DESTINATION AND DEVICE POWER CHECKLIST
Yenra | Updated September 7, 2026
Article: https://yenra.com/power/plug.html

Complete one record per destination and device. Recheck when either
changes. A passive plug adapter changes the connection, not voltage or
frequency. Follow exact device and accessory instructions.

Destination/accommodation/date: _____________________________________
Confirmed socket type, nominal voltage and frequency: ________________
Source/operator confirmation: _______________________________________
Device and manufacturer: ____________________________________________
Exact AC INPUT label (not USB output): ______________________________
Supply within input voltage/frequency range? ________________________
Earth required or documented double-insulated classification: ________
Adapter model; plug types; earth path; ratings and exclusions: _______
Device load within all applicable limits? ___________________________
Charger single-port/shared-port output and cable compatibility: ______
Manufacturer-approved solution for any mismatch: ____________________
Inspect for damage/loose pins/overheating before use.
Do not stack adapters or defeat grounding/protective features.

FICTIONAL LABEL EXERCISE: destination supply 230 V, 50 Hz
100-240 V AC 50/60 Hz input: supply is in range; still check plug,
earth and accessory limits.
120 V AC 60 Hz only: simple adapter is unsuitable. Obtain a supported
solution or a suitable local device.
115/230 V selector: follow manual, set while disconnected, verify
frequency and the remaining requirements.
USB-C connector alone does not establish charging power. A fictional
18 W port may not sustain a laptop normally using a 65 W supply.

Keep this record with the manuals or offline device specifications.
https://www.electricalsafetyfirst.org.uk/safety-advice/products-and-appliances/gadgets-entertainment/travel-adaptors/
https://www.electricalsafetyfirst.org.uk/safety-advice/travel-advice/