what code use in slow blown fuse?

In the context of electrical fuses, a "slow-blow" fuse, also known as a time-delay fuse, is designed to withstand temporary surges of current without blowing. It typically uses a code that includes letters and numbers indicating its specifications, such as amperage rating and voltage. Commonly, these fuses are marked with codes like "T" for time-delay or "D" for delay, followed by the amperage rating (e.g., T10 for a 10 amp slow-blow fuse). Always refer to the manufacturer's specifications for accurate identification and usage.