Electric Pump Safety on Construction Sites

What Voltage is Needed for an Electric Pump on a Construction Site?

When selecting an electric pump for a construction site, 110 volts is the recommended voltage due to its enhanced safety features. This lower voltage significantly reduces the risk of severe electric shocks, making it the standard choice in construction environments.

The 110V supply system is designed as a center-tapped-to-earth configuration, consisting of +55V and -55V, resulting in a 110V potential difference. This setup minimises electrical hazards by lowering the voltage exposure to any single point of contact.

As outlined in the IET Wiring Regulations 18th Edition, this is classified as a ‘reduced low voltage’ system, specifically implemented to improve safety on construction sites where electrical risks are heightened.

How to Obtain a 110 Volt Supply?

The most common method is using a transformer from a 230-volt power supply. These transformers are typically bright yellow and have special socket arrangements to avoid confusion with standard domestic 230-volt supplies.

For larger setups, construction sites may have central transformers or generators that provide 110-volt supplies. These, too, are fitted with specific sockets meant only for 110-volt equipment.

Is 110 Volt Mandatory for Portable Pumps?

Most professional construction sites insist that all single-phase portable pump equipment operates at 110 volts. This requirement is not only for safety but also for compliance with insurance and regulatory standards. Effective precautions must always be taken to minimise the risk of electrical injury or fatality during construction work.

Handling Damaged or Cut Pump Cables

Like any electrical equipment, electric pumps must be treated with care. Regular inspections should be conducted, and any damaged equipment should be immediately taken out of service. Repairs and servicing should only be conducted by qualified personnel. Makeshift or DIY repairs are highly discouraged and can be hazardous.

Immediate Isolation for Safety

If any issue arises, do not take unnecessary risks—immediately isolate the equipment and prevent its use until it has been inspected and repaired by a professional. 

For further technical advice, please do not hesitate to contact a member of the team on 01630 647200 or email pumpsales@ttpumps.com