Ground testing is used to measure the performance of the circuit and check if it meets requirements. Routine testing should be performed to ensure that your ground system is performing as it was designed.
Megger recently published an article “Getting Down to Ground” that stated approximately 80% of electrical issues are grounding related.
Transworld Electric offers grounding system testing according to the ANSI/NETA MTS-2015 Standard section 7.13 part A thru D.
• Three-point fall-of-potential test on main grounding grid
• Two-point “point-to-point” resistance test from the main ground to all frame, equipment, and neutral bonding points.
• Using a micro-ohm meter to verify the resistance of any mechanical connections
• Using a clamp-on ground resistance meter to test bonding points and the main grounding system
• Three-point fall-of-potential test on the main grounding grid to make sure it meets all ANSI/NETA MTS-2015 standards.
• Two-point ground resistance tests on all equipment ground bonds and electrical neutral bonding points met ANSI/NETA MTS-2015 standard
Importance of Ground Testing:
- A system with faulty grounding can cause catastrophic losses of data, equipment, and even human life in case of electrical malfunctions.
- Equipment operating with inadequate grounding may be exposed to voltage surges and spikes that can damage it.
- Sensitive equipment is prone to processing data incorrectly or losing it altogether in case grounding is lost.
- Intermittent faults from bad grounding can create a range of problems, from random shocks to failures that cannot be pinpointed easily.
- A build-up of surface static electricity may give shocks, which are easily misdiagnosed as internal faults. This leads to unnecessary and costly repairs or replacement of parts.
Typical problems include:
- Electrical Shock
- Heated Bus Bars
- Static Discharge
- Unexpected Device Actuation
- Device Failures
- Device Trips (typical during storm roll in)
- Harmonic Issues
Transworld Electric has over 30 years of electrical experience. Our licensed electricians are continuously attentive to detail and plan in accordance with current codes and standards to ensure accurate and safe testing.
Every report includes scope of work, testing results, and recommendations in accordance with ANSI/NETA MTS-2015 standard.