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- Resistance:
- Resistor colour code calculator
- LED series resistor calculator
- Series / parallel resistor calculator
- Capacitance:
- Capacitance unit converter
- Charge / Energy calculator
- Capacitor code calculator
- Series / parallel capacitor calculator
- Inductance:
- Convert colour code to inductance
- Convert inductance to colour code
- Other:
- Ohm Law calculator
- Potential Divider calculator
- Wheatstone Bridge calculator
- Power (wattage) calculator
- Reactance calculator
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Approval Markings on Equipment
Commercially manufactured equipment often has markings on it to show compliance with approvals for certain countries. The table below shows what these markings stand for.
|
ASTA (UK) |
|
NEMKO (Norway) |
BASEC (UK) |
NF-USE (France) |
||
BEAB (UK) |
OVE (Austria) |
||
BSI (UK) |
SECV (Australia) |
||
CEBEC (Belgium) |
SEMKO (Sweden ) |
||
CSA (Canada) |
SETI (Finland) |
||
DEMKO(Denmark) |
SEV (Switzerland) |
||
GOST (USSR) |
UL (USA) |
||
IMQ (Italy) |
VDE (Germany) |
||
KEMA-KEUR (Holland) |

