A 110v cable is a type of electrical cable used primarily on construction sites, particularly in the UK and other regions where this voltage is standard for site equipment. The "110v" refers to the voltage level that the cable is designed to carry.
While it's not explicitly required by law to use 110v equipment on construction sites, it is a widely adopted standard due to health and safety regulations. The Health and Safety Executive (HSE) recommends using the lowest possible voltage to reduce the risk of electric shock. In practice, this means that 110v, often supplied through a centre-tapped transformer to create a 55v-0-55v split, is the common standard for portable electrical tools and equipment on construction sites.
This practice aligns with the Electricity at Work Regulations 1989, which require that electrical systems be constructed in a way that prevents danger. Using 110v equipment, particularly in wet or potentially hazardous environments, greatly reduces the risk of serious injury from electric shocks compared to the standard domestic voltage of 230v.
Therefore, while not a legal requirement, the use of 110v equipment on UK construction sites is a standard safety practice and is strongly advised to comply with health and safety guidelines.