Medical Electrical Installations – using BS7671(2018), IET Guidance Note 7 and HTM 06-01 (2017).

Duration: 5 – 6 hours in a classroom environment which can also be conducted on-line using Teams and tends to be shorter with experienced electricians.  However, a second face-to-face site visit to a medical location is recommended if the on-line course is chosen.

If delivered on site to the NHS, radiographers, medical physics experts and project managers can attend the first two hours which is delivered in plain English.

The course is for estates engineers, project managers, electrical contractors, medical and x-ray engineers and especially focuses on the relevant points for medical radiological installations.

A short version is available to radiological equipment suppliers that lasts around 2- 3 hours.

Course Contents:

    1. BS7671, GN7 and HTM 06-01 document structure and UK regulatory frameworks.
    2. Governance Process and how to determine the use of a location.
    3. UK regulatory structures
    4. Final Circuits which include Medical IT (blue sockets)
    5. Earth systems and measurement of these earth systems for medical radiological equipment installed in Medical Locations

Fixed-price courses can be varied to suit clients and are not priced on attendee numbers.

The 2017 (April) version of the Department of Health Guidance note HTM 06-01 can be found on the following link: – This guidance document is listed with other HTM’s on –

Contact Ian on

Please note – these are my own definitions that I teach

Recent experience teaching electricians and biomedical engineering students has highlighted that the IEC definitions need to be changed. My course teaching explains this all in more detail and why.

Medical Location:  Room or area where medical devices with applied parts* are used for purposes of diagnosis, treatment including cosmetic treatment, monitoring and care of patients.

Patient (GN 7 ONLY) – 9.4.2  Living being (person or animal) undergoing a medical or surgical or dental procedure.  A person undergoing surgical treatment for cosmetic purposes may also be regarded as a patient.  To me, this means vets and high street cosmetic establishments where medical devices with applied parts are used become a medical location as well.

Group 0.  Pointless

Group 1. Medical Location where supply discontinuity to the Medical Device does not represent a threat to the safety of the patient and Medical Devices with applied parts are intended to be used.

Group 2. Medical Location where supply discontinuity to the Medical Device can cause danger to life and where medical devices with applied parts are intended to be used.

Equipotential Bonding Busbar (EBB).  An equipotential bonding connection point that is the reference measurement point for the medical location and connects the equipotential bonding to one earth conductor that has a direct connection. It should be mounted in the room or area but if outside, it must be within easy reach for earth resistance measurement purposes.

Supply Discontinuity.  Loss of mains supply due to RCD or circuit breaker tripping.

Supply Failure.  The mains network supply into the hospital not present.

Patient Area. Where you fit the Medical IT, SEBCP, no USB sockets and TN-S if required eg x-ray mobile.

Supplementary Equipotential Bonding Connection Point (SEBCP).  A surface-mounted connection point for Potential Equalisation conductors*. An SEBCP has a radial conductor connected to the EBB.

  • As defined by IEC 60601.