San Marino Grid Interconnection & Italian Norm Harmonization
Domagnano is one of the pivotal "Castelli" of the Republic of San Marino, acting as a crucial transit and commercial gateway linking the inland historic capital of Città di San Marino with the industrial centers of Serravalle, Rovereta, and the Italian Adriatic trade hub of Rimini. The electrical transmission network in Domagnano operates at a nominal voltage of 230V AC single-phase / 400V AC three-phase at 50Hz, synchronized with the Italian Terna transmission grid. Consequently, local electrical standards adhere closely to CEI 64-8 (the Italian electrical installation code) and technical recommendations published by San Marino's Azienda Autonoma di Stato per i Servizi Pubblici (AASS).
For industrial and commercial procurement officers sourcing portable power equipment, this architectural hybridity presents a fundamental challenge: installations frequently interface with both CEI 23-50 (Type L Italian bipasso 10A/16A) fixtures and DIN VDE 0620-1 (CEE 7/4 German Schuko & CEE 7/7 hybrid) plugs utilized across modern heavy machinery, European machine tooling, and CE-marked power tools. Our cable reels and heavy-duty socket assemblies bridge this divide through standardized dual-standard bivalent sockets and certified multi-outlet drum configurations.
Core Engineering Insight: When selecting cable reels for high-altitude or sub-Apennine terrain like Monte Titano and Domagnano, ambient temperature fluctuations and relative humidity require copper cables jacketed in H07RN-F polychloroprene rubber or high-flexibility H05RR-F / H05VV-F compounds capable of resisting mechanical abrasion against sandstone, gravel, and concrete floorings.
Furthermore, when deploying extension cords over lengths exceeding 25 meters, voltage drop (ΔV) must not exceed the 4% threshold stipulated by European Low Voltage Directives (2014/35/EU). A pure copper conductor gauge of minimum 3G1.5mm² is mandatory for continuous 16A loads up to 25 meters, while 3G2.5mm² is recommended for extended 40-50 meter site runs to prevent excessive thermal buildup within the inner drum windings.
Coil Thermodynamic Derating & Thermal Cutoff Architecture
A frequent point of electrical failure on construction and maintenance jobsites in Domagnano is inductive thermal choking caused by operating high-draw tools while the flexible power cord remains coiled around the drum. Under high amperage, the magnetic field generated across co-axial cable layers produces cumulative heat entrapment that cannot dissipate through radiation or convection.
To eliminate fire hazards and dielectric degradation, all Jiande Lyqen retractable cable reels incorporate an active bimetallic thermal cutoff switch calibrated to trip automatically when internal core temperatures exceed 56°C (±5°C). Once tripped, the circuit remains isolated until the cable is unwound and the manual red reset button is depressed.
| Cable Cross-Section |
Fully Coiled Capacity |
Fully Unwound Capacity |
Max Operating Voltage |
| 3G1.0 mm² |
900W – 1000W (4.3A) |
2300W (10.0A) |
250V AC ~ 50Hz |
| 3G1.5 mm² |
1000W – 1200W (5.2A) |
3500W – 3680W (16.0A) |
250V AC ~ 50Hz |
| 3G2.5 mm² |
1500W – 1800W (7.8A) |
4000W+ (16A – 20A) |
250V AC ~ 50Hz |
| H07RN-F (Heavy Rubber) |
1200W (IP44 Rated) |
3680W (Continuous) |
450/750V Test |
*Note: Rated values conform to EN 61242 / IEC 61242 standard requirements for portable cord reels intended for household and industrial usage.
