Digital Insulation Resistance Tester Megger

I had basic knowledge of using a megger but no idea what the cutoff was for acceptable insulation resistance values.

Digital insulation resistance tester megger.

Digital insulation resistance tester btmeter bt 6688b with test voltage 5000v insulation resistance 200g ohms high voltage indication. The insulation resistance test a k a the megger test is as relevant as ever and in many applications is preferred to other insulation test methods. A megger insulation resistance tester is especially useful when you have carried out electrical work on your home and want to make sure you didn t damage insulation or make a wiring mistake. The megger company registered the name megger in may 1903 and today offers a wide variety of ir testers.

Click to play video. Megohmmeters also known as insulation testers or megger testers measure resistance to determine current leakage and identify faulty insulation. Megger mit310 en insulation tester 1000 megaohms resistance 250v 500v 1000v test voltage. I love the easy to read digital resistance display of this meter.

Offering cat iv the mit515 is the simplest of megger s new range of small light 5 kv insulation resistance testers for the testing and maintenance of high voltage electrical equipment. Videos for related products. It is both smaller and lighter than its predecessor making it even easier to carry and store. Fluke s digital insulation resistance testers provide reliable results whether you work on motors generators cables or switchgear.

The first dc portable insulation tester was developed in 1889 by our founders sydney evershed and ernest vignoles and by 1903 was being sold as a megger insulation tester. With just a little research on electrical talk websites i determined that a rule of thumb is 1 megaohm per 1 000 volts plus 1 megaohm for safety margin.