Electrical Safety for London Market Stalls, Pop-Ups and Events

London's street markets, food stalls, pop-up shops, fairs and community events often run on temporary power: a lead from a nearby building, a generator, or a supply provided by the market operator. Temporary does not mean less dangerous. Cables cross walkways, equipment gets wet, and lots of people pass close by. This guide covers the main electrical points for traders and organisers. It is general information, not legal advice.

Who is responsible

Each trader is usually responsible for their own equipment, while the market operator or event organiser is responsible for the power supply they provide and the overall layout. Many markets and councils set their own rules for traders, such as requiring PAT test records or banning certain equipment. Check the conditions before your first day.

Temporary supplies and generators

• A temporary supply for an event should be designed and installed by someone competent; BS 7909 is the British Standard commonly used for temporary power at events.
• Generators need proper earthing arrangements and should be placed away from crowds, exits and food, with fumes kept clear of people.
• Every circuit feeding stalls should have RCD protection.
• Do not plug into a building's sockets without the owner's agreement and a check that the circuit can take the load.

Cables, leads and connectors

Use outdoor-rated cables and connectors, such as industrial blue connectors, rather than household extension reels. Run cables where people do not walk, or use cable protectors on walkways. Fully unwind any reel in use, as a coiled reel can overheat. Keep connections off the ground and away from puddles.

Water, food and heat

Food stalls bring hot plates, fryers, urns and fridges together with water and steam. Keep electrical equipment on a stable surface, away from sinks and standing water, and check the total load against the supply you have been given. A tripping supply in the middle of service often means too much is plugged into one circuit. See our guide on why an RCD keeps tripping.

Check your equipment

Equipment that is moved, packed and set up every week wears quickly. Look over plugs, leads and casings before each event, and take damaged items out of use. Regular PAT testing gives you a record that organisers and insurers often ask for. See our guide to PAT testing.

Pop-up shops in empty units

If you take on an empty shop for a short let, the wiring may not have been checked for a while. Ask the landlord for a recent EICR, and test the emergency lighting before you open to the public. Our guide to EICRs for commercial units explains the process.

Get help

Energy North Ltd inspects shops, units and portable equipment across North, East and West London with City & Guilds certified electricians. EICR from £100. See our EICR service.