Prysmian 6943X Black 3-Core 2.5mm² Armoured Cable 100m Drum (66142)

Thank you for contacting Prysmian Group Technical Support Just to clarify, these armoured cables are not suitable for submersion, therefore we would not recommend using these cables within the pond itself. Such cables as H07RN-F are more suitable so long as you confirm that the actual cable supplied can be submerged. Shoudl you be using our armoured cable to provide power to a junction box near the pond, then subsequently use H07RN-F type, then standard armoured outdoor glands can be used. Prysmian can offer their Bicon branded products but others are widely available. Unfortunately we cannot offer comment on junction boxes themselves. Thank you kind Regards Technical Support

Yes, armoured cables like this are suitable for direct burial. 2ft should be sufficient. This Wiring Regulations says that the cable should be marked with a suitable tape or cable covers and deep enough to avoid reasonably foreseeable ground disturbance.

Assuming you are using this for single phase 230V supply. we would recommend this size for up to 3Amps if installed in 1 length of 100m This is based on acheiving approx 2.5% Volt drop. Volt drop is a linear calculation. i.e if a 50m length was installed then 6Amps would acheive 2.5% For a short length we would recommend a maximum rating of 28Amps. Advice should be sought from a qualified electrcian for a particular installation. Regards