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Appendix



                 (b) typical values of C1 for Ferraz Shawmut fuses



                                                                                                        C1
                                                                                   C1
                         FUSE                                                without liquid    with liquid cooling
                      TECHNOLOGY                 SIZE              TYPE        cooling on        to keep the fuse
                      (construction)                                                          contacts below 60 °C
                                                                               terminals
                                                                                                  on both sides
                                         30-31-32-33 & doubles      UR-           0.85                 1.30
                                                                    gR-           0.85                 1.25
                                         70-71-72-73 & doubles      UR-           0.90                 1.25
                                                                    gR-           0.90                 1.20
                                            83-84 & doubles         UR-           0.90                 1.20
                        square                                      gR-           0.90                 1.15
                                         91-92-93-94 & doubles      UR-           0.90                 1.10
                                                                    gR-           0.90                 1.05
                                         120-121-122-123-124        UR-           0.95                   1
                                               & doubles            gR-             1                    1
                                             longer bodies           all            1                    1
                                             130 V to 300 V                       0.80                 1.30
                         round               500 V  to 1000                       0.85                 1.20
                       fi bre-glass          1100 to 1500 V                        0.90                 1.10
                                           1600 V to 3000 V                       0.95                   1
                                             above 3000 V                           1                    1
                                           A13X(amp)-1 or 2
                                            A13Z(amp)-1 or 2                      0,80                 1,30
                                           A25X (amp)-1 or 2
                                            A25Z(amp)-1 or 2
                                            A50P(amp)-1,1DS
                                            A70P(amp)-1,1DS
                                              A60X(amp)-1                         0,85                 1,20
                                              A60Z(amp)-1
                                            A100P(amp)-1,1A
                                            A100X(amp)-1,1A
                                            A100Z(amp)-1,1A
                       American            A70QS(rating)-14F                      0,90                   1
                        ferrules            14FI , 22F , 22FI
                                             A60Q(rating)-2                       0,90                   1
                                            A120X(rating)-2
                                            A150P(rating)-1
                                         A150X(rating)-1 or 1W                    0,90                  1,1
                                        A150Z(rating)-1 or 1W
                       European                  all sizes                  according to the rated power of the
                        ferrules                                            fuse-holder : see the de-rating table of
                                                                            the holder published in the ADVISOR



















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