GP Self-regulating Cable for gutters & downpipes, Pipe freeze & gutter protection by BN Thermic

GP

Self-regulating Cable for Gutters and Downpipes

• Prevents accumulation of ice in gutters and downpipes
• Prevents damage to gutters and downpipes
• Ensures that rain and melt-water can drain away normally and not cause damage to properties
• Prevents danger to people from collapsing gutters and falling icicles.

Typical Applications

The GP system is ideal for both domestic and commercial installation.

Features

• Energy saving self-regulating cable – output reduces as ambient temperature rises
• Self-regulating technology  eliminates ‘hot spots’ and failures caused by cables touching or crossing
• Parallel cable technology allows cable to be cut to length on site without affecting watts per metre output
• The cable’s Polyolefin sheath is UV resistant ensuring long operating life in exposed areas
• ‘Gel’ filled power connector and end seal allow quick installation without the need for a heat gun or crimp tool.  The high-tech insulating gel allows safe and secure joints and terminations to be made in a few minutes.

Controlling GP Self-Regulating Cable

Choose between manual and thermostatic control.

Manual control by means of a simple switch is commonly adopted for small domestic installations. 

For larger installations we recommend control by means of a GP-T electronic thermostat. 

The problems associated with snow and ice occur when the ambient temperature is between +5⁰C and -5⁰C.  To ensure maximum economy, the GP-T has two set-points.  In this way the system will be switched off when the temperature is either too high or too low for problems to arise.

The GP-T should be mounted externally in a sheltered location.  The thermostat conforms to IP65.

Selection

Gutters

For gutters up to 120mm wide use a single run of GP-18 cable.  For wider gutters use an additional run of cable for every additional 120mm increase in width.

Downpipes

For downpipes at the end of a gutter, a single run of GP-18 will be required with cable extending approximately 500mm below ground level.  The gel filled end seal will be applied to the end of the run.

For downpipes which interrupt a gutter, a double loop of cable should be installed with the end of the loop extending approximately 500mm below ground level.

Strain relief will be required for downpipes longer than 34m

Terminations

 BN Thermic’s gel filled termination devices should be used.  Each cable run will require 1 x GC-P connector and 1 x GC-E end seal.  The GC-P should be mounted in a sheltered location and is used to connect the heating cable to the power lead (a 2.5mm² twin and earth cable is recommended).

The GC-E is used to seal the end of a cable run.

Spacer Kits

Each GP-S spacer kit consists of 5 stainless steel spacers and 10 UV resistant cable ties.  The spacers are used to protect the cable as it passes over a sharp edge and to maintain the correct spacing when multiple cable runs are installed in a gutter.

GP-18 Specification

Roof Protection

In areas subject to severe climatic conditions it may be necessary to protect the lower edge of a pitched roof.  GP-18 cable is ideal for this application.  Please call the BN Thermic sales office to discuss.

Please note that GP-18 is not suitable for use with bitumen or tar related surfaces such as roofing felt.

GP Gutter Protection Cable - Specifications

Breaker Selection for GP Self Regulating Cable

Use type C breaker

Product information downloads

• Download a PDF specification for easy printing
• Download a PDF of our instruction sheet