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electrical:12v:wiring

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electrical:12v:wiring [2022/09/17 14:18]
frater_secessus created
electrical:12v:wiring [2022/09/17 14:25] (current)
frater_secessus [critical vs noncritical applications]
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     * fuses are **sized 20% over the wire's rating**.  Example:  a wire that is rated for 40A would be fused at ≤48A.     * fuses are **sized 20% over the wire's rating**.  Example:  a wire that is rated for 40A would be fused at ≤48A.
     * fuses are placed **as close to the source of the power as practical** to protect the maximum amount of wire     * fuses are placed **as close to the source of the power as practical** to protect the maximum amount of wire
 +    * fuses are typically placed on the POS leg
  
 ===== critical vs noncritical applications ===== ===== critical vs noncritical applications =====
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   * battery bank to fuse panel   * battery bank to fuse panel
   * power distribution runs from one side of the van to the other (bus to bus)    * power distribution runs from one side of the van to the other (bus to bus) 
 +  * DC-DC charging of the house bank from alternator
 +  * sensitive electronics
 +  * inverters running large loads
  
 **Noncritical applications** can accept voltage sag of ≤10%.  With 10% sag 14.4v at the source drops to 13.0v at the other end of the wires.  Some noncritical applications might include: **Noncritical applications** can accept voltage sag of ≤10%.  With 10% sag 14.4v at the source drops to 13.0v at the other end of the wires.  Some noncritical applications might include:
  
-  * isolator charging of the +  * isolator charging of the house bank ([[electrical:12v:alternator#example|details]]), especially when some solar is present 
 +  * MaxxFan control boards are sensitive to overvoltage and may prefer some sag 
  
  
electrical/12v/wiring.1663438728.txt.gz · Last modified: 2022/09/17 14:18 by frater_secessus