Testing The Charging System Using The Voltage Drop Test The first step in this process is to have the engine idling with the headlights on and the heater blower fan running at high output to put a ...

Voltage Drop - This test is used to identify the location of circuit resistance. Additionally, the test is performed to measure the amount of voltage consumed or lost by a component or connection.

If you calculate the voltage drop and see it’s 2.9%, that means you’ve got a “reasonably efficient” circuit. But what if, for a small extra expenditure (upsizing the current-carrying conductors one ...

Test & Measurement Tip of the Week: Voltage Drop and the NEC (NFPA 70) Some information in the NEC is merely explanatory and not considered a rule that must be followed.