Gateway timeout: Understanding and troubleshooting 504 errors

It appears that the provided content is displaying an error message rather than the intended white paper. The "504 Gateway Time-out" error indicates that a server acting as a gateway or proxy did not receive a timely response from an upstream server.
This error typically occurs when:
• The server is overloaded with traffic
• There are network connectivity issues
• The server is undergoing maintenance
• The requested resource is temporarily unavailable
Unfortunately, the intended white paper content about electrical safety standards or NFPA 70E cannot be accessed at this time due to technical difficulties.
Review the white paper when issues are resolved to gain insights on safety standards.