With all the ice and snow making its worrisome way across the country, our attention is unusually focused on our ac power system and whether it's bringing the electrons to our home. With that being the case, this puzzle should be, like the overloaded branches and antennas, a snap! Ouch - sorry about that!

Errata - Speaking of "sorry about that," providential puzzle peruser, Jim K5JG, spotted errors in the original clues for #4 and #49 Across and #33 Down. Your puzzle producer is positively penitential.

1. Voltage control connection on a transformer
4. What happens to the fuse with too much current
7. Connects equipment to power
10. AC switch that conducts in one direction
11. Performed in the past
13. Famous multi-level sales company
15. Person who edits (abbr)
17. Popular name for home wiring cable
18. Where you go if you touch the wrong wire (abbr)
19. Heavy lines that carry power
22. Remove insulation from
25. Computer operating system (abbr)
27. CW prosign for "from"
28. Center frequency (abbr)
29. Continent of PY, LU, and HK (abbr)
30. CW prosign for "and"
32. AC switch that conducts in both directions
33. Produce power
36. Prefix for Benin
37. Kit maker
39. Makes a new line with LF
40. Trigger device for 32 Across
42. Current path between high-voltage terminals
45. Manages the ISS and STS missions
48. Elected ARRL official that manages a section
49. One thousandth of a micrometer (abbr)
50. Shape of ac power waveform
52. Not dangerous
54. RS232 signal on pin 6 of a DB-9 connector
55. Belonging to a female
56. Bands between MF and VHF
57. Semiconductor switches for ac and dc current
63. Residential building
64. CW prosign for "end of message"
65. Take action
66. Where you connect to ac power
67. Conductor that carries ac return current
70. Group of eight
71. Astronomical reflection mode

Down

1. Switch used to connect to line or generator
2. Measured in watts
3. Occupied (abbr)
4. Resettable protective component
5. External diameter (abbr)
6. Three of these in home ac wiring
8. Interrupted connection
9. Ham abbreviation for distance
12. Came before Windows
14. What the sun does in the morning
16. Logarithmic power ratio
20. Signal input to a mixer
21. Use again
23. Measure of change with temperature (abbr)
24. Distributes ac power
26. The system of ac power distribution
27. Information, usually digital
31. Where the sales clerk puts your items
33. Greeting before noon (CW abbr)
34. These provide sight
35. Short electrical disturbance
38. Covered with water or flooded
41. As more frozen rain falls, the roads get .....
43. Before noon
44. Licensed service that shares channels with FRS
46. Concerning the well-being of users and operators
47. Receiver output gain control
50. Unintentional connection
51. Number (abbr)
53. What was once considered necessary to carry radio waves
54. These treat you at 18 Across (abbr)
58. Conductor that supplies power
59. Prefix of Balkan country now divided into several new DXCC entities
60. Stretched tight
61. Holds power lines above the ground
62. Component that protects against over-voltage
65. Where hydroelectric power comes from
68. Designs power systems (abbr)
69. Regarding (abbr)