Detailed AC/DC system design - Revision history

Alex: Text replacement - "Allowable wire ampacity table" to "Conductor ampacity table"

2021-02-12T19:53:07Z

Text replacement - "Allowable wire ampacity table" to "Conductor ampacity table"

Alex at 17:09, 4 February 2021

2021-02-04T17:09:28Z

Alex: /* Design summary */

2021-02-04T16:15:05Z

Design summary

Alex: /* Phase 2: Wire ampacity */

2021-02-04T16:00:35Z

Phase 2: Wire ampacity

Alex at 14:53, 4 February 2021

2021-02-04T14:53:09Z

Alex at 14:50, 4 February 2021

2021-02-04T14:50:37Z

Show changes

Alex at 14:25, 4 February 2021

2021-02-04T14:25:33Z

Alex: /* Step 4: Determine the size of the equipment grounding conductors (EGCs) */

2021-02-04T14:23:35Z

Step 4: Determine the size of the equipment grounding conductors (EGCs)

Alex: /* Phase 3: Overcurrent protection and disconnects */

2021-02-04T14:20:19Z

Phase 3: Overcurrent protection and disconnects

Alex: /* Phase 4: Voltage drop */

2021-02-04T14:18:46Z

Phase 4: Voltage drop

@@ Line 790: / Line 790: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 4 mm² / 12 AWG, 90°C wet/dry rated PV wire with an ampacity rating of 25 A will be used for this circuit as this is a commonly used wire type for a circuit of this type. 25 A is larger than the required 15.04 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 4 mm² / 12 AWG, 90°C wet/dry rated PV wire with an ampacity rating of 25 A will be used for this circuit as this is a commonly used wire type for a circuit of this type. 25 A is larger than the required 15.04 A ampacity.
 </li>
 </ol>
@@ Line 890: / Line 890: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 6 mm² / 10 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 35 A  will be used for this circuit as this is a commonly used wire type for a circuit of this type. 35 A is larger than the required 20 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 6 mm² / 10 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 35 A  will be used for this circuit as this is a commonly used wire type for a circuit of this type. 35 A is larger than the required 20 A ampacity.
 </li>
 </ol>
@@ Line 916: / Line 916: @@
 {| class="wikitable" border=1 style="width: 80%;"
 ! style="width: 20%"|Maximum current under conditions of use
-! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
+! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
 |-
+|
@@ Line 1,002: / Line 1,002: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 4 mm² / 12 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 25 A  will be used for this circuit as this is a commonly used wire type for a circuit of this type. 25 A is larger than the required 12 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 4 mm² / 12 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 25 A  will be used for this circuit as this is a commonly used wire type for a circuit of this type. 25 A is larger than the required 12 A ampacity.
 </li>
 </ol>
@@ Line 1,027: / Line 1,027: @@
 {| class="wikitable" border=1 style="width: 80%;"
 ! style="width: 20%"|Maximum current under conditions of use
-! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
+! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
 |-
+|
@@ Line 1,122: / Line 1,122: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 2.5 mm² / 14 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 20 A will be used for this circuit as this is a commonly used wire type for a circuit of this type. 20 A is larger than the required 1.25 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 2.5 mm² / 14 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 20 A will be used for this circuit as this is a commonly used wire type for a circuit of this type. 20 A is larger than the required 1.25 A ampacity.
 </li>
 </ol>
@@ Line 1,133: / Line 1,133: @@
 {| class="wikitable" border=1 style="width: 80%;"
 ! style="width: 20%"|Maximum current under conditions of use
-! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
+! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
 |-
+|
@@ Line 1,211: / Line 1,211: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 10 mm² / 8 AWG, 75°C dry/wet rated wire with an ampacity rating of 50 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 50 A is larger than the required 27 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 10 mm² / 8 AWG, 75°C dry/wet rated wire with an ampacity rating of 50 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 50 A is larger than the required 27 A ampacity.
 </li>
 </ol>
@@ Line 1,237: / Line 1,237: @@
 {| class="wikitable" border=1 style="width: 80%;"
 ! style="width: 20%"|Maximum current under conditions of use
-! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
+! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
 |-
+|
@@ Line 1,323: / Line 1,323: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 2.5 mm² / 14 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 20 A will be used for this circuit as this is a commonly used wire type for a circuit of this type. 20 A is larger than the required 2.9 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 2.5 mm² / 14 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 20 A will be used for this circuit as this is a commonly used wire type for a circuit of this type. 20 A is larger than the required 2.9 A ampacity.
 </li>
 </ol>
@@ Line 1,348: / Line 1,348: @@
 {| class="wikitable" border=1 style="width: 80%;"
 ! style="width: 20%"|Maximum current under conditions of use
-! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
+! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
 |-
+|
@@ Line 1,443: / Line 1,443: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 2.5 mm² / 14 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 20 A  will be used for this circuit as this is a commonly used wire type for a circuit of this type. 20 A is larger than the required 1.8 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 2.5 mm² / 14 AWG, 75° wet / 90°C dry rated wire with an ampacity rating of 20 A  will be used for this circuit as this is a commonly used wire type for a circuit of this type. 20 A is larger than the required 1.8 A ampacity.
 </li>
 </ol>
@@ Line 1,454: / Line 1,454: @@
 {| class="wikitable" border=1 style="width: 80%;"
 ! style="width: 20%"|Maximum current under conditions of use
-! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
+! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
 |-
+|
@@ Line 1,544: / Line 1,544: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 10 mm² / 6 AWG, 75°C dry/wet rated wire with an ampacity rating of 50 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 50 A is larger than the required 27 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|allowable wire ampacity table]]. A 10 mm² / 6 AWG, 75°C dry/wet rated wire with an ampacity rating of 50 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 50 A is larger than the required 27 A ampacity.
 </li>
 </ol>
@@ Line 1,569: / Line 1,569: @@
 {| class="wikitable" border=1 style="width: 80%;"
 ! style="width: 20%"|Maximum current under conditions of use
-! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
+! style="text-align:left;"| = [[Wire, overcurrent protection, and disconnect sizing and selection#Conductor ampacity table|Wire ampacity from allowable wire ampacity table]] × Total wire correction parameter (Phase 2).
 |-
+|

