AREI coverage

What does PlanElec's AREI self-check verify?

The complete list of rules PlanElec checks automatically — and an equally explicit list of what the self-check does not assess.

7 minUpdated August 18, 2026

PlanElec contains two things that are easily confused.

The integrated rule text is complete: AREI/RGIE Book 1, Version 06 (Royal Decree of 06.10.2025, in force since 1 April 2026), Parts 1 through 9, in Dutch, French and German. You can consult it inside the application.

The automatic self-check covers only part of it. This page states exactly which part. We list the rules that are checked and, just as plainly, the areas where the application makes no statement — because an incomplete check presenting itself as complete is more dangerous than no check at all.

The self-check is preparation. Only an accredited inspection body issues the official assessment.

What is checked automatically

The application currently holds 38 checks. Of these, 24 point to a specific AREI article; the remaining 14 are practice rules or plausibility checks, marked as such, carrying no regulatory obligation.

A check only produces a result once the required project data has been entered. Where data is missing, the report marks the check as incomplete — never as passed.

Protection

CheckWhat is verifiedBasisSeverity
Main RCDA residual current device of at most 300 mA must be present at the head of the installation.AREI 4.2.4.3Error
Max. circuits per high-sensitivity RCDAt most 8 final circuits per high-sensitivity residual current device (≤ 30 mA).AREI 4.2.4.3.bError
Shutter actuator ratingsDIN-rail shutter actuators require an upstream MCB or RCBO; protective-device and motor loads stay within the catalogued input and channel ratings.Practice ruleError
Charging-point protection (EV charging)A charging point requires its own circuit, a dedicated residual current device and at least IP44 outdoors.AREI 7.22.4Error
RCD selectivity (practice recommendation)Practice recommendation: grade sensitivity and time between upstream and downstream RCDs (IEC 60364-5-53).Practice ruleWarning
30 mA RCD for socket circuitsAll socket circuits must be protected by a 30 mA residual current device.AREI 4.2.4.3.bError
Surge protection (SPD)The presence of a surge protective device (SPD) is assessed; the AREI imposes no general obligation.AREI 4.5.1Warning
Main switch min. 40 AA main switch must be present and rated at least 40 A in domestic installations.AREI 5.3.5.1.bError
Main RCD min. 40 AThe residual current device at the supply point must be rated at least 40 A.AREI 5.3.5.3.aError
Distribution-board layoutBoard: occupancy within the module count, one residual current device per row and roughly 20 % spare capacity.Practice ruleWarning
Embedded wall heating: 100 mA RCDHeating elements embedded in walls above 25 V AC require a separate 100 mA residual current device.AREI 4.2.4.3.bError
Pole configuration in residential installationsSingle-pole breakers are not permitted in Belgian dwellings with a star configuration; use 1P+N.AREI 4.4.4.2Warning
Trip characteristic versus load typePractice recommendation: the breaker curve B, C or D must match the load type.Practice ruleWarning
Feeder back-up protection between distribution boardsA feeder to a sub-board requires its own protective device in the supplying board and a consistent link.AREI 4.4.1.4Error
Breaking capacity versus prospective short-circuit currentThe breaking capacity of each breaker must withstand the prospective short-circuit current; checked only when the value is recorded.AREI 5.3.5.5Error

Earthing

CheckWhat is verifiedBasisSeverity
Main equipotential bondingA main equipotential bonding rail must be present.AREI 4.2.3.2Error
Earth electrode (ring earth/earth rod)For a TT or IT system, an earth electrode must be documented.AREI 4.2.3Error
Earthing and supply plausibilityPlausibility check: a public domestic 3×230 V connection recorded as a TN system requires review.Practice ruleWarning

Cables and sizing

CheckWhat is verifiedBasisSeverity
Cable cross-sectionThe cable cross-section must match the rating of the protective device.AREI 5.2.2Error
Voltage drop (ΔU)Voltage drop computed from cable length: guide value 3 % for lighting and 5 % for other final circuits.AREI 5.2.5Error
CPR cable fire-performance classIndividually laid cables must have the F1 property or reach at least CPR class Eca; class Fca is not permitted.AREI 5.2.7.2Error
Cables in hollow walls: Cca/PreflexCables in building cavities run in conduit (Preflex) or reach at least CPR class Cca.AREI 4.3.3.5.bError

Circuit loading

CheckWhat is verifiedBasisSeverity
Max. contact points per final circuitAt most 8 sockets and fixed appliances per final circuit; lighting-only points are not counted.AREI 5.3.5.2bError
Phase imbalancePractice recommendation: imbalance between phases should stay below 30 %.Practice ruleWarning

