T/ZJGS 11-2020 Round locknut

Scope

Main Technical Content: 5.1 Flexibility 5.1.1 Locking Operation 5.1.1.1 When tested according to 6.2.1, the locking beam should be able to open. 5.1.1.2 When tested according to 6.2.1, the torque between locking and unlocking should not exceed 1 N·m. 5.1.2 Key Insertion Force The key insertion force should not exceed 12 N. 5.2 Corrosion Resistance After the corrosion test, the torque applied to the key should not exceed 1.5 N·m, and the disc lock should be able to open. 5.3 Security Performance 5.3.1 Effective Notch Count 5.3.1.1 The effective notch count n of the disc lock should comply with Table 3. 5.3.1.2 The same grade of notches should account for no more than 60% of the total notch count of a single key. 5.3.2 Key Interchangeability When tested according to 6.4.3, the disc lock should not be able to be opened with a copy key that differs from the original key by only one grade at the torque M1 specified in Table 3. 5.3.3 Lock Cylinder Tensile Strength When tested according to 6.4.4, the lock cylinder should withstand the tensile force F1 specified in Table 3 without separating from the lock body. 5.3.4 Locking Beam Tensile Strength When tested according to 6.4.5, the locking beam should withstand the rotational torque M2 specified in Table 3 without opening the lock. 5.3.5 Locking Beam Anti-Rotational Torque When tested according to 6.4.6, the locking beam should withstand the rotational torque M2 specified in Table 3 without opening the lock. 5.3.6 Locking Beam Anti-Shear When tested according to 6.4.7, the locking beam should withstand the shear force F3 specified in Table 3 without being cut. 5.3.7 Impact Resistance When tested according to 6.4.8, the disc lock should not open when subjected to the impact force specified in Table 3. 5.3.8 Anti-Drilling When tested according to 6.4.9, the disc lock should meet the anti-drilling time t1 specified in Table 3. 5.3.9 Anti-Sawing of Lock Body and Locking Beam

Development Information

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