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How to Handle High Voltage Installation Safely


Handling High Voltage Safely

A high-voltage installation requires two key elements to be safe: adequate insulation according to the voltage level, and physical isolation measures to prevent accidental contact. Of course, the installation must also meet the National Electrical Code and any local building codes that apply.

To ensure continuous safety, the insulation should be tested at regular intervals; damaged insulation increases the risk of an arc fault, threatening personnel and equipment. Also, insulation deteriorates faster when exposed to extreme temperatures and chemical agents. Testing is performed with a device called a megohmmeter, which applies a test voltage to insulation to measure its performance. The difference with a conventional multimeter is that the megohmmeter applies a much higher test voltage, which is suitable for high insulation levels.

Transmission and distribution lines use much higher voltages that homes and businesses, precisely because they need to carry large amounts of power. A low-voltage transmission line would be prohibitively expensive and very impractical, requiring many miles of large conductors.

Voltage is stepped up at power plants to a suitable level for transmission, and then stepped down by substations for distribution.

Pole transformers perform the final step down for residential and commercial use.

Industrial users often step down the transmission voltage with their own substations, due to their high demand for electricity.

To achieve an installation that is both safe and efficient, the best recommendation is getting professional electrical engineering services from the start of the project. They can specify the most suitable voltage for every appliance and piece of equipment, with the corresponding electrical protections.

Jiangsu Starlight Electricity Equipment Co.,Ltd is a professional manufacturer of diesel generator set. Also produces high voltage generator up to 10.5kv. If you are interested, contact by email: sales@dieselgeneratortech.com


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