NEC MC2400 - Manual (Page 15)

Using This Guide xiii
Safety Notices for Users Outside of the U.S.A. and Canada
! PELV (Protected Extra-Low Voltage) Integrity: To ensure the extra-low voltage
integrity of the equipment, connect only equipment with mains-protected electrically-
compatible circuits to the external ports.
! Remote Earths: To prevent electrical shock, connect all local (individual office)
computers and computer support equipment to the same electrical circuit of the building
wiring. If you are unsure, check the building wiring to avoid remote earth conditions.
! Earth Bonding: For safe operation, only connect the equipment to a building supply
that is in accordance with current wiring regulations in your country. In the U.K., those
regulations are the IEE.