Í NDICE DE TABLAS
Capítulo 1. El Sector de la Construcción
1.2 LA INFORMACIÓN DEL SECTOR DE LA CONSTRUCCIÓN
1.2.1 La información nacional del sector de la construcción
High level
High – High level alarm 18.10.7 Air Handling Unit
Running/off
Filter differential pressure: analog
Valve position
Supply air temperature: analog
Return air temperature: analog 18.10.8 Thermostat
Analog Temperature
Contact state
Switchpoint/Setpoint18.10.9 Chiller
High interface level18.10.10 Multi-Function Meters or electrical switchboards
IP Interface to pick up all analog signals (V, A, kW, kVA, kWh, PF, harmonics – for each phase and 3Ph)
Protective device status 18.10.11 Irrigation Valve
Input: Open/Shut
Output: Open/Shut19 PAINTING AND FINISHING
19.1 General
Provide factory shop coat of a paint for all metal items of equipment such as panels, switchgear, fixtures, as herein described on the following colour code. All conduits, cabinets, boxes, enclosures, panels etc.
shall be painted. Items not specifically mentioned in the colour code shall be as directed. All steelwork shall be new and free from rust and scale before fabrication.
Thoroughly rub down after fabrication and coat with approved etching type, rust inhibiting primer and then carefully fill. Finish to a glossy motor body finish with at least two coats of sprayed enamel of selected colour applied and dried in accordance with the paint manufacturer's recommendations.
Touch up painting of equipment scraped or damaged in handling shall be carried out as follows:
(a) Refinish with primer and final coats to restore the surface to its specified condition in regard to colour, finish, and quality. Overall steelwork shall have uniform appearance. Spot repainting which permits colour difference to show is not acceptable.
(b) Furnish and install protective measures for all exposed surfaces during the construction phase of the job and up to the time of Practical Completion. These protective measures shall be approved by the Consultant. Remove protective materials at the time of Practical Completion.
19.2 Colour Code
Table 6 Colour code
Equipment or Service Base Colour or Colour Patch Letter and/or Label
All Hangers Black
Steel Conduits Black
Switchboards & Distribution
Switchboards Standard Colour to be advised As designated on drawings
Cable Trays Hot Dip Galvanised To be advised
20 TESTING AND COMMISSIONING
20.1 General
It is the intent of these specifications to ensure that all workmanship, all materials employed, all required equipment, and the manner and method of all installations conform to accepted construction and engineering practices, except as modified herein, or by manufacturer instructions and that each piece of equipment is in satisfactory condition to successfully perform its functional operation. All testing shall be in compliance with BS 7671 and Guidance Note 3.
All testing shall be scheduled and cleared through the Consultant. No testing of any kind shall be done or scheduled without his clearance.
Complete test and inspection records shall be made and incorporated into a report for each piece of equipment tested. All readings taken shall be recorded.
Notify by letter all the interested parties at least 7 days prior to test, establishing the time the tests are to be performed. Supply necessary meters, instruments, temporary wiring and labour to perform all required tests and adjustment of equipment and wiring installed and connected under this contract including the electrical equipment furnished by others to determine proper polarity, phasing, freedom from earths and shorts, and operation of equipment, meters, relays etc.
All materials and manner of installation shall be in strict accordance with applicable requirements of the Local Authorities and the Wiring Rules. The installation must pass all inspections, and will be subject to approval. Wherever any of the aforementioned codes, laws etc. require any work to be tested or approved, provide proper facilities for such access and for inspection, all at his own expense.
Tests shall be made for continuity and identification of each conductor. Both ends of a given conductor shall be identified alike. Before circuit terminal connections are made, continuity and identification shall be checked by means of a DC test device using a bell or buzzer or battery powered phone to ring out the wires.
All earth tests shall be made with 1000 Volts megger test type instrument.
Test each circuit for grounds and shorts by means of a megger insulation testing instrument which shall impress a voltage of not less than 500 Volts D.C. upon the circuit under test. Any circuit showing a low insulation resistance shall be investigated and faults corrected. All circuits under megger insulation test shall be connected to respective final terminals and switches to breakers in the OFF position.
Correct or replace any nominal current carrying circuit which is defective or earthed. Also correct all troubles encountered by test and set breakers and relays as directed so that equipment will be in proper operating condition before being placed in service.
Following established procedure, equipment will be energised after certification that the installation is satisfactory. Final operational tests shall determine that the wiring connections are correct.
20.2 Test Instruments
All instruments and appliances required for testing shall be furnished for the duration of the tests.
Gauges, thermometers or other instruments specified as a permanent part of the installation may be used for testing purposes.
Test instruments shall be tested for accuracy by a NATA. approved laboratory and recent test certificates shall be made available to the Consultant prior to site testing.
20.3 Test Report Terms
The results of all testing shall be submitted to the Consultant in a neat and legible manner.
20.4 Commissioning
After completion of the installation all parts of the Plant shall be set into operation and shall be adjusted to accord with the drawings and Specification.
All testing results shall be tabulated and submitted to the Consultant prior to acceptance testing. The information shall include all relevant data necessary for evaluation of plant performance.
During this period instruct the Principal’s nominee as and where required in the operation and maintenance of the plant.
21 SERVICE AND MAINTENANCE
21.1 Scope
The length of the Maintenance and Defects Liability period is to be as specified in Section 1.4. Carry out regular inspections at periods not greater than one calendar month, and shall fully service and maintain all plant for the term of the Maintenance and Defects Liability period.
