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Tap Conductor Rules

Tap Conductor Rules. MAIN RULE: The Overcurrent Device Must Be Located At The Point Where The The Conductor Receives Its Supply. Feeders Can Be Tapped Under The Following Conditions. 1. Not Over 10 feet.

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Tap Conductor Rules

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  1. Tap Conductor Rules

  2. MAIN RULE:The Overcurrent Device Must Be Located At The Point Where The The Conductor Receives Its Supply Feeders Can Be Tapped Under The Following Conditions • 1. Not Over 10 feet 2. Not Less Than The Combined Loads, Ampere Ratings of Switchboards , Panelboards, or Control Devices. 3. Termination Is Not Made Beyond the Switchboard, Panel or Control Device 4. Conductors Must Be Protected Form Damage 10 Foot Tap RuleArt. 240.21.b.1.1 5. Tap Conductor Ampacity Not Greater Than 10 times The Overcurrent Device.

  3. Tap Conductors 10 Feet or LessArticle 240.1.b.1 Minimum size secondary conductors Article 240.21.B.1 3m (10) ft Tap Rules

  4. MAIN RULE:The Overcurrent Device Must Be Located At The Point Where The The Conductor Receives Its Supply Feeders Can Be Tapped Under The Following Conditions • 1. Not Over 25 feet 2. Not Less Than The Combined Loads, Ampere Ratings of Switchboards , Panelboards, or Control Devices. 3. Termination Is Not Made Beyond the Switchboard, Panel or Control Device 4. Conductors Must Be Protected Form Damage 25 Foot Tap RuleArt. 240.21.b.1.1 5. Tap Conductor Ampacity Not Less Than 1/3 the size of the Overcurrent Device.

  5. Overcurrent Protection Transformer Primary Plus Secondary ConductorsArticle 240.21(C)(5) Tap Conductor Ampacity Must Be At Least One Third Of The OCPD Secondary Conductors Cannot Be Over Ten Feet

  6. Transformer Secondary Conductors Article 240.21.b.3

  7. Example 250 Amp Overcurrent Protection Device ( Circuit Breaker) Tap Conductors Ampacity of these conductors is 40 amps

  8. 250 Amp Circuit Breaker Circuit Breakers Circuit Breakers Tap conductors – 40 amps of ampacity

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