1910.137: Electrical Protective Equipment

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1910.137 Electrical Protective Equipment

• Region IV - OSHA

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1910.137(a)Design Requirements

• Manufacture and Marking
• Class of equipment (0, 1, 2, 3, or 4)
• Type of equipment (I or II)

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Class Label

• Class 4 - Designed to insulate up to 40,000
  volts.
• Type II - Is molded from man-made materials.

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Rubber Insulating Matting
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Rubber Insulating Blanket
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Blanket Clamps
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Rubber insulating sleeves
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Rubber insulating sleeves

• Identification markings

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Rubber insulating sleeves

• Test markings

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Rubber Insulating GloveTest Sticker
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Rubber insulating gloves

• Identification markings

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1910.137(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.

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Ozone Damage

• Severe ozone damage caused by stretching over top
  of primary

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Ozone Damage

• Damage caused when gloves are kept in an
  inside-out position for a long period of time

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Cut in blanket

• Sharp gaffs often cause crescent-shaped cuts in
  blankets

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1910.137(b)(2)(ii)Air Testing of Rubber Gloves
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1910.137(b)(2)(ii) Air Testing of Rubber Gloves
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1910.137(b)(2)(viii) Rubber Insulating
Equipment Test Intervals
Equip. When to Test
Line hoses Insulation suspect
Covers Insulation suspect
Blankets Every 12 months
Gloves Every 6 months
Sleeves Every 12 months
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Glove Protector
Class Gap
0 1
1 1
2 2
3 3
4 4
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Leather Protector

• Leather Protector glove worn without rubber
  gloves.

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Rubber Glove Storage
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Rubber Glove Liners
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Glove Dust
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Rubber Blanket Field Testing

• Field testing of rubber blanket with cover gear
  tools on tarp.

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Insulating Line Hoses
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Insulator Cover