1. 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.
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.
2. Cable Construction
1) 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) |
2) 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 |
3. Model List
|
Product |
Wattage per Meter (W/M) |
Length (m) |
Remark |
|
|
230V |
380V |
|||
|
YSM1-1050 |
YSM2-1050 |
35 W/M |
30 |
|
|
YSM1-1400 |
YSM2-1400 |
40 |
|
|
|
YSM1-1750 |
YSM2-1750 |
50 |
|
|
|
YSM1-2100 |
YSM2-2100 |
60 |
|
|
|
YSM1-2450 |
YSM2-2450 |
70 |
|
|
|
YSM1-2800 |
YSM2-2800 |
80 |
|
|
|
YSM1-3150 |
YSM2-3150 |
90 |
|
|
|
YSM1-3500 |
YSM2-3500 |
100 |
|
|
|
YSM1-4900 |
YSM2-4900 |
140 |
|
|
|
YSM1-6300 |
YSM2-6300 |
180 |
||
4. Technical Infomation
1) 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 |
2) 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 (T5) |
| Wattage | 170W ~ 350W / sq.m |
| Able Space | 75mm ~ 125mm |
3) 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 |
4) 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 |
