Ηλεκτρικά και power planning σε εκθεσιακό περίπτερο: complete guide
Από load calculations μέχρι cable routing και LED specs — πώς να σχεδιάσετε electrical system που δεν τραβάει surprises σε show day.
Σύντομη απάντηση: ένα μέσο 20 m² booth χρειάζεται 2-3 kW total power για lighting + screens + demo equipment. Most venues provide 16A (3.5 kW) outlets. Critical decisions: distinct circuits για high-demand items, LED voltage planning, surge protection. Παρακάτω είναι ο complete electrical planning guide με real load calculations.
Why electrical planning matters
Booth electrical failures σε show day = catastrophe:
- Demo equipment failure: Lost lead opportunities
- Lighting goes out: Booth looks unprofessional
- Tripped breakers mid-show: Several minutes of dead booth
- Fire safety inspection failure: Booth doesn’t open
Pre-planning electrical avoids 95% of these issues.
Power requirements καθ’ element
Lighting
LED spots (10-20W each): 8-12 fixtures για 20 m² booth = 80-240W total LED strips (15W/m): 6-10m around booth = 90-150W Backlit graphics (LED panels 40W/m²): 2-4m² = 80-160W Architectural LED features: 50-200W Total lighting: 400-750W για 20 m² booth
Display equipment
55” LED TV/monitor: 100-150W 65” LED TV: 120-180W 75” TV/larger: 150-250W Video wall (modular): 200-500W Touch screen: 50-100W Demo computers: 50-150W each
Audio
Booth-fill speakers (60W each): 120-180W για typical setup Mini sound system: 100-200W Live audio (DJ booth, etc.): 500-1.500W
Demo και interactive equipment
Tablet stations: 20-30W each Charging stations: 100-200W total Coffee machine: 1.000-2.000W Mini fridge: 50-100W Demo machinery: Varies (always check specs)
Lead capture equipment
Badge scanners: 5-10W each (USB powered) Printers: 50-300W Wi-Fi routers: 5-15W
Realistic power budgets
Για 20 m² booth, typical totals:
Light usage booth (basic):
- Lighting: 500W
- One screen: 150W
- Audio: 100W
- Charging: 100W
- Total: 850W (under 1 outlet)
Medium usage booth:
- Lighting: 700W
- Two screens: 300W
- Audio: 200W
- Demo equipment: 200W
- Charging: 100W
- Total: 1.500W (well within 16A outlet)
Heavy usage booth:
- Lighting: 1.000W
- Video wall: 500W
- Audio: 300W
- Demo machinery: 800W
- Coffee/catering: 1.500W
- Total: 4.100W (needs 2× 16A outlets or 32A)
Outlet types at venues
Standard outlets
16A single-phase (most common): 3.5 kW capacity
- Standard για 20-30 m² booths
- 1-2 outlets typically included σε floor space
32A single-phase: 7 kW capacity
- Required για heavy demo equipment
- Extra cost €100-300
63A three-phase: 43 kW capacity
- Industrial booths only
- Significant extra cost
Connection types
CEE 16A “Blau” (Type CEE 7/4): Standard EU industrial outlet, blue color Schuko (Type F): Standard household outlet (Germany, Austria, Greece) French Type E: France, Belgium UK Type G: United Kingdom USA Type B: US shows only
Circuit planning
Don’t put everything σε one outlet. Distribute load:
Booth circuit organization:
Circuit 1 (Lighting): All booth lighting Circuit 2 (Display): TVs, screens, video walls Circuit 3 (Demo): Demo equipment, computers Circuit 4 (Catering/Misc): Coffee, charging, ancillary
Benefits:
- One circuit fails, others continue
- Easier troubleshooting
- Compliance με venue rules
Load balancing
Avoid putting all high-demand items σε one outlet. Distribute:
Bad: 2.5 kW σε one 16A outlet = 90% capacity, risky Good: 1 kW + 1 kW + 0.5 kW spread σε 2-3 outlets
Cable management
Cable types
Power cables: 3-core, 2.5 mm² standard. CE marked. LED ribbon cables: Low-voltage (12V/24V) cables Data cables: Ethernet για demos requiring internet
Cable routing rules:
- Avoid walking paths
- Use floor protectors over crossing points
- Cable trays για multiple parallel runs
- Color-code για identification
Cable hiding:
- Inside booth walls (preferred)
- Under raised flooring (premium)
- Cable management panels (visible but neat)
- Floor protectors (basic but functional)
LED specifics
LEDs are 95% of modern booth lighting. Plan carefully:
Voltage
12V LED strips: Lower brightness, shorter runs (max 5m) 24V LED strips: Higher brightness, longer runs (max 10-15m) 220V mains LED: Standard fixtures, no voltage conversion
Drivers (power supplies)
Each LED installation needs driver:
- Calculate total wattage
- Choose driver με 20% headroom
- Quality drivers cost €30-150 each
Voltage drop calculation
Long LED runs lose voltage. For 24V:
- Up to 5m: minimal drop
- 5-10m: 5-10% drop
- 10m+: requires multiple feed points
Sign of voltage drop: LED strips dimmer at end of run.
