2.3.6 Fuse matching property (1) Testing Electric current i1 shall be fed for 24 hours and subsequently Electric current i2 for 1 hours. For i1, i2 and wire size, see Table 2.3.2. And an atmosphere temperature of 60C shall apply.(2) Performance To be free from any melting of housing or firing of connector. Discoloration of housing and electric wire may be acceptable.