Conformity Magazine - March 2009 - (Page 24) • Optional primary protector: A protector isn’t fitted if the component is designed to work with the 600 V AC letthrough default primary protector. The horizontal shorting link, A, is fitted instead of a protector. Where component is paired with a specific primary protector, the AC generator is modified to produce the 600 V short-circuit currents at the specific primary protector AC let-through voltage. Figure 4: Templates A, B, C and B for GR-1089-CORE (see Table 3) Figure 5: Templates E, F and G for UL60950-1 and H and I for UL 1459 (see Table 4) UL Annex, Clause or Figure Template E Standard UL 60950-1 6.4 Protection against overvoltage from power line crosses. Figure 6C – Overvoltage flowchart — Notes 1 and 5: 100 A2s maximum for 40 A, 1.5 s., Fire enclosure and spacing Annex NAC Power line crosses. NAC.3.3 Tests, Test L-1 Equipment intended for use only with a specified UL 497 or UL 497A protector NAC.3.2.1 Primary protectors Testing done at the protector maximum AC let-through voltage NAC.3.2.2 Secondary protectors: Testing done with the protector in place. 6.4 Protection against overvoltage from power line crosses. Figure 6C – Overvoltage flowchart — Notes 1 and 2: 100 A2s maximum for 40 A, 1.5 s. Overcurrent protector limits current to 1.3 A maximum steady state (e.g. a fuse rated 1,0 A maximum) and complies with Annex NAC Power line crosses. NAC.3.3 Tests, Test L-1 Equipment intended for use only with a specified UL 497 or UL 497A protector NAC.3.2.1 Primary protectors Testing done at the protector maximum AC let-through voltage NAC.3.2.2 Secondary protectors: Testing done with the protector in place. 6.4 Protection against overvoltage from power line crosses. Figure 6C –no fire enclosure Annex NAC Power line crosses. NAC.3.3 Tests, Tests L-1 through L-4. Equipment intended for use only with a specified UL 497 or UL 497A protector NAC.3.2.1 Primary protectors Testing done at the protector maximum AC let-through voltage NAC.3.2.2 Secondary protectors: Testing done with the protector in place. 59 Overvoltage Test, clause 59.4 Type I equipment, Fig 59.2 Time-current characteristics. clause 59.18 Tests L1 through L5. Cable is premises-type wiring 59.15 Non-household equipment intended for use only with a specified UL 497 or UL 497A protector: Testing done with the protector in place. 59 Overvoltage Test, clause 59.14 Type III equipment, clause 59.18 Tests L1 through L5. Cable is 26 AWG or coarser Template B, limited to 40 A 59.15 Non-household equipment intended for use only with a specified UL 497 or UL 497A protector: Testing done with the protector in place. F UL 60950-1 G UL 60950-1 H UL 1459 I UL 1459 Table 4: Sources of UL 60950-1 Templates E, F and G and UL 1459 Templates H and I 2 Conformity marCh 2009
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