Circuit arrangements for DC mains or DC distribution networks

Introduced: September 1968

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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H02J 1/001 CPC only CPC only
H02J 1/002 using intermediate DC-AC-DC conversion since 2026 IPC+CPC Available in IPC and CPC
H02J 1/02 Arrangements for reducing harmonics or ripples IPC+CPC Available in IPC and CPC
H02J 1/04 Current-controlled supply systems, e.g. constant-current supply systems IPC+CPC Available in IPC and CPC
H02J 1/06 Two-wire DC power distribution systems IPC+CPC Available in IPC and CPC
H02J 1/08 Three-wire DC power distribution systems; Systems having more than three wires +1 CPC IPC+CPC Available in IPC and CPC
H02J 1/10 Parallel operation of DC sources +3 CPC IPC+CPC Available in IPC and CPC
H02J 1/14 Balancing load and power generation in DC networks IPC+CPC Available in IPC and CPC