Boundary wire, also someone called boundary cable or signal cable, is a must-need installation product for robotic lawnmowers (automower).
There are different sizes and conductors of boundary cables. I’m going to tell you 10 must-know things, and you will become an expert in the boundary-wire market.
#1 Diameter of boundary wire
The most popular sizes in the market are 2.7mm 3.4mm 3.8mm and 4.2mm.
#2 Outer protective layer
there are different materials of the outer protective layer, I’ve seen someone mention it is PVC, which is a mistake. The correct material of the outer protective layer is made from PE, however, there are different PE materials, such as HDPE, LDPE, and LLDPE.
#3 Diameter of conductors (Conductor area)
The diameter of conductors will be changed due to the different quantities of small conductors, normally you will see 29pcs 0.25mm2((square millimeter ) copper wires, which means, the diameter of the conductor is 1.42mm2 (square millimeter).
More diameters of the conductors are listed below:
24pcs 0.25mm2: 1.17mm2
26pcs 0.25mm2: 1.27mm2
Or can be smaller: 24pcs 0.19mm2: then, the diameter is 0.68mm2
The smaller conductor is the lower price of the boundary wire. It is better to compare the prices for the same conductors, not only for the diameter of the boundary wire.
Let me take an example: the 2.7mm boundary wire can have a 1.42mm2 conductor or 0.68mm2 conductor, however, the prices vary.
#4 Material of Conductors
The conductors can be TC, TCCA, and TCCAM. TCCA is the most popular one in the market, if you need low resistance, then, TC is the most suitable one, however, it is the most expensive conductor among them.
#5 Electrical resistance in the boundary cables
TC has the lowest electrical resistance among TC, TCCA, and TCCAM. TCCA is the middle one.
If your boundary cables are for a large lawn, and you need low electrical resistance, then, TC is the most suitable one.
#6 Length of boundary wire
There are 50/100/250/300/500/800M On Plastic/Paper/Wooden Reels.
The length can be customized, someone prefers 400m per reel.
#7 The package of boundary wire
The boundary wire can be packed by paper reel, plastic reel, and wooden reel. As for smaller boundary wire, it can be rolled into a roll.
#8 The installation material of boundary wire
Plastic pegs: 8.5cm long, to fix the boundary wire underground.
Gel connectors: Replace 3M™ Scotchlok™ Electrical IDC 314-BOX
Cable connectors: Docking station connectors
#9 Safety Cable
3-LAYER SAFETY CABLE. (with INFUSED REPELLENT Optional).
We offer a 10-year guarantee against animal bites and most garden tools!
The premium safety cables are more durable with the robot mower’s lifespan
All cables are provided with clear printed meter marking.
Specification
Boundary cable with metal mesh
Insulation: PE
Conductor: TCCA, TC 1.42 mm²
OD:3,8mm 4,2mm
Length: 150m 200m 250m 400m 500m 800m
All cables are provided with clear printed meter marking.
# 10 The price of boundary wire
The changes in prices of copper, aluminum, and PE will affect the price of the boundary wire. Please pay attention to the quotation validity period.
If you want to know more about boundary wires, please feel free to contact us.