@@ Line 809: / Line 809: @@
 | = 12.03 A × 1.25 = 15.04 A
 |}
-<li>A standard 15 A DC breaker will be used. This is breaker is larger than the required minimum OCPD size, but smaller than the rated 30 A ampacity of the wire that it will protect.</li>
+<li>A standard 15 A DC breaker will be used. This breaker is larger than the required minimum OCPD size, but smaller than the rated 30 A ampacity of the wire that it will protect.</li>
 <li>It is not necessary to verify that the OCPD will protect the chosen wire size as the PV source is current limited, therefore it cannot supply more current than the wire can handle.</li>
 </ol>
@@ Line 910: / Line 910: @@
 | = 20 A × 1.25 = 25 A
 |}
-<li>A standard 25 A DC breaker will be used. This is breaker is larger than the required minimum OCPD size, but smaller than the 35 A rated ampacity of the wire that it will protect.</li>
+<li>A standard 25 A DC breaker will be used. This breaker is larger than the required minimum OCPD size, but smaller than the 35 A rated ampacity of the wire that it will protect.</li>
 <li>Verify that the chosen OCPD size from Step 2 will protect the wire size chosen in Phase 2 from excessive current under the conditions of use. The current rating of the chosen OCPD size (Step 2) must be less than the calculated maximum current under conditions of use ''unless'' the calculated maximum current under conditions of use is between standard OCPD values, in this case the next largest OCPD size is used from the [[Wire, overcurrent protection, and disconnect sizing and selection#Phase 3: Overcurrent protection and disconnects|list of standard OCPD sizes]]. If the current rating of the chosen OCPD size is larger than the maximum OCPD size under conditions of use, then the wire size must be increased until it passes this test.
@@ Line 1,021: / Line 1,021: @@
 | = 12 A × 1.25 = 15 A
 |}
-<li>A standard 15 A DC breaker will be used. This is breaker is larger than the required minimum OCPD size, but smaller than the 30 A rated ampacity of the wire that it will protect.</li>
+<li>A standard 15 A DC breaker will be used. This breaker is larger than the required minimum OCPD size, but smaller than the 30 A rated ampacity of the wire that it will protect.</li>
 <li>Verify that the chosen OCPD size from Step 2 will protect the wire size chosen in Phase 2 from excessive current under the conditions of use. The current rating of the chosen OCPD size (Step 2) must be less than the calculated maximum current under conditions of use ''unless'' the calculated maximum current under conditions of use is between standard OCPD values, in this case the next largest OCPD size is used from the [[Wire, overcurrent protection, and disconnect sizing and selection#Phase 3: Overcurrent protection and disconnects|list of standard OCPD sizes]]. If the current rating of the chosen OCPD size is larger than the maximum OCPD size under conditions of use, then the wire size must be increased until it passes this test.
@@ Line 1,231: / Line 1,231: @@
 | = 27 A × 1.25 = 33.75 A
 |}
-<li>A standard 35 A DC breaker will be used. This is breaker is larger than the required minimum OCPD size and smaller than the 50 A rated ampacity of the wire that it will protect.</li>
+<li>A standard 35 A DC breaker will be used. This breaker is larger than the required minimum OCPD size and smaller than the 50 A rated ampacity of the wire that it will protect.</li>
 <li>Verify that the chosen OCPD size from Step 2 will protect the wire size chosen in Phase 2 from excessive current under the conditions of use. The current rating of the chosen OCPD size (Step 2) must be less than the calculated maximum current under conditions of use ''unless'' the calculated maximum current under conditions of use is between standard OCPD values, in this case the next largest OCPD size is used from the [[Wire, overcurrent protection, and disconnect sizing and selection#Phase 3: Overcurrent protection and disconnects|list of standard OCPD sizes]]. If the current rating of the chosen OCPD size is larger than the maximum OCPD size under conditions of use, then the wire size must be increased until it passes this test.
@@ Line 1,342: / Line 1,342: @@
 | = 2.3 A × 1.25 = 2.9 A
 |}
-<li>A standard 4 A AC residual current device will be used. This is breaker is larger than the required minimum OCPD size, but smaller than the 25 A rated ampacity of the wire that it will protect.</li>
+<li>A standard 4 A AC residual current device will be used. This breaker is larger than the required minimum OCPD size, but smaller than the 25 A rated ampacity of the wire that it will protect.</li>
 <li>Verify that the chosen OCPD size from Step 2 will protect the wire size chosen in Phase 2 from excessive current under the conditions of use. The current rating of the chosen OCPD size (Step 2) must be less than the calculated maximum current under conditions of use ''unless'' the calculated maximum current under conditions of use is between standard OCPD values, in this case the next largest OCPD size is used from the [[Wire, overcurrent protection, and disconnect sizing and selection#Phase 3: Overcurrent protection and disconnects|list of standard OCPD sizes]]. If the current rating of the chosen OCPD size is larger than the maximum OCPD size under conditions of use, then the wire size must be increased until it passes this test.

