The office property was fireproof once and we checked in. There is no secondary transformation and rectification, so it is necessary.

1, generally speaking, you need to find the property first, get the phone number of the fire maintenance unit from the property office, and then provide the design drawings to the maintenance unit. They will redesign the fire protection according to your drawings (some are designed by the decoration company and handed over directly to the maintenance unit), and calculate the price according to the project quota. Here, what I want to say is that the cost of spraying transformation is not very high, mainly the cost of iron pipes and labor. The main cost is the equipment cost of the smoke sensor, depending on the original system brand, ranging from domestic brands to imported brands of 300-5000/ set, and the normal average cost (area greater than 300 square meters) is between 80- 150/ square meter.

2, the fire as far as possible to find maintenance units, because they do maintenance and access to the whole building system, and familiar with the property relationship. Finding a second home has several disadvantages: A property acceptance requirements will be very strict, and a third-party inspection report (3000) may be needed. B I don't know the password of the smoke centralized control system, but I have to contact the maintenance unit. Of course, I would be embarrassed. C. the construction period is delayed due to various aspects of non-cooperation. So I don't want to find a second company to do it, but I can use the quotation of the second company to suppress the price of the maintenance unit.