Month: June 2018

Earth Ground Testing

Earth has an electrical property, conductivity (or low resistance), that is used in the electrical systems of your facility.  Earth’s resistance is the resistance of soil to the passage of electric current, and the Earth is a relatively poor conductor; however, if the area of a path for current is large enough, resistance can be quite low and the Earth can be a good conductor.

If there is an instance of overvoltage or lightning strike, you need to ensure that the current will find a safe path to Earth.  If the current does not find this path, or the ground cannot carry the fault current long enough, the result is potential damage to the equipment inside your building.

There are a few factors that can change the Earth electrode requirements from year to year;

  • A plant or other electrical facility can expand in size.  Such changes create different needs in the Earth electrode, and what was formerly a suitably low Earth resistance can change.
  • As facilities add more sensitive computer-controlled equipment, the problems of electrical noise are magnified.  Noise that would not affect older equipment can cause daily problems with new equipment.
  • As more nonmetallic pipes and conduits are installed underground, such installations become less and less dependable as effective, low resistance ground connections.
  • In many locations the water table gradually falls.  In a year or so, Earth electrode systems that were effective may end up in dry Earth of high resistance.

These factors emphasize the importance of a continuous routine of earth-resistance testing, per NFPA 70B recommendations.  It is not enough to check the Earth resistance only at the time of installation.

Specialty Testing pdf – Click the link for a printable pdf describing many of the specialty testing services that ASG Electric has to offer.

Growing Pains? – – Your Electrical needs here

Is your business growing? Are you looking to add new equipment, expand or remodel your current facility, or build at another location? ASG has helped our customers to work through these decisions, and to develop the best plan for moving forward together. ASG is a full service electrical contractor which also has electrical testing and engineering service capabilities. We can help you identify existing problems and help formulate solutions to meet your future needs. Our staff is knowledgeable and committed to a professional development track that far exceeds the requirements to maintain an electrical license. This additional knowledge is important when working to meet the National Fire Protection Association (NFPA) codes and the newly approved 2017 National Electrical Code (NEC). Partnering with ASG will help you keep your people safe, and your business working.

Click here for your ASG Electrical contractor brochure ASG- Electrical Contractor of Choice

 

Indoor Lighting efficiency

ASG Electric has the tools to provide design, and documentation, of a lighting layout so that the areas in your building are appropriately lit for a more comfortable, secure and energy efficient environment.  Options based on your budget and preferred lighting level can be supplied.

If you want to be able to dim lights, either individually or by room, there are light controls that will fit your need. Occupancy sensors can be integrated to save energy, or daylight harvesting systems can use natural light to offset the amount of lighting needed throughout the day. The amount of options are abundant.

Benefits of new lighting:

  • Energy savings of 50% or more
  • Less maintenance cost
  • Satisfy corporate ‘Green’ initiatives
  • Focus on Energy rebates
  • Tax incentives/EPACT 2005

ASG Electric can manage needed submittals, rebates, and monitor delivery dates so your project is completed on time, on budget, and looks great.