Experiment-Ohmmeter(Insulation tester)Usage
PARTS AND MATERIALS
- Multimeter, digital or analog
- Assorted resistors (Radio Shack catalog # 271-312 is a 500-piece assortment)
- Rectifying diode (1N4001 or equivalent; Radio Shack catalog # 276-1101)
- Cadmium Sulphide photocell (Radio Shack catalog # 276-1657)
- Breadboard (Radio Shack catalog # 276-174 or equivalent)
- Jumper wires
- Paper
- Pencil
- Glass of water
- Table salt
IR Values of electrical equipment
The measurement of insulation resistance is a common routine test performed on all types of electrical wires and cables. As a production test, this test is often used as a customer acceptance test, with minimum insulation resistance per unit length often specified by the customer. The results obtained from IR Test are not intended to be useful in finding localized defects in the insulation as in a true HIPOT test, but rather give information on the quality of the bulk material used as the insulation.Even when not required by the end customer, manywire and cable manufacturers use the insulation resistance test to track their insulation manufacturing processes, and spot developing problems
