The electric grid network is often referred to as critical infrastructure. For electric utilities, any interruption that causes a lot of downtimes is a significant source of revenue loss. As a result, policymakers expect network operators to deliver electricity to retail customers around the clock.
As a result, hi-pot testing equipment must meet the highest standards of quality and reliability while also protecting the people who use it, so this is why. As a top manufacturer of electrical test and measurement equiddpment takes excellent pleasure in giving our customers products that meet the above criteria.
In this blog, we will talk about how to do Hipot testing, a standard safety test that checks both the user’s safety and the insulation health of the test object.
Importance of HIPOT Testing
The hi-pot tester is a non-destructive way to see if the electrical insulation can handle a typical surge in voltage. This high-voltage test is done on all devices for a set amount of time to ensure that the insulation is not weak.
Using a hi-pot tester can help you find insulation and wire strands and problems with the spacing between the wire and the terminals. They can also help you find conductive or corrosive contaminants around the conductors and problems with terminal spacing and cables. Insufficient creepage and clearance distances were added during the manufacturing process.
Test method for HIPOT Test
Hipot testers usually connect one side of the supply to a safe ground for people to touch, like a wall. The other side of the power supply is connected to the conductor being checked. There are two places where a conductor can be connected: high voltage or ground.
When more than two contacts need to be hipot tested, you connect one reference to high voltage and all other communications to the ground. In this way, you can ensure that a contact is not linked to any further contact.
Pre-Testing Arrangements for Hipot Testing
- Make sure that the instrument’s body is anchored to the ground properly.
- Previous testing data and logs can be used as a reference.
- Make sure the test location/area has enough light/illumination.
- A wooden bench or table where you can put your instrument is on it.
- Mains power with proper grounding
- With suitable test leads and no signs of wear and tear.
- A multimeter should be available to check the continuity of test items. Leads
- Before touching the test object, you need to use a discharge rod.
- For your safety, wear gloves, safety glasses, a helmet, and safety shoes.
- People who work with the kit should stand on an HV-insulated rubber mat while they do their work.
- Make sure there is enough earthing. Earth spikes are needed for more earthing.
- Keep a safe distance from the HV Terminals when you are using HV.
Audio-visual signs and barriers can tell people to stay away while injecting HV. All of the hi-pot testing equipment sold by professionals are made to work, and the features listed above make the kits stand out from those of other competitors.