The authorities of HK has a guideline to teach the contractor of T & A ; C process of electrical services. The testing process proceeded normally in building phase and the participant of review included E & A ; M applied scientist, chief contractor, electrical subcontractor and specialist electrical power provider. Besides they were trials and carried out on different systems of the installing during building to guarantee their suitableness for operating at the design conditions, certifications of such trials shall be issued together with certifications of any work trials.
The testing of plumbing & A ; drainage are needed in building phase besides review and testing by license pipe fitter. When the drainage pipes were connected below land degree. The contractor shall advise the DSD, through the PBSE on the completion of the installing and its preparedness for review and proving. In instance it will non impact the advancement of farther building. The participant of review included chief contractor, P & A ; D contractor, DSD ‘s representative and E & A ; M applied scientist. The T & A ; C process is normally look into such as pipes connexion, hydraulic gradient of drainage pipes, stuffs, size of pipes and H2O trial or force per unit area trial of pipes etc.
The testing of HVAC system is needed in building phase. When the plants started until the plants were completed and trial by qualified shopkeeper. If whole plants were completed of HVAC system. The contractor shall advise the appropriate Authority, through the PBSE on the completion of the installing and its preparedness for review and testing. The participant of review included chief contractor, HVAC subcontractor and edifice authorization. The T & A ; C process is normally cheque with HVAC system such as packaged H2O hair-raisers, air-cooled hair-raisers, chilling towers, pumps, pump alignment trial, air managing units, heating spirals ( Not included in air managing unit ) , canals, wickets, diffusors and fan spiral unit etc.
The testing of TELVS is normally in completion phase besides review and testing by qualified lineman. A ocular review shall be made to verify that the electrical installing /equipment as installed is right selected and erected in conformity with the codification of pattern and that there is no evident harm besides check the maps of all protective devices and maps of all points of equipment.
The testing of lifts and escalators are needed in installing phase besides review and testing by qualified shopkeeper. Certain trials will be carried out on different systems of the installing during building to guarantee their suitableness for operating at the design conditions. Prior to the installing, certain trials and reviews shall besides be carried out to guarantee that proper stuffs and equipment following with the specification are provided and that the site conditions are satisfactory and suited for the executing of the installing. The contractor shall advise the EMSD, through the PBSE on the completion of the installing and its preparedness for review and testing. The participant of review included chief contractor, specializer or lift ‘s contractor and EMSD ‘s representative. The T & A ; C process is normally look into such as lift installing, escalator and rider conveyer installing, perpendicular lifting platform installing and stairlift installing etc.
A list of plants and installing necessitating everyday care such as lifts and escalators, CABD, CCTV, electric wiring, F.S. panel, security panel, type and stuff of finish, fresh and flush H2O pipe work, control valves, belowground foul and storm H2O drainage system. Besides the recommended care rhythm for the above should stated as difference installing have a difference care rhythm to optimise the efficiency.
Some of the installings such as lifts, escalators and roofing have guarantee and warrant provided by the contractors, so the information as inside informations of guarantee and warrant, name of supplying company, contract point and the cogency period should stated in the manual for easy trailing and speedy referencing.