@@ Line 1,686: / Line 1,686: @@
 ==Design summary==
-[[File:ACDCexamplewiring2101141.png|thumb|A three-line wiring diagram for this system. Equipment grounding wires are not labeled for simplicity.]]
+[[File:ACDCexamplewiring210204.png|thumb|A three-line wiring diagram for this system. Equipment grounding wires are not labeled for simplicity.]]
 *'''DC nominal voltage:''' 24 V
 *'''AC nominal voltage:''' 220 V

@@ Line 1,544: / Line 1,544: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 16 mm² / 6 AWG, 75°C dry/wet rated wire with an ampacity rating of 65 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 65 A is larger than the required 27 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 10 mm² / 6 AWG, 75°C dry/wet rated wire with an ampacity rating of 50 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 50 A is larger than the required 27 A ampacity.
 </li>
 </ol>

@@ Line 1,544: / Line 1,544: @@
 |}
-<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 16 mm² / 10 AWG, 75°C dry/wet rated wire with an ampacity rating of 65 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 65 A is larger than the required 27 A ampacity.
+<li>Select a wire size with a maximum rated ampacity equal to or above the minimum wire ampacity calculated in the previous step using the [[Wire, overcurrent protection, and disconnect sizing and selection#Allowable wire ampacity table|allowable wire ampacity table]]. A 16 mm² / 6 AWG, 75°C dry/wet rated wire with an ampacity rating of 65 A at 75°C will be used for this circuit as this is a commonly used wire type for a circuit of this type. 65 A is larger than the required 27 A ampacity.
 </li>
 </ol>
@@ Line 1,598: / Line 1,598: @@
 If the voltage drop for the wire chosen in Phase 2 for a particular circuit is not within the [[Wire, overcurrent protection, and disconnect sizing and selection#Recommended circuit voltage drop values|recommended values]], then using a larger sized wire should be considered. Increasing the wire size will not affect any other part of this process; the calculated OCPD size can remain the same.
-This circuit will be 2 meters long one-way from the batteries to the DC busbars. It is 16 mm² / 10 AWG, wire with a resistance value in (Ω/Km) of 1.671 Ω. It is recommended that the voltage drop between the energy storage system and the charge controller or inverter be less than 1.5%. The nominal circuit voltage is the [[DC system voltage]]: 24 V.
+This circuit will be 2 meters long one-way from the batteries to the DC busbars. It is 16 mm² / 6 AWG, wire with a resistance value in (Ω/Km) of 1.671 Ω. It is recommended that the voltage drop between the energy storage system and the charge controller or inverter be less than 1.5%. The nominal circuit voltage is the [[DC system voltage]]: 24 V.
