Birmingham Children's Hospital NHS Foundation Trust is seeking a contractor to undertake the compliant testing of the site's low voltage electrical infrastructure. It is anticipated that 20 % of the site will be tested in each of the next five consecutive years after the award of the contract. All testing must comply with BS7671, the Electricity at work act 1989 & guidance note 3 (inspection & testing) of the current edition of IEE Wiring Regulations at the time of the award. Electrical services.