Snow Melting Heating Cable
Snow Melting Heating Cable

■Relnforced Type for concrete

Snow Melting Heating Cable


■General Type for asphalt, concrete

Description
Snow and ice on bridges, asphalt, stairs, walkways, entrance & exit of tunnel may create restrictions in their usage and danger for pedestrians and vehicles. Electric Snow Melting Cable is designed to allow the paving material to absorb the heat from heating elements. When using this electric snow melting cable solution, the embedding of Heatrace® in concrete and under asphalt helps to ensure that the desired electrical heated area remains clear of snow and ice.
Application
Generally, electric under floor heating cable is the most applicable in situations where only floor warming is desired or the area to be heated is relatively small. The electric draw of an electric heating cable can be a limiting factor in designing a system if your electric service is not sized to accommodate it. Electric heating cable is widely used around the requirements of residential and commercial buildings such as condominium pension, villa, resort, church, temple and so on, Also, effectively used for removing of water and moisture.  
Structure
■ Reinforced Type for concrete



NO CONSTRUCTION MATERIAL
1 Heating element Nickel-Chrome Alloy / Nickel-Copper Alloy
2 Insulation Silicone Rubber
3 Inner Sheath Heat resistant PVC (105°c)
4 Braiding Tinned Copper
5 Out Sheath Heat resistant PVC (105°c)


■ General Type for asphalt / Concrete


NO CONSTRUCTION MATERIAL
1 Heating element Nickel-Chrome Alloy / Nickel-Copper Alloy]
2 Insulation ETFE / FET resin (max 150°c)
3 Inner Sheath ETFE / FET resin (max 150°c)
4 Braiding Tinned Copper
5 Out Sheath Heat resistant PVC (concrete) / Heat resistant Rubber(asphalt)
6 Option Stainless steel or Zn-coated steel


Technical Info
■ Heat Loss [experience base]

Extreme cold 250 - 350 W/sq.m
Severe cold 200 - 300 W/sq.m
Mild cold 150 - 250 W/sq.m
Heated floor temp. 5°C ~ 40°C
heating area 0.5 sq.m ~ 24.0 sq.m


■ Calculation for determining the necessary cable length

Stairways no. of stairs x [width(m) + 0.5] x 2 +1(m) for connections
Driveways / Sidewalks Surface area to be heated / Heating cable spacing X 1000
Standard Voltage 220V ~ 440V
T-rating Max 105 °c in continuous use
Wattage 170W ~ 350W / sq.m
Able Space 75mm ~ 125mm


■ Wattage according to temperature & snowfall

Average temp. Snow fall(cm/hr) Crosswalk/road(W/sq.m) Bridge(W/sq.m)
- 2°c 1.7 170 200
- 6°c 2.0 200 250
- 10°c 2.5 250 300
- 15°c 3.0 300 350


■ Calculation for determining the necessary cable length

Purpose Place Capacity(W/sq.m)
  Road & parking lot 300 ~ 350
Snow & Ice Sidewalk & stairway 250 ~ 300
Removing Port & Bridge 300 ~ 350
  Nearby plant 170 ~ 220