College】 【weak principle of the device layer piping..

Principle layout of the device layer <BR> <br>: <BR> 20 layers of high-rise buildings within: should set in the upper or lower layer of a device layer <BR> 30 high-rise buildings within .: should set the upper and lower layers of two devices. <BR> 30 or more layers of high-rise building: should be in the upper, middle and lower layers are located equipment, piping <BR> device layer principle: < .; BR> h ≤ 2.0m from the ground layout of air conditioning equipment, pumps and other <BR> h .= 2.5 ~ 3.0m layout hot and cold water pipes <BR> h = 3.6 ~ 4.6m furnished air-conditioning ., ventilation ducts <BR> h> 4.6m arranged layers of wire and cable <BR> <BR> high rough <BR> construction equipment. Area (m2) device layers high (m) floor area (m2) device .layers high (m) <BR> 10004.0150005.5 <BR> 30004.5200006.0 <BR> 50004.5250006.0 <BR> 100005.0300006.5 <BR>. <BR>..