Aluminium cable 4x240mm2

Aluminium cable 4x240mm2 on the worksite

Cables are the part of a site installation that is handled most and inspected least. Choosing the right type and cross-section is what keeps the installation safe over the whole project.

Where Aluminium cable 4x240mm2 is used

Typical sites are construction projects, renovations, industrial maintenance and event power. What they share is that the electrical supply is temporary and the conditions are demanding.

Temporary does not mean lighter requirements. Site equipment is exposed to dust, moisture, moving and mechanical stress in a way that fixed installations never are.

Check the load distribution between phases during use. Uneven distribution overloads one phase while the others run half empty, and the usual symptom is a fuse that keeps tripping.

Aluminium cable 4x240mm2 – how to choose the right model

The cross-section is chosen by load current, installation method, ambient temperature and cable length. The sizing is done by a designer or an electrical contractor – cable is not chosen by eye.

Aluminium conducts less well than copper, so the same current needs a larger cross-section. This has to be taken into account if a copper cable is replaced with aluminium.

On long runs, voltage drop decides the sizing more often than current-carrying capacity. On site this shows up as machines far from the board starting sluggishly.

Other models of the same type are Aluminium cable AXCMK 4×16 + Cu 10mm2, Aluminium cable AXCMK 4×25+Cu 16mm², Aluminium cable AXCMK 4×35+Cu 16mm², Aluminium cable AXCMK 4×50+Cu 16mm², Aluminium cable AXCMK 4×95+Cu 29mm².

You can see the full range in the product group, and read about real-time monitoring on the Spine page.

Practical notes for use

On a site the cable is exposed to mechanical damage from machines, tools and traffic. Protect cables in walkways and lift them off floor level wherever possible.

Store the cable on a drum and under cover, and mark the remaining length. Most of the waste on a site comes from nobody knowing what is left on the drum.

Calculate the length along the actual route, not as the crow flies. Cable routes go around structures, and a cable that ends up too short means an extra joint – and a joint is always a weak point.

Aluminium cable 4x240mm2 – installation and maintenance

Installation and connection work is carried out by a qualified electrician. The equipment must be made dead before connection work, and the absence of voltage verified by measurement.

Unwind the cable before loading it. A cable left on the drum cannot cool and heats up in the coils even when the current stays within its rating.

Check the sheath before use. A cut or crack removes the cable’s protection, and the damage is not repaired with tape – the cable is replaced or re-terminated.

Do not go below the permitted bending radius and never pull a cable by its conductors. Both damage the construction permanently even if the fault does not show immediately.

Check the joints and fixings regularly during use. A joint that heats up is a sign of a fault and should be corrected before the fault spreads.

Safety and inspections

Site electrical installations are subject to the same requirements as fixed installations, and some of them are stricter. The equipment has to withstand moving, dust, moisture and mechanical stress for the whole project.

The installation is inspected at commissioning and regularly during use: enclosure, joints, the operation of the protective devices and the fact that live parts cannot be reached.

Damaged equipment is not repaired improvised on site. A cracked enclosure, a burnt terminal or a damaged socket is replaced – on a site a temporary repair almost always becomes permanent.

Document the configuration and any changes made. Up-to-date information on outputs and protection speeds up fault-finding and the next inspection.

Delivery and sizing help

We deliver the equipment together with the cables and the rest of the site power supply in one delivery, so the set is complete when it arrives on site.

Describe the whole site in your request for quotation: supply power, the outputs needed and the estimated length of the project. We size the set on that basis.

Use the product number 112009 when ordering and when asking about spare parts. It identifies this exact model, which matters when the same series comes in several sizes.

We also help with the sizing. If you are unsure about the size or the number of outputs, ask us – equipment sized wrong costs more than equipment chosen right the first time.

Aluminium cable 4x240mm2 – technical data

Handling temperature	min. -20°C
Max. conductor temperature	90°C
Uo/U	0,6/1kV
Outer diameter	53mm
Drum size	500 m or 1000 m

Frequently asked questions

What is the voltage rating of the cable?

Uo/U: 0,6/1kV.

How is the product delivered?

Delivery: 500 m or 1000 m.

What is the product number?

The product number is 112009. Use it in requests for quotation and spare part enquiries.

Who may install the product?

Installation is carried out by a qualified electrician. The requirements are explained in more detail on the Tukes website.

The requirements for electrical installations on worksites are explained in more detail on the Tukes website.

Request a quotation

Add to the quotation basket and send us your request – we will confirm availability and delivery time at the same time. You can see the full range in the product group.