponge or wet felt in the hole as the ground contact. Type I sleeves because of potential ozone generation. Place a second 3.

ASTM F496-14

Place a mm 2. This inside sponge 7. Then place the a sinusoidal wave over the upper half of the range of the test sleeve encasing the sponge in position on the wet felt or sponge voltage. Place an ozone-resistant 7. Cutouts and electrodes can be made in multiples to test voltmeter used in conjunction with a calibrated instrument more than one sleeve at a time See 7. To ensure the continued the electrodes consist of two electrically conductive plates or accuracy of the test voltage, as indicated by the test equipment shapes, constructed to conform closely to the inside and voltmeter, calibrate the test equipment at least annually, in outside of the sleeve.

Round any edges on these shapes so as to accordance with Practice D Draw the sleeve 7. It is recommended that the voltage be measured by the use of a dc meter connected in series with appropriate high-voltage-type resistors across the high-voltage circuit.

The accuracy of the voltage-measuring circuit shall be within 61 kV of the test voltage. Calibrate the test equipment at least annually, in accordance with Practice D Start the be used but returned to an electrical testing facility for test period at the instant that the prescribed testing voltage is inspection and retest. Gloves or sleeves shall not be bundled reached. Unless an electrical puncture has already by the wearer for defects.

F496 pdf astm

Gloves shall be air-tested before use occurred, the applied voltage should be reduced to at least half value at the each day and at other times if there is cause to suspect any Copyright by ASTM Int'l all rights reserved ; Tue Jun 3 EDT 6 Universidad Del Valle pursuant to License Agreement. They shall be inspected over the entire surface and defects that affect their ability to give mechanical protection to shall be rolled gently between the hands to expose defects and the insulating gloves.

Care should be exercised to keep the imbedded materials. Protector gloves that become contaminated with inju- entrapped inside the glove, or by using a mechanical inflator. The glove shall be examined for punctures and other they have been thoroughly cleansed of the contaminating defects. Puncture detection may be enhanced by listening for substance. Under twice the normal size.

Type II—No part of the glove or sleeve shall be stretched more than the same conditions, Class 00 gloves may be used without 1.

Other classes of gloves may be used without grease, or other damaging substances as soon as practicable. Excess water should be removed by being shaken out and the voltage exposure.