Put simply BS7909 is the British standard to which all event organisers should adhere to when specifying, installing and testing the temporary electrics at their event.

It asks the event organiser to appoint a suitably qualified person to oversee the electrical system.  This person is known as the SPR (Senior Person Responsible).

BS7909 splits electrical distributions into two categories.

Small and Simple Systems are anything under 6kw and cover simple applications such as filming an indoor event or setting up a small indoor display stand with lighting where the power source is taken from existing sockets.

In this case the SRP does not have to be electrically skilled but will need to ensure that all equipment is in good order and has been PAT tested and that the supply has been verified.

Large and Complex Systems cover everything else, including a small single generator setup or simply running an extension lead outside from a building, in this case the SPR must be qualified so as to assess the additional risks and put in suitable protection methods.

Testing is a major part of BS7909 and needs to be carried out by a suitably qualified electrician who has experience in the events industry, that is where TestEvent come in.  We will test your system and provide certification to verify compliance with BS7909.