A site transformer is a vital piece of equipment, designed to enhance electrical safety and compatibility with tools. It primarily functions by converting the standard UK mains voltage of 230 volts down to a safer 110 volts, which is the norm for construction tools in the UK.
This step-down in voltage significantly reduces the risk of serious electric shock, especially in an environment where dampness and metallic surfaces are common. Site transformers are used to power a variety of tools and provide continuous lighting, and they come equipped with multiple outlets to facilitate simultaneous connections. Built to be robust and portable, they are well-suited to withstand the harsh conditions of construction sites, making them an indispensable component for safe and efficient operations.
When selecting a site transformer, the first and most crucial step is to accurately assess your power requirements. This means calculating the total power demand of all the tools and equipment you intend to use at the same time.
Check the wattage or amperage of each tool and add them up to determine the overall load. This total will guide you in choosing a transformer with the right kVA (kilovolt-ampere) rating.
For instance, light-duty tools might only require a 1.5kVA transformer, while more power-intensive tasks or multiple tool operations might necessitate a transformer with a capacity of 10kVA or more. It's essential to get this right, as an underpowered transformer can lead to tool performance issues or safety hazards, while an overly powerful one may be unnecessarily expensive and bulky.