The work required is:
a) Attend the site regularly to perform maintenance required by the equipment manufacturers and as detailed in the Operation and Maintenance Manuals.
b) Attend the site at any time during the specified Contract maintenance period, on request by the Consultant or Principal, and carry out remedial work necessary to keep the plant in good operating condition.
c) Make good any defects at the time of practical completion and all other defects which become apparent during the contract maintenance period.
21.2 Service
Undertake to provide a comprehensive breakdown service whereby a qualified mechanic attends the plant as soon as practicable after a breakdown is reported, and carries out immediate remedial work.
Failure to attend the plant within eight (8) normal working hours of notification of a breakdown, and where remedial work is interrupted during normal working hours for purposes other than obtaining spare parts from the nearest source, will provide the Principal the right to order such action as may reasonably expedite completion of remedial work. All costs will be deducted from the retention monies.
For the purposes of this Clause, "nearest source" shall mean Hanoi, Thailand, Singapore, Kuala Lumpur and in the event that parts are not available there, they shall be obtained as expeditiously as possible by special courier or express air freight as necessary.
21.3 Service Reports
During each visit complete a report in the form of a check list which shall indicate the readings of all gauges, the condition of all items, any remedial work carried out, and the wet and dry bulb temperatures of the outside air.
Service reports shall be completed and signed in triplicate, and counter signed by the Principal's nominated representative.
One copy of the report shall be retained by the signatories, and the third copy shall be forwarded to the Consultant within forty eight hours.
Final payment of retention monies will only be certified pursuant to receipt by the Consultant of Service Reports which indicate that the Maintenance and Service requirements have been regularly and satisfactorily carried out.
Submit for approval a sample Service Report in sufficient time for possible amendments required before Practical Completion.
21.4 Maintenance Schedules
Prior to commencement of the maintenance/defects liability period prepare and submit a detailed maintenance at each maintenance visit The Sub Contractor shall: schedule outlining maintenance checks and all works and/or parts to be provided during this period. Each maintenance visit shall also be scheduled with date and estimated length of visit nominated.
At each maintenance visit The Sub Contractor shall:
Prove correct operation of main switchboard
Prove correct operation of distribution boards
Prove correct operation of light fittings and controls
Prove correct operation of any other item as directed by the Principal or Consultant
Repair or replace all defective items at The Sub Contractors own expense and at a time convenient to the principalIn addition to the monthly maintenance schedule The Sub Contractor shall, at intervals not exceeding six months:
Thermal scan main switchboard and distribution boards
Carry out emergency lighting tests in accordance with BS 526622 OPERATING AND MAINTENANCE MANUALS
22.1 General
On completion of satisfactory Performance Tests and prior to Practical Completion, supply to the Consultant one copy of the Operating and Maintenance Manual for review and approval.
Once reviewed and approved, four copies of the approved manual shall be provided.
The Manual shall include a full description of the installation and function of the various systems involved, together with instructions to cover every action necessary for the efficient operation and maintenance of the installation(s).
The Manual shall be neatly prepared and bound in a vinyl hard back folder with embossed lettering on the front in the format approved by the Consultant.
In addition, the words "Operating and Maintenance Manual" and the project name shall be embossed along the spine of each folder.
22.2 Manual Contents
The contents of the Manual shall generally take the following format:
a) Emergency Information
This shall be a single page which lists contact numbers for emergency service.
b) Index
The Index shall be divided into each section which shall include lists of drawings, equipment and similar items for quick reference.
c) Section 1 - General Description
This section shall be divided into sub-sections for each system as appropriate. A full description of the systems installed including method of control shall be included.
d) Section 2 - Plant Operating Instructions
This section shall be sub divided into the various systems and a complete description and correct sequence of all actions necessary to start up, operate and shutdown all plant for automatic test and emergency operation shall be included.
The instructions shall include all necessary instructions for the correct identification of malfunction of the plant together with the existence of hazardous conditions.
e) Section 3 - Installation Maintenance & Operating Instructions
This section shall be divided into the various systems and manufacturer's installation, maintenance and operating instructions shall be included for each item of equipment. A comprehensive maintenance schedule to be followed throughout the Maintenance and Defects Liability Period shall also be included.
f) Section 4 – Equipment
This section shall be divided into the various systems and shall list all major items of equipment installed complete with manufacturer's name, model, and/or Type No., Serial No., size design ratings. (i.e. all relevant data necessary for re ordering or replacing).
All equipment shall be broken down to individually identifiable items.
g) Section 5 - Commissioning Test Reports
This section shall include all test and commissioning results sheets.
h) Section 6 - Installation Drawings
This section shall include all "as installed" post contract drawings as specified reduced to A3 size.
22.3 As Installed Drawings
In accordance with earlier clauses of this specification, as installed drawings shall be correctly brought up to date to present a true and accurate representation of the actual installation and to a scale of not less than 1:100.
The aim of the drawings is to give a full and complete picture of the entire project as it has been built.
Generally the "as installed" drawings shall include the following:
a) Complete ceiling and floor plan layout drawings showing the actual sizes and locations of all ducts, cable trays, conduits, sub-main cables, light fittings, thermal detectors, speakers, outlets and all other equipment.
b) Complete equipment layout drawings with full identification of each and every item of equipment.
c) Complete and up to date set of all submitted shop drawings.
d) Complete electrical wiring schematics clearly showing terminal numbering system.
e) Complete schematic and control diagrams of all systems incorporated in the installation. The drawings shall show all motorised, automatic and hand operated controls and all similar items relevant to the function of the installation. Where applicable the drawings shall also include the settings and differential bands of all controls, cut outs and other variable or adjustable items. All items must be clearly identified as to type and function.
22.4 Principal Instructions
The services of a commissioning engineer shall be provided for the period as required to instruct the Principal’s nominated representatives in all details of the operation of the complete installation.