Low voltage

1- What are the differences between the various filling gels in the Etelec Italia range?

MPGel is an extremely fast cross-linking gel that allows to encapsulate, fill and seal a live part or an electronic board very quickly.
Crystalgel is a transparent filler gel that allows viewing of isolated components.
Replaygel is a repositionable gel filler ideal for isolating connections and components that need to be accessed again after sealing without having to use a new product.
ONEGEL single-component filler gel in cartridges for silicone guns ideal for filling and insulating junction boxes placed on the ceiling, on the wall or in spaces that are hard to reach.

2- What are the advantages of using the gel compared to traditional isolation methods?

The gel technology allows multiple advantages over more traditional methods such as resins, while ensuring the same performance in terms of electrical insulation. The main advantages are its characteristics of non-toxicity, safety during installation and re-usability of the product following the first opening.

3- Which gel must I pour inside the SHARK joints?

SHARK joints are pre-filled with insulating gel so that they are immediately usable!

4- What is the difference between SHARK joints and solutions such as SHELLBOX or SHELLBOX FLAT models?

SHARK models are junctions because they meet all the necessary characteristics according to the European standard EN50393. As such, they can be used for the in-line joining of two or more cables, interrupted or not. Compliance with this standard allows the use of these joints in wells, underground areas and in the air. The SHELLBOX series, on the other hand, is a series of connecting devices ideal for protecting live parts inside enclosures such as junction boxes or false ceilings.

5- In che caso è consigliabile utilizzare il modello LedJoy?

Il Ledjoy è un dispositivo di connessione ideale per tutte le tipologie di connessioni da effettuare anche in spazi ristretti dove è presente umidità. Ideato per essere rapido e facile da installare senza l’uso di attrezzi. Perfetto per installazioni di illuminazione domestica e civile, automazione civile ed industriale (sbarre automatiche, cancelli e simili) e sistemi di videosorveglianza.

6- I need to make a permanent immersion joint, what can I use?

Our range of Seal Joint heat-shrink joints is perfect for this type of installation. The hot melt sealant contained on the inner wall of the outer sheath, when melted, protects the live parts from moisture and capillarity of water. Alternatively, you can use the Submarine solid series of resin joints.

7- What is the fastest low voltage joint system?

The choice of a joint system always depends on the type of application, but above all on the installation conditions. In general, the Gel solution is the one to be preferred over the resin one to be cast or the heat-shrink one because: For installations in walkways and cable ducts, the gel technology with pre-filled shells – SHARK® range – is certainly the fastest solution. For aerial installations, the use of casting resin technology is difficult because a support point is required to be able to pour the resin without letting it come out of the shell. Heat-shrink technology is also difficult because the heating operation with a torch flame or hot air gun can result tiring for the operator in the long run, especially if they do not work in a comfortable position. For underground installations, heat-shrink technology is difficult because the heating operation with a torch flame or hot air gun can be tiring for the operator in the long run, especially if they are not working in a comfortable position. Even the casting resin technology presents difficulties in the execution phase because in the absence of a support point to be able to pour the resin, there is a risk of making it come out of the shell.

Medium voltage

1- Are there instructions for the aluminium cable in the packaging of the Medium Voltage termination kits?

All the heat-shrink and cold-shrink kits can be installed on cables with both copper and aluminium conductors, without having to make any distinction or particular installation attention, except for the cables type ARE4H5E (X) and ARP1H5E (X), for which we have dedicated termination kits in the catalogue, i.e. all those with a code ending in H5.

2- Difference between cold-shrink and heat-shrink technology?

The main difference between cold-shrink and heat-shrink technology is in their installation. The sheaths present in the heat-shrink kits need a heat source to be applied, unlike the cold-shrink bodies that are installed by removing the support spiral. As far as electrical insulation is concerned, these technologies are completely equivalent.

3- What are separable connectors?

Separable technology allows you to connect and disconnect the connectors from the electrical equipment to which they are applied via bushings.
There are various classes of separable connectors which depend on the type of insulators on which they are applied and on the rated current they must manage.

4- What information do you need to be able to choose the correct termination model?

For cold-shrink or heat-shrink terminals:
1) The cable rated insulation voltage (e.g. 12/20kV; 18/30 kV)
2) The cross section of the cable conductor (e.g. 95 mm2)
3) The type of shield and/or armour (e.g. copper wire or aluminium tube)
For separable connectors, in addition to the above:
4) The type of bushing (external or internal cone)
5) The diameter on the primary insulation
6) The rated operating current (e.g. 250 A; 400 A; 630 A; 800 A; 1250 A)

5- What information do you need to be able to choose the correct joint model?

1) The cable rated insulation voltage (e.g. 12 / 20kV; 18/30 kV)
2) The cross section of the cable conductor (e.g. 95 mm2)
3) The type of shield and/or armour (e.g. copper wire or aluminium tube)

Heating cables

1- What information is needed to be able to choose the correct heating cable model?

For all installation needs for heating cables, it is possible to download the data collection form and send it completed to our technical office (tecnico@etelec.it) to receive a personalised quote. Download the form

2- What is the difference between heating cables with constant power and self-regulating power?

Constant power heating cables provide constant power per linear meter (W/m) regardless of contact or external conditions. The matrix of which the self-regulating power heating cables are made, on the other hand, allows the delivery of the power strictly necessary to achieve thermal equilibrium, guaranteeing considerable savings in energy terms when it is not necessary to use all the deliverable power of the cable.