Presentation on theme: ": Electrical Protective Equipment"— Presentation transcript:
11910.137: Electrical Protective Equipment Region IV - OSHA
21910.137(a): Design Requirements Manufacture and MarkingClass of equipment (0, 1, 2, 3, or 4)Type of equipment (I or II)Class:kV (not addressed by standard)0 – 1kV Use Voltage, 5kV Test voltage1 – 7.5kV Use Voltage, 10kV Test voltage2 – 17kV Use Voltage, 20kV Test voltagekV Use Voltage, 30kV Test voltage4 - 36kV Use Voltage, 40kV Test voltageType:I - Natural materialsII - Man-made materials
3Class Label Class 4 - Designed to insulate up to 40,000 volts. Type II - Is molded from man-made materials.
4Rubber Insulating Matting Rubber matting for floor covering around electrical apparatus
5Rubber Insulating Blanket Look for Identification & test markingsBlack blankets are Type I – natural rubber (For Bashlin only)Orange blankets are Type II – Ozone Resistant synthetic (For Bashlin only)
121910.137(b): In-service Care and Use Maximum use voltage to conform to Table I-5.Equipment damage inspection:No holes, tears, cuts, or punctures; no ozone cutting or checking; no embedded foreign objects; no swelling, softening, hardening, etc.Class:kV (not addressed by standard)0 - 1kV Use Voltage, 5kV Test voltagekV Use Voltage, 10kV Test voltage2 - 17kV Use Voltage, 20kV Test voltagekV Use Voltage, 30kV Test voltage4 - 36kV Use Voltage, 40kV Test voltage
13Ozone DamageSevere ozone damage caused by stretching over top of primary
14Ozone DamageDamage caused when gloves are kept in an inside-out position for a long period of time
15Cut in blanketSharp gaffs often cause crescent-shaped cuts in blankets
161910.137(b)(2)(ii): Air Testing of Rubber Gloves Rubber glove air test demonstration
171910.137(b)(2)(ii): Air Testing of Rubber Gloves
181910.137(b)(2)(viii): Rubber Insulating Equipment Test Intervals When to TestLine hosesInsulation suspectCovers* BlanketsEvery 12 months* GlovesEvery 6 months* Sleeves* Before first issuance
19Glove Protector Class Gap 1” 1 2 2” 3 3” 4 4” 1”122”33”44”ASTM Specifications, the minimum distance between the edge of the lineman’s glove cuff and the protector glove is 1”/10KVMinimum gap distance between glove & protector, by Class:0 – 1” (1kV Use Voltage, 5kV Test voltage)1 – 1” (7.5kV Use Voltage, 10kV Test voltage)2 – 2” (17kV Use Voltage, 20kV Test voltage)3 - 3” (26.5kV Use Voltage, 30kV Test voltage)4 - 4” (36kV Use Voltage, 40kV Test voltage)
20Leather ProtectorLeather Protector glove worn without rubber gloves.