Table:
text: AC power plugs and sockets
Comparison of standard types
Comparison of standard types
IEC_World_Plugs_Type1 Standard Power_rating Earthed Polarised Fused Insulated_pins Europlug_Compatible_
A NEMA 1-15 unpolarised 15 A/125 V No No No No No
A NEMA 1-15 polarised 15 A/125 V No Yes No No No
A JIS C 8303, Class II 15 A/100 V No No No No No
B NEMA 5-15 15 A/125 V Yes* Yes No No No
B NEMA 5-20 20 A/125 V Yes* Yes No No No
B JIS C 8303, Class I 15 A/100 V Yes* Yes No No No
C CEE 7/16 (Europlug) 2.5 A/250 V No No No Yes Yes
- CEE 7/17 16 A/250 V No No2 No No Yes

Question: What is the power rating for type a, b, and c under AC power plugs and sockets?

Question: How many overall standards are there for the Type B plugs in AC power plugs and sockets?