​WHAT IS EN 353-2:2002?

​WHAT IS EN 353-2:2002?

Posted by Helen Wood on behalf of Pressure Pump Solutions Ltd on 20th Dec 2021

WHAT IS EN 353-2:2002?

PERFORMANCE REQUIREMENTS AND TEST METHODS FOR GUIDED TYPE FALL ARRESTERSEN353-2

RELATES TO SYSTEMS MADE UP OF A LINE INTENDED TO BE USED (EITHER TEMPORARILY OR PERMANENTLY) TO A STRUCTURE AT THE TOP ONLY, ON WHICH A TRAVELLING DEVICE IS ATTACHED.
THE USER CONNECTS TO THIS TRAVELLING DEVICE WHEN CLIMBING OR DESCENDING – IN THE CASE OF A FALL, THE TRAVELLING DEVICE SHOULD GRIP THE LINE AND ARREST THE FALL.

THERE ARE 4 MAIN PERFORMANCE TESTS IN EN353-2

DYNAMIC PERFORMANCE

A drop test is performed on guided type fall arresters using a 100 kg load that is dropped over the greatest distance the device will allow - essentially raising the mass until the travelling device begins to slide up the cable or rail. The device should not extend beyond a maximum length of 1 metre with a maximum arrest force of 6 kN (due to movement of the travelling device, rope stretch, or release of energy absorbing devices).


LOCKING AFTER CONDITIONING

Additional testing is required for mechanical devices to ensure that they are not adversely affected by ambient conditions:
• Following conditioning to high temperature (50°C, 85 percent relative humidity for at least 2 hours),
• cold temperature (-30°C for at least 2 hours),
• and water, devices are tested for their locking function (by dropping a mass of at least 5 kg) (sprayed at 70 litres per hour for at least 3 hours).
• Testing after being submerged in diesel oil or dust is also an option.

CORROSION RESISTANCE
A neutral salt-spray test is performed on metallic components used in fall prevention devices to demonstrate a minimum resistance to environmental corrosion (specifically rust). Products are kept in a sealed chamber that is filled with a salt-water mist that might cause rust on exposed metals. After 24- or 48-hours of exposure, the products are inspected for corrosion and functionality.

STATIC STRENGTH

Tensile testing are performed on the entire product. Lanyards made of textile are subjected to a 15 kN tensile force, whereas metal lanyards are subjected to a 12 kN tensile force. To ensure that the product's breaking strength exceeds the force prescribed by the standard, tensile pressures are applied and held for at least 3 minutes.

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