shortcircuit2
Senior Member
- Location
- South of Bawstin
CMP 4 has this for 2020...
(C) Overcurrent Protection.
The power source output circuit conductors shall be protected from overcurrent in accordance with 705.30. If fuses are not integral with the disconnecting means, the disconnecting means shall be located on the service side of the fuses. Where the power source output circuit conductors make their connection to the service outside of a building, they shall be protected by overcurrent devices in a readily accessible location outside the building or at the first readily accessible location where the power source conductors enter the building. Where the power source output circuit conductors make their connection to the service inside a building, they shall be protected with one of the following methods:
(D) Bonding and Grounding.
All metal enclosures, metallic wiring methods, and metal parts associated with conductors in 705.11(B) shall be bonded in accordance with 250.92(B). The grounding terminal or bus for the disconnecting means in 705.11(F) shall be connected to a supply side bonding jumper, sized in accordance with 250.102, based on the size of the conductors in 705.11(B). The supply side bonding jumper shall be connected to the grounded service conductor within or ahead of the service disconnecting means. If the power production equipment requires a grounded conductor, no connection shall be made between the supply side bonding jumper and the grounded conductor at the disconnecting means in 705.11(F).
(F) Disconnecting Means.
The power source disconnecting means shall meet the requirements of 705.20. The power source disconnecting means shall not be considered as one of the service disconnecting means as required by 230.70. The requirements of 230.71 and 230.72 shall apply to the power source disconnecting means that are installed in accordance with 230.2(A)(5) or 230.40, Exception No. 5. The conductors connected to the service conductors shall be terminated on the line side of the disconnect. Equipment containing a power source disconnecting means rated 1000 volts or less shall be listed as suitable for use as service equipment.
So...
(C) Overcurrent Protection.
The power source output circuit conductors shall be protected from overcurrent in accordance with 705.30. If fuses are not integral with the disconnecting means, the disconnecting means shall be located on the service side of the fuses. Where the power source output circuit conductors make their connection to the service outside of a building, they shall be protected by overcurrent devices in a readily accessible location outside the building or at the first readily accessible location where the power source conductors enter the building. Where the power source output circuit conductors make their connection to the service inside a building, they shall be protected with one of the following methods:
- With an overcurrent device located within 3 m (10 ft) of conductor length in dwelling units and 5 m (16.5 ft) in other than dwelling units from the point of connection to the service
- In other than a dwelling unit, with an overcurrent device located within 20 m (71 ft). With cable limiters at theof conductor length from the point of connection to the service, provided that cable limiters installed in all ungrounded conductors are located within 205 m (7116.5 ft) of conductor length from the point of connection to the service
(D) Bonding and Grounding.
All metal enclosures, metallic wiring methods, and metal parts associated with conductors in 705.11(B) shall be bonded in accordance with 250.92(B). The grounding terminal or bus for the disconnecting means in 705.11(F) shall be connected to a supply side bonding jumper, sized in accordance with 250.102, based on the size of the conductors in 705.11(B). The supply side bonding jumper shall be connected to the grounded service conductor within or ahead of the service disconnecting means. If the power production equipment requires a grounded conductor, no connection shall be made between the supply side bonding jumper and the grounded conductor at the disconnecting means in 705.11(F).
(F) Disconnecting Means.
The power source disconnecting means shall meet the requirements of 705.20. The power source disconnecting means shall not be considered as one of the service disconnecting means as required by 230.70. The requirements of 230.71 and 230.72 shall apply to the power source disconnecting means that are installed in accordance with 230.2(A)(5) or 230.40, Exception No. 5. The conductors connected to the service conductors shall be terminated on the line side of the disconnect. Equipment containing a power source disconnecting means rated 1000 volts or less shall be listed as suitable for use as service equipment.
So...
- (C)(1)...Sure run 10 feet of unprotected service conductor in a dwelling...but the new 230.85 requires a disconnect outside 1&2 family dwellings for the firefighters...just tell the firefighters the PV guys AC power wiring is still alive...(CMP 4 & CMP 10 should share notes)
- (D)...No bonding jumper in the Power Source Disconnect rule...(why require it to be service rated)
- (F)...The grouping rule only apply's to Power Source Disconnects...
