HOFR cable 10mm 16mm - does not exist

[kim_l_fixit]

Heatrae Sadia Amptec 12 KW Boilers states HOFR cable must be used

10mm or 16mm HOFR does not exist.

Would fibreglass sleeving be suitable fitted on standard cable inside unit?

 

[Sidewinder]

kim,

Is this a single phase boiler?

As if it is 3 phase then you will not need 10mm, or 16mm sq cable.

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Batt do it in various sizes,

Try here:

638TQ cable | H07BN4-F Cable

& here for the spec sheet

http://www.batt.co.uk/upload/files/638tq_1280148992.pdf

3 & 4 core from 4mm sq to 300 mm sq, 5 core 4mm to 95mm sq.

Any use?

 

[kim_l_fixit]

This ones a single phase 220v unit, but you can put up to three 12KW together, then obviously it would need three phase one per unit to balance it out.

Normally I would fit 16mm to mini distribution sub board with 63amp breaker as dp isolator and 10 mm down to unit with fibreglass sleeving on tails inside the unit for fire/heat protection....Incoming mains into boiler is close to heat exchanger which is copper and heating at 85 Degrees, I always leave airspace between this and cable sleeving.

 

[Sidewinder]

kim,

If it is a single phase unit then the 3 core H07 will do you fine this is available in 4, 6, 10, 16, 25 and on up to 300mm sq

You don't "have" to balance 3 ph supplies but it is better

 

[PC Electrics]

You sure that's not H07RN-F? Available by the meter from Edmundsons and probably perfect for this application.

 

[kim_l_fixit]

thanks for the info lads newie's said max was 6mm