Weak current College】 【Cable Tray common specifications.

<br> <br> XQJ slotted cable tray selection: <br> XQJ-X-1A trough pass-through <br> XQJ-X-2A level siphon <br> XQJ-X-3A horizontal tee <br> XQJ-C .-4A horizontal four-way <br> XQJ-C-4B on vertical diameter stone <br> XQJ-C-06A, B, C, D-type connector reducer <br> XQJ-C-3G under vertical tee <br> .XQJ-C-3B straight tee <br> XQJ-C-3C under vertical tee <br> XQJ-C-2B vertical diameter on siphon <br> XQJ-C-2C vertical diameter of siphon <br> XQJ-C-2D .vertical diameter lower siphon <br> XQJ-C-3D top vertical tee <br> XQJ-C-3E bottom vertical tee <br> On the left vertical XQJ-C-3F tee <br> XQJ-C-2E vertical diameter lower .siphon <br> XQJ-C-2F vertical diameter upper siphon <br> XQJ-C-2G vertical diameter upper siphon <br> <br> Trough (all closed) cable tray common specifications are: <br> 250 × 250150 × 250150 .× 300100 × 250150 × 200 <br> Cascade type cable tray common specifications are: <br> 100 × 150 × 200 200100 × 600 150 x 600 <br> 100 × 150 × 800100 × 800 500 150 x 500 <br> 100 × .300 × 150 × 150 × 300100 400 400 <br> <br> Cable Tray specification indicates that the method: <br> XQJ-forms-category-specifications <br> XQJ series representing meeting line cable tray <br> Representation of the structure .(the first Chinese pinyin capital letter T as the cascade type, P for tray type c is a modular trough, ZH) <br> Class represents a category type serial number (in Arabic numerals with English letters) <br> Specification represents a specification .or standard serial number (in Arabic numerals) <br> <br> Cable Tray size selection and calculation: <br> Cable Tray load G total calculation G total = n1q1 + n2 + q2 + n3q3 + ... ... <br .> Type: q1, q2, q3 ... The cable length of weight per unit (kg / m) <br> n1, n2, n3 ...... Number for the appropriate cable G should be less than the allowable load .cable tray (reference load curve chart) <br> When cable tray in outdoor or belt guard is also included in the water and wind, and other factors. <br> Cable Tray width calculation of d: 1, power cable <br> b .= n1 (d1 + k1) + n2 (d2 + k2) + n3 (d3 + k3 )+......< br> Type: d1, d2, d3 ... ... The cable diameter; for n1 ., n2, n3 ... ... As the number of the cable diameter; <br> k1, k2, k3 ...... For cable spacing (K value for the minimum should be no less than d / 4) .<br> Control cable tray width b of calculation: (General Cable Tray fill rate from 40%) <br> The total area of the cable contains: S0 = n 1 π (d1 / 2) 2 + n 2 π (d2 / .2) 2 + ... <br> Needs of Bay area transverse load: S = S0/40% S = S / h = h S0/40% <br> Type: h-cable bridge height measured. <br>.