Product Details
High mast lamp
Design criteria: AASHTO
Design wind speed: more than 30m/s
Seismic intensity: greater than level VII
Rod body material: ASTM A572 GR65\Q345\Q235
Mast shape: 12\16\20 edge shape of a pyramid
Assembly process: plug-in type
Antiseptic craft: hot-dop-galvanization\ hot-dip-galvanization and powder
Crown
The prmary function is to lighting. All crowns are constructed form high-quality steel, both inner and outer surfaces are processed by hot-dip-galvanization
1. Raising-and-lowering high mast lighting is mainly consists of four parts: the mast, raising-and-lowering system, crown and lighting fixture
2. The raising-and-lowering system is the core part of the raising-and-lowering high mast lighting, is the biggest safeguard for whole high mast lighting normal operation and safety use.
The series of yuntong raising-and-lowering system mainly consists of lighting rod, enclosed the top pulley assembly, latching mechanism, crown, steering arm, bumper, cables, winch, motor, lighting control cobinet, raising-and-lowering control cabinet and so on.
Quality and performance of yuntong product
Material: Φ20 round steel
Length:1300mm
Shielding angle: 45°
Process: hot-dip-galvanization and copper pour the top
Enclosed mast- top pulley assembly
Pulely assembly consists of 3 sets of steel cable pulley arms that each set at an angle of 120 degrees to anthor and 1to 3 sets of power cable pulley arms. Stationary power pulley and removable power pulley are offered to choose from.
All inner and outer components are made of 304 stainless steel which has enough strength and anticorrosive property.
Latch Mechanism
Latch barel was installed on the mast- top pulley assembly,aluminum alloy die-casting latch barel and cast steel latch barel are offered.A set of height restriction system was installed in the latch barel. The loaded steel cable will never get exposed in the ouside environment which can extend the service life of the steel cable.
Stainless steel center finding rotary latch pin moves up with the crown,approaches the latch barel witch was installed on the mast- top pulley, moves along the track in the barel ,makes the crown fixed on the top pulley,unloades the steel cable.The crown was kept steady and horizontal in the whole process mentioned above.
Crown horizontal adjustment assembly was easily and quickly to used.
Special designed red-flag indicator was appeal to the eye，reflects the status of the latch mechanism accurately and makes the operation easier and visualable.
Support ring
Support ring was a stamped low carbon steel plate which has been hot dip galvanized.The latch pin,steering assembly,cable holding disk,bumper and crown were all installed on the support ring,making the support ring the core component.
Steering assembly
Steering assembly consists of 3 sets of mutual correlated steering arms,polymer rollers,springs.This unique design can avoid the crown off-center caused by quake or loading during the rasing and lowering,protect the coating of the mast surface.
Bumper and horizontal adjustment assembly
The bumper is designed on the crown,can avoid the damage caused by the direct collision between the rasing crown and the mast-top pulley.
The horizontal error within 3 cm of the crown can also be ajusted by adjusting the bolts on the bumper.
Cabels
YC heavy robber sheath cable power cable and hot-dip-galvanized steel cable were default providing，stainless steel cable and other requires of the cables can be also accepted.The steel cable was protected in a webge machanism at both end which were drive disk and bumper.The safety factor of the main steel cable is 8,the secondary steel cable is 6.
Winch
The multifunctional，reliable，smart-structure winch with patented technologies was specialized designed for rasing-and-lowering system by YUNTONG HIGHMAST independently.
The main functions
Unique anti-slip device,beside screw gear self-locking,one-way damper with patented invention was also equipted to make sure safety.
Steel cable locking device.
Sealed screw gear box rejects dust,water getting into machine.
Electrical devices
Highmsat lighting’s electrical devices include motor,lighting control cabinet,rasing-and-lowering system control device,junction box etc.
The motor option is external or internal;the rasing-and-lowering system can be operated by both electrical power and man power.
Remote control enables operator to stand at a safe distance (5m)when lowering operation.
Air swich is used for lighting control,overload and short-circuit protection is provided.the air industrial standard socket is used for connecting power cable within the mast,and spare cable and socket is equiped for testing purpose when in the lowered position.
The junction box is stainless and fit on the luminaire support ring.
http://www.yt-highmastlighting.com/
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