In reviewing Figure 240.144, it appears that "supply side of service bonding jumper" and "grounded conductor" have been combined.

Let us review how the NEC uses the terms "bonding" and "grounded conductor".

Atrticle 100 definitions "Bonding Jumper. A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected."

"Grounded Conductor. A system or circuit conductor that is intentionally grounded."

"Grounding Electrode Conductor. The conductor used to connect the grounding electrode(s) to the equipment grounding conductor, to the grounded conductor, or to both, at the service, at each building or structure where supplied by a feeder(s) or branch circuit(s) or at the source of a separately derived system.

Article 250.24(C) Grounded Conductor Brought to Service Equipment "Where an AC system operating at less that 1000 volts is grounded at any point, the grounded conductor(s) shall be run to each service disconnecting means enclosure. The grounded conductor shall be installed in accordance with 250.24(C) (1) through (C)(3)"

Article 250.24(C)(1) Routing and sizing "This conductor shall be routed with the phase conductors and shall not be smaller than the required rounding electrode conductor specified in Table 250.66...In addition, for service-entrance phase conductors larger than 1100kcmil copper or 1750kcmil aluminum, the grounded conductor shall not be smaller than 12 1/2 percent of the area of the largest service-entrance conductor."

Revisit the first sentence of 250.102(C) "Bonding jumpers for service raceways..." This is requiring service entrance raceways to be bonded to the service entrance enclosure.

The Figure indicates a grouded conductor being routed with the service entrance conductors. The bonding jumper for this Figure should have been drawn as in Figure 250.45 where the bonding jumper is connected to the raceways and to the enclosure. The conductor in Figure 250.144 identified as the service side grounding bonding jumper should be identified as the grounded conductor.