Line hose and covers are required to be tested when insulating value is suspect of damage, blankets should be tested before first use and every 12 months after.
Insulated Rubber & Plastic comes in the following Classes 0, 1, 2, 3, 4.
There are two types of rubber produced when making line hoses and blankets:
Type 1: nonresistant to ozone, made from high-grade rubber compound of natural or synthetic origin, properly vulcanized
Type 2: ozone resistant, made of any elastomer or combination of elastomeric compounds
Cleaned by hand in wash tank with approved detergent & air dried
Inspection of rubber for cuts, punctures, foreign objects (metal filings, wood slivers)
Insulated rubber & plastic cover up is tested at 1 minute based on its classification. Example Class 2 rubber or plastic is a 1 minute test at 20,000 volts. A pass for the electrical test would be no flash over through rubber or plastic equipment.
Electrical failure in blankets particularly class 4.
Pole covers and lines hoses have a low rate of failure and typically only fail when a hole is present from mechanical damage.
Visual inspection of blanket before use, keep rubber/plastic goods off ground, clean off rubber/plastic goods if it becomes contaminated (oil, mud, etc.) with cleaning product.
Insulated rubber and plastic goods should be stored in plastic or cloth and have a designated storage spot.
Do not Fold (Blankets)
Do not place any objects on top (Blankets)
Store in relaxed or normal position (Line hose)
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