智能化工程技术交底
张在玉
XXX Disclosure
ipad定位
粤语谚语Chapter One: XXX
During the laying of pipelines。there should be no wrinkles。dents or cracks at the bends of the pipes。The degree of bending should not exceed 1/10 of the outer diameter of the pipe。and the bending radius should not be less than 6 times the outer diameter of the pipe。The pipe opening at the entry point of the box。or bridge should be flat and free of burrs。The expod pipe opening in the box should be less than 5mm。fixed with a lock nut。and the grounding should be well-connected。The expod thread of the lock nut should be 2-4 turns。and there should be one hole for each pipe。with the size of the hole matching the diameter of the pipe。The pipeline n should be clean and beautiful。and the electrical n should be firm and tight.预算的作用
1) When the length of the pipeline exceeds the following lengths。waterproof and t n boxes
should be added: 30m without bends。20m with one bend。15m with two bends。and 8m with three bends。If it is not possible to add a n box。the diameter of the pipe should be XXX size.
2) XXX.
3) The wiring of weak current systems XXX。but auxiliary power supply circuits with voltages greater than 65V should be XXX for video signal lines and power lines。there should be good XXX interference.
4) When the length of the video XXX needed。a special docking joint should be ud for n。The shielding layer of the shielding wire should be reliably grounded with the upper and lower computers。and the grounding resistance should be ≤4Ω.
5) When connecting equipment。XXX to the terminal。The fixing of the switch must be stable and firm。and the height must be according to the specified standard。XXX.二年级数学练习
6) When laying cables。they must be XXX。During the relea process。the cable must
卓依婷简历not be looped or twisted into waves。If a joint is needed in the middle of the video cable。a special cable head connector should be ud。and multi-strand XXX to the device using a copper wire no.
7) When connecting wires at the equipment。sufficient margin should be left according to the actual n。and the two ends of the wires should be labeled with the wire number provided in the drawing and connected to the terminal according to the number.
8) XXX with infrared ning。and one pipe clamp should be installed every 1.0 meter。on the top of the air duct or bridge.
9) The outdoor pipe well cover should be made into a lawn well cover that does not affect XXX.
10) PE pipes should be ud for outdoor pipes。and the XXX.
户开头成语Chapter Two: XXX
XXX
Before n。the camera should pay n to the following points:
1) The n of the camera should be accurately determined according to the property requirements.
2) 36 XXX.
谢绍敏
3) Choo a n that is XXX.
4) XXX.
5) Monitoring should be installed on the roof and ground of the shops.