Rooms and zones

CheckWhat is verifiedBasisSeverity
30 mA protection for wet roomsSockets in damp rooms must be protected by a 30 mA residual current device.AREI 4.2.4.4Error
30 mA RCD for bathroom circuitsAll circuits in bathrooms and damp rooms must be protected by a 30 mA residual current device.AREI 7.1.4.3Error
Bathroom zones 0/1/2: permitted equipmentIn bathroom volumes 0, 1 and 2 only certain equipment is permitted; distribution boards are prohibited there.AREI 7.1.5.2Error
Smoke-detector coverage (recommendation)Non-binding advice based on regional housing rules; the AREI itself does not mandate smoke detectors in dwellings.Practice ruleWarning

Topology and control

CheckWhat is verifiedBasisSeverity
Electric shutter control pathsPlausibility check: direct switches, actuator inputs, central controls and drive types together form a consistent control path.Practice ruleError

Photovoltaic installation

CheckWhat is verifiedBasisSeverity
PV installation compliancePV installation: anti-islanding, earthing of module frames, warning signs and identification of DC and AC conductors.AREI 7.112.2Error
Combined current in distribution boards with multiple sourcesIn a board with local generation, grid and source currents add up per phase on jointly loaded sections.Practice ruleError

Completeness of the file

CheckWhat is verifiedBasisSeverity
Complete connectionsEvery element in the diagram must be connected; orphan nodes indicate an incomplete model.Practice ruleWarning
Minimum number of lighting circuitsPractice recommendation: at least two lighting circuits per dwelling unit.Practice ruleWarning
Dedicated circuits for large appliancesLarge appliances such as washing machine, dryer, dishwasher, hob and oven each require a dedicated circuit.AREI 4.3.3.3Error
Installation dossier (AREI 9.1.2)The installation file requires a single-line diagram, a situation plan and a complete title block; PV needs additional documents.Practice ruleWarning
Placement of connection/junction boxesStructural junction boxes must appear exactly once and consistently in the diagram.AREI 3.1.2.3Warning
Unlinked electrical floor-plan symbolsFloor-plan devices without a link to the electrical topology are reported for information.Practice ruleInformation
Switch-control group plausibilityPlausibility check: a control group contains at least one switch and at least one switched load.Practice ruleWarning

What the self-check does not assess

These areas of Book 1 deliberately remain outside the automatic check:

Special installations and locations (Part 7). Of fourteen chapters, PlanElec touches three, each only in part: rooms containing a bath or shower (7.1), supply of electric road vehicles (7.22) and domestic photovoltaic installations (7.112). Not covered: swimming pools (7.2), saunas (7.3), construction sites and outdoor installations (7.4), conductive confined spaces (7.6), camping sites (7.8), marinas (7.9), fairground installations (7.11), fountains (7.100), stationary vehicles (7.101), explosive atmospheres (7.102) and industrial accumulator batteries (7.103).

The direct-current side. The model has no separate roles for the L+, L-, M, PEM and PEL conductors. Conductor selection, colouring, combined protective conductors, DC residual current sensitivity, protection of the M conductor and permanent insulation monitoring in an IT system are therefore not verifiable. For photovoltaics this remains manual work.

The transitional provisions of articles 59 and 69. Whether an exception applies to an existing installation depends on data that cannot be derived from a single-line diagram — among others the PEN cross-section, the actual start of work on site and the presence of a monitoring device. PlanElec does take the relaxations of Part 8 into account by presenting certain findings on existing parts as indications rather than errors, but does not decide the exception itself.

Inspections of installations (Part 6) and the rules of conduct (Part 9) fall outside the reach of a planning tool. Only the composition of the installation file is checked.

What software cannot establish in principle

Even after further extension of the model, these points remain dependent on measurement, documentation or visual inspection on site:

  • the actual wiring, continuity and polarity of the conductors;
  • the tripping characteristics and DC suitability of the devices actually installed;
  • insulation measurement and the operation of a permanent insulation monitoring device;
  • the mechanical and chemical resistance and corrosion state of the earthing;
  • the effectiveness of automatic disconnection and the real earth impedance;
  • the suitability and certification of inverters, batteries and PV components;
  • zoning, risk assessment and on-site conditions.

What this means for your inspection

Use the self-check to catch avoidable mistakes early: a missing residual current device, a cross-section that does not match the protection, too many contact points on one circuit, an incomplete file. These are exactly the findings that otherwise surface only at inspection.

Do not rely on it for the cases listed above. There, your expertise and the judgement of the accredited body remain decisive.

Important for electrical planning

These guides explain the software workflow. Have the design, installation and documents reviewed by a qualified electrician where needed; only an accredited inspection body performs the official inspection.

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