 {| class="wikitable" border=1 style="width: 80%;"
@@ Line 1,624: / Line 1,624: @@
 ====Step 2: Determine the size of the grounding electrode conductor (GEC)====
-The grounding electrode conductor (GEC) is chosen on the basis of the type of grounding electrode. A 16 mm² / 10 AWG, GEC will be used with the ground rod.
+The grounding electrode conductor (GEC) is chosen on the basis of the type of grounding electrode. A 16 mm² / 6 AWG, GEC will be used with the ground rod.
 {| class="wikitable" border=1
@@ Line 1,641: / Line 1,641: @@
 ====Step 3: Determine size of the AC and DC system grounding jumpers====
-A 16 mm² / 10 AWG, wire will be used for the AC and DC sysem grounding jumpers.
+A 16 mm² / 6 AWG, wire will be used for the AC and DC sysem grounding jumpers.
 ====Step 4: Determine the size of the equipment grounding conductors (EGCs)====
@@ Line 1,699: / Line 1,699: @@
 *'''Inverter:''' 1 × Victron Phoenix 500 W, 24 V pure sine wave inverter [https://www.opensourcesolar.org/w/downloads/specsheets/Datasheet-Phoenix-Inverter-VE.Direct-250VA-1200VA-EN.pdf Specifications sheet]
 ===Circuits===
-*'''PV source circuit:''' 4 mm² / 12 AWG, 90°C PV wire. 16 A breaker as a power source disconnect.
+*'''PV source circuit:''' 4 mm² / 12 AWG, 90°C PV wire. 15 A breaker as a power source disconnect.
 *'''Charge controller output circuit:''' 6 mm² / 10 AWG, 75° wet / 90°C dry rated wire. 25 A breaker as a power source disconnect.
-*'''Charge controller load circuit:''' 4 mm² / 12 AWG, 75° wet / 90°C dry rated wire. 16 A breaker.
+*'''Charge controller load circuit:''' 4 mm² / 12 AWG, 75° wet / 90°C dry rated wire. 15 A breaker.
 *'''DC branch circuit:''' 2.5 mm² / 14 AWG, 75° wet / 90°C dry rated wire. No overcurrent protection device required.
 *'''Inverter input circuit:''' 10 mm² / 8 AWG, 75°C dry/wet rated wire. 35 A breaker.

@@ Line 1,646: / Line 1,646: @@
 Each grounding electrode conductor must be sized to the size of the smallest overcurrent protection device that protects the circuit.
-*'''PV source circuit:''' 16 A OCPD = 4 mm² EGC
+*'''PV source circuit:''' 15 A OCPD = 2.5 mm² EGC
 *'''Charge controller output circuit:''' 25 A OCPD = 6 mm² EGC
-*'''Charge controller load circuit:''' 16 A OCPD = 4 mm² EGC.
+*'''Charge controller load circuit:''' 15 A OCPD = 2.5 mm² EGC.
-*'''DC branch circuit:''' 16 A OCPD = 4 mm² EGC
+*'''DC branch circuit:''' 15 A OCPD = 2.5 mm² EGC
 *'''Inverter input circuit:''' 50 A OCPD = 6 mm² EGC
 *'''Inverter output circuit:''' 4 A OCPD = 2.5 mm² EGC

@@ Line 1,138: / Line 1,138: @@
 | = 20 A × 1 = 20 A
 |}
 {| class="wikitable" border=1 style="width: 80%;"

@@ Line 1,282: / Line 1,282: @@
 |-
+|
-| = .06 V ÷ 24 V × 100 = .21%
+| = .05 V ÷ 24 V × 100 = .21%
 |}