title = "Electrical Panel and Control System Maintenance"

content = """
Electrical panels and machine control systems require periodic inspection and maintenance to ensure safe operation and prevent unexpected failures. At Ridgecrest Metalworks, electrical maintenance is performed by licensed electricians following documented procedures and safety protocols including Lockout/Tagout (LOTO).

Annual electrical panel inspection tasks:
- Thermographic survey: Perform infrared thermography scan of all high-current panels, distribution boards, and motor control centers (MCCs) under normal load conditions (minimum 40 % load). Identify hot connections, overloaded circuits, or failing components before they cause failure or fire. Significant anomalies (temperature rise > 40 °C above ambient at a connection) require immediate corrective action.
- Visual inspection with power on (from a safe distance): Check for unusual sounds (buzzing, crackling), smell of burning insulation, or visible signs of overheating (discolored terminals, melted insulation).
- Visual inspection with panel de-energized (LOTO applied): Check tightness of all terminal screws and cable lugs (re-torque to manufacturer specification); inspect cables for insulation chafing, cracking, or rodent damage; check condition of contactors (arcing contacts, worn arc chutes); inspect overload relay settings match motor nameplate values; verify panel sealing gaskets are intact (panels in contaminated environments).
- Component testing: Test emergency stop circuits, safety relay function, and interlocks per the machine safety circuit test procedure. Verify that safety functions operate correctly and that the machine cannot be started with guards open. Record test results.
- Bus bar and cable connections: Re-torque all bus bar bolts and main connection lugs to the specified torque (typically 20–80 Nm depending on bolt size). Loose connections cause resistive heating and eventually arcing.

CNC machine control maintenance:
- Back up CNC control parameters, tool offsets, and part programs to the central server monthly and before any control software update
- Clean cooling fans in the control cabinet; replace fan filters annually
- Check battery backup for SRAM memory (typically requires replacement every 2–3 years; a low battery alarm on the control must not be ignored)
- Update control software only with maintenance engineer authorization and after backup is confirmed

All electrical maintenance work is planned, permitted, and recorded in the CMMS. Work on energized circuits above 50 V AC requires an electrical safe work permit and appropriate arc flash PPE per NFPA 70E.
"""

version = "0.0.1"