Safety considerations
RCD/RCBO protection
Residual current devices that trip σε electrical fault. Mandatory σε EU.
RCD: Single trip για whole booth RCBO: Individual protection per circuit (preferred)
Surge protection
Important για demo equipment, screens. Cost €30-100. Worth installation.
Emergency shutoff
Visible kill switch για emergencies. Required σε large booths.
Grounding
All metal structures grounded. Aluminum booth = full grounding needed.
Pre-show electrical checklist
2 weeks before show:
- Total power calculation done
- Outlet types confirmed με venue
- Extra outlets ordered if needed
- All equipment specs documented
- LED drivers selected
- Cable lengths planned
- Surge protection ordered
- Licensed electrician booked (αν required by venue)
- Test connections planned
At-show electrical testing
Day -1 (during setup):
Test 1: All circuits power on Test 2: Each fixture works Test 3: Full load test (everything on at once) Test 4: Check για overheating circuits Test 5: Cable safety check
Day 0 (before opening):
- Final power-on test
- Walk-through με electrician
- Backup plans documented (φωνή σε backup outlet, etc.)
Common electrical mistakes
Mistake 1: Forgetting demo computer wattage. Adds up quickly με 3-4 demo stations.
Mistake 2: Single circuit για everything. One blown = booth dark.
Mistake 3: Cable trip hazards. Visitors trip = liability issue.
Mistake 4: Wrong voltage equipment. US equipment in EU = transformer needed.
Mistake 5: No surge protection. One power spike = €1000+ damage.
Mistake 6: Insufficient lighting circuit. Lights flicker, look cheap.
Mistake 7: No backup plan. When electricity fails, no contingency.
Συχνές ερωτήσεις
Είναι αξιόπιστα τα venue’s electrical systems; Generally yes σε major venues. Smaller venues can be flaky. Plan για backup.
Πόσο επηρεάζει η electrical capacity τα demos; Significantly. Underpowered = demos run slow ή crash. Plan για 30% headroom.
Είναι αναγκαία η UPS battery backup; Recommended για critical demos. Cost €200-1.000.
Είναι σημαντικό το cable thickness; Yes. Undersized cables overheat. Use 2.5 mm² minimum για 16A circuits.
Πόσο διαρκούν τα LED systems σε continuous operation; Quality LEDs: 25.000+ hours. Show usage (30-50 hours/show) = 500+ shows.
Είναι ηθικό to share outlet με neighbor; Usually prohibited by venue rules. Causes overload issues.
Πόσο νωρίς πρέπει να order extra outlets; 4 weeks πριν show. Last-minute orders cost double.
Είναι αναγκαία η circuit breaker info για insurance; Yes — document electrical setup. Insurance claims require evidence.
Πώς αντιμετωπίζω international electrical differences; Hire local electrician στο venue location. Adapt equipment ή transformers.
Είναι αξιόπιστα τα floor power strips; Yes αν CE marked. Floor positioning critical to avoid trip hazards.
Σχεδιάζετε booth με complex electrical needs; Στείλτε μας τα στοιχεία και θα design electrical plan για το equipment. Διαβάστε επίσης permits & fire safety και φωτισμός εκθεσιακού περιπτέρου.


