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System for Freeze protection


System for Freeze protection: A facility that installs Self regulating heating cable(carbon heating cable) that produces certain amount of heat in order to prevent pipes of buildings from freezing or bursting in winter, allowing fluent supply of water and freeze protection in facilities.


What is self-regulating heating cable?: It is a cable of which power output changes according to the pipe’s or container’s temperature. It has an infinite parallel structure, so the power output per meter unit is constant regardless of the length. It is designed so that the power output is automatically increased or decreased by controlling the internal resistance according to the surrounding temperature.

동파방지시스템

Structure of self- regulating heating cable for freeze protection

Heating principle of self- regulating heating cable for freeze protection

동파방지열선 제품단면도(영문)

* Increasing the ambient temperature means that the current path becomes more active due to the increase in the current path.
* Increasing the current path reduces the amount of activity by decreasing the current path and decreasing the amount of heat.

Use of self-regulating heating cable for freeze protection

01

Dehumidification facility inside a distributing board
02

Maintenance of pipeline temperature
03

Heating facility for various tanks

Characteristics of self-regulating heating cable for freeze protection

Economical

The PTC characteristic of the carbon heating element causes the heating temperature to increase, reducing the power used, thus saving energy.

Safe

It is a non-electronic magnetic controlled system with no risk of overheating.
The initial load is low when powering on, so it is not blocked as easily as our competitor’s products. The heating difference according to the length and direction is low, allowing for a stable system operation.

Functional

Autonomously senses surrounding temperature and automatically adjusts the cable’s heating accordingly.
As an infinite parallel circuit, users can cut and construct in the field as desired.

Stable

It has gone through a heat treatment or radiation cross-linking process, so there is no corrosion, and the lifespan is semi-permanent.

Example of product information on self-regulating heating cable for freeze proteciton

Product Information

동파방지 제품정보 복사

Product Information (SRL: Self-regulating Low Temperature Heating Cable)

SRL : Self Reguiating Low Temperature Heating Cable
16 : Power output (W/m, 10℃)
2 : Used Voltage (1: 110V, 2: 220V)
C : Woven with hi-wrap wire on top of the 1st insulation layer, maintains mechanical strength, and grounding and screening done on a structure
CR : Structure of 2nd insulation layer of polyethylene on top of woven wire for possible exposure to aqueous solution and mildly acidic or basic substances
CT : Structure of 2nd insulation layer of fluoride resin (Teflon) on top of woven wire with reinforced corrosion resistance and chemical resistance

Specifications of self-regulating heating cable for freeze protection.

Classification	SRL GR 40-2CR
Service voltage	220~240VAC
Bus wire	18AWG
Max. intermittent temperature	85℃
Max. continuous temperature	65℃
10℃ standard, Max circuit length	120m
Product size	(W)10.8mm x (H)6.1mm
10℃ standard, Nominal power output	16W/m()
Certificate

Standard calorific value : 10W/m, 16W/m, 24W/m, 30W/m

Temperature indication of self-regulating heating cable for freeze protection

Max.continuous exposure temperature
: Maintains over 75% of rated output after
processing for 20 years at continuous operating temperature

Max.intermittent exposure temperature, 1000 hours
: Maintains over 90% of rated output after operating 1,000 hours at
Maximum allowable working temperature (accumulation of intermittent time)