Specification
test method
3. Density: 1650-1750 kg/m ³
4. Fire resistance performance: exposed to a fire source at 800 ℃ for 15 minutes
5. Load capacity of the trough box: uniform load of 80kg/m, concentrated load of 180kg/m.
6. Smooth, flat, and crack free appearance.
7. Shielding performance of slot box:
8. Usage environment:- 40～80℃
9. Temperature grounding: There is angle steel inside the groove, and the sections are connected by leads.
ZBQ type, category, specification, type, section length
Use 3, 4, 5, 6, and 8 to represent the length of each section, and a 2-meter span does not require a standard.
The regular type does not require a standard, while the shielded type is represented by B.
Use 01, 02... 22 to represent specifications or specification numbers (represented by Arabic numerals or English letters)
Indicate category type number (represented by Arabic numerals or English letters)
Representing structural form (using the capital letter of the first Chinese Pinyin)
D is a large-span type, T is a ladder type, P is a tray type, and C is a trough type. Indicating the load capacity of flame-retardant fiberglass cable tray
Z-B Q-C, P, T ordinary load curve diagram (recommended span for ordinary support)
≤2000mm)
Model representation method
index
When the height of the bridge is 50 and 100, there are 6 connection holes at each end, and when the height is 150 and 200, there are 12 connection holes at each end.
★ Support spacing: The support spacing should be less than or equal to the allowable load of the load curve and the support span.
★ Bridge width: When selecting the width of the cable bridge, a certain amount of spare space should be left for adding cables in the future.
★ Separate installation: When there are few power cables and control cables, they can be installed on the same cable tray, but a partition must be used in the middle to separate the power cables and control cables
Install cable isolation devices.
★ Cable fixation: When the cable tray is horizontally placed, the connection between the trays should be set at 1/4 of the span as much as possible. Horizontal cables run every 2 meters
Fix left and right, and fix vertical cables every 1.5 meters or so.