【 Weak current College 】 project management of the

1. engineering design problems frequently

1. electrical

Because the property function, causing a serious shortage of electricity load;

Because of the design features of the property management, resulting in insufficient understanding of electricity wasted public lighting;

Because the user is the second decoration needs a lack of understanding, in the building power supply is not aggressive and load distribution;

Central air conditioning unit cable selection, not use IPB and use more power supply cables to enable parallel generators and restrictions;

2. the central air conditioning systems

The design Department did not consider the difference between day and night air conditioning load of the actual situation, choose the same refrigerating capacity of the unit, resulting in "big horse cart" waste of electricity;

Central air conditioning system back to the air outlet at the back, often ignore the layout is reasonable, it would greatly reduce the cooling efficiency.

3. fire alarm system is an important security property management has not fully consider the second handling city you want to increase the number of smoke machine, check the fire automatic host whether leave enough standby circuit.

II. process recurring problems

1. identification of high-voltage switch cabinet, product quality can not be guaranteed;

2. non-retardant cables, power supply system there are serious risks;

3. the central air conditioning unit cable laying of poor quality, limit the generators;

4. the construction of drainage system is not fully consider the flood control measures;

5. basement construction impermeable, poor quality of the water off the elevator pit;

6. automatic sprinkler system test of not serious, often after the ceiling construction, test leak, causing damage to the ceiling;

7. the central air conditioning system of frozen water system insulation quality, especially the connector with the missing insulation, resulting in a drop of accident;

8. for computer controlled elevator machine room, no serious dust ventilation;

9. diesel generator with load testing, full load test and load dump test to neglect;

10. building construction quality lightning protection system does not meet the requirements, and breaches.

III. acceptance stage of

1. to strictly according to the rules, check the following project data are complete:

Construction basis files: project report, batch files;

Acceptance documentation: project called the knot reports, final acceptance report;

Engineering geological survey reports;

Preliminary design file: preliminary design and technical design documents;

Construction construction and acceptance record: construction management, measurement, inspection records, water supply and drainage, electrical installation, air conditioning installation records;

Completion chart

2. focus on the following documents:

Elevator input test must be approved by the municipal labour and construction elevator safety quality supervision station after acceptance;

Substation must be approved by the city power supply Bureau (or area power supply Bureau) security monitoring acceptance to put into operation;

Central air conditioning system must be qualified by the production plant debugging before officially put into operation;

Fire alarm system must be approved by qualified water works company debugging;

Fire hydrant and automatic sprinkler system must be approved by the municipal fire department acceptance can be put into operation;

Property fully operational before must be approved by the General Administration of quality supervision station and fire departments integrated inspection qualified before they can be put into use.

3. the Division took over the property of the content on the takeover of the property, you should follow before and after your buildings, your public system principles. The takeover of buildings, from the top down, a layer, a layer, a layer; public system acceptance test them one by one, to take over, but first of all deal with supply and distribution system and fire protection system for the inspection.

The building portion of acceptance to take over the content, including:

A. the cell, in ceilings, walls, glass curtain wall, lighting, communication, coil fan, floors, doors and Windows and good health facilities are complete;

B. public channel, public wells, rooms (including rooms, fresh air room, power distribution, cased-hole, cable-well, communications room);

C. on the square, green belt, parking lots, driveways, air-raid shelter layers, device layer, make a record.

High-voltage distribution and low-voltage power supply system: give, take over the drainage system check acceptance;

Central air conditioning and ventilation systems;

Elevator, escalator inspection and acceptance;

Fire system check acceptance;

Communication system check-over;

TV and security system check.

4. the fire hydrant system and automatic sprinkler system must be qualified by the construction of unit post, is in the standby mode;

5. must scrutinize the second decoration drawing;

6. the provisions of the Fire Department report: building area over 80m2 of decoration works, must be approved by the fire department.