Earth Reference Bar (ERB)

An earth reference bar is provided for all group 1 and group 2 locations.

Brandon Medical's earth reference bars adhere to MEIGaN standard to cover the following aspects:

1) The mains supply protective conductor entering the location shall be terminated at the ERB.

2) The ERB shall be close to the mains supply isolator except with MR units.

3) The ERB shall be installed in an accessible position, to facilitate easy visual inspection and testing, not higher than 1.8m and not lower than 1m measured from the floor.

4) Circuit protection and potential equilisation conductors shall have crimped connections.

5) All circuit protective conductors shall be identified, and a list of connections made, a copy of which shall be available in the ERB cabinet. Equipotential conductors from the socket-outlets shall be identified as either 'Medical Location of Group 1' or 'Medical location of Group 2' as appropriate.

6) All installed equipment shall be earthed to the ERB if there are any conductive surfaces that are accessible to either patient or staff.

7) All non powered equipment with metal surfaces shall be similarly bonded to the ERB.