EN
ZHEN 362:2004 Connectors
Connectors come in a variety of shapes and sizes for different applications and are used to connect components together within a fall protection system.
Major / Minor Axis Static Strength
The major axis tests a connector in the main direction of loading. The load required depends on the connectors class – see below table. Many connectors claim a higher rated load on the major axis than the minimum within the standard and for the purposes of certification are required to show evidence that this higher load can be sustained for 3 minutes also.
The minor axis test is applicable to connectors where it is possible for them to be loaded in the opposite direction to the Major axis. The test is to ensure that should the connector be accidentally loaded or misused across the minor axis, then it still has strength to take the forces generated in a fall.
| Description | Major axis Gate closed and unlocked (kN) | Major axis Gate closed and locked (kN) | Minor axis Gate closed (kN) |
|---|---|---|---|
| Basic connector (class B) |
15 | 20 | 7 |
| Multi-use connector (class M) |
15 | 20 | 15 |
| Termination connector (class T) |
15 | 20 | N/A |
| Anchor connector (class A) |
15 | 20 | N/A |
| Screwlink connector (class Q) |
N/A | 25 | 10 |
Gate Function
This test loads the major axis of a connector to a force of 6kN (excludes class A connectors). The connector is required to hold this force for 10 seconds and then be able to open, close and lock the gate
Gate Resistance (Face / Side)
The gate face test is carried out on connectors by applying a force directly to the gate of 1kN for 90 seconds. During the test the gate cannot separate from the latch by more than 1mm and following the test the gate should still function correctly
The gate side test is carried out on connectors by applying a force directly on the side of the gate of 1.5kN for 60 seconds. There shall be nor partial fracture of the connector and following the test the gate shall still function correctly
Corrosion Resistance
Metallic components used in fall protection equipment are subjected to a neutral salt-spray test intended to prove a minimum resistance to environmental corrosion (specifically rust). Products are held within a sealed chamber, which is filled with a salt-water mist, which can induce rust in unprotected metals. Products are subjected to 48 hours exposure and examined for rusting and function afterward.