Once every 6-8 months.
Electrical equipment should be tested every 6 months like your smoke detectors and your furnace . Electrical fires are the 3rd leading cause of fires in Canada, so test ,test test.
once a month
10 years
every 12-18 months
at least annually
GFCI outlets should be tested monthly to ensure they are working properly. This can be done by pressing the "Test" and then "Reset" buttons on the outlet. If the GFCI does not trip when tested, it may need to be replaced.
The National Electrical Code: http://www.nfpa.org/aboutthecodes/AboutTheCodes.asp?DocNum=70&cookie%5Ftest=1
You local Governement Aviation Authority should have the standard required
The original installation in most homes built between 1930 and 1950 typically included a basic electrical service designed to meet the needs of the time, often featuring fuses and limited circuit capacity. These systems may have been adequate for the appliances and lighting available then, but they often lack the capacity to support modern electrical demands. As a result, many homes from this era require upgrades to their electrical systems to ensure safety and accommodate today's technology.
It would all depend, if you wake up and she's a minger straight away mate
Gas cylinders should be re-tested every 5 to 10 years, depending on the type of gas and the regulations in your specific location. It is important to have cylinders inspected regularly to ensure they are safe for use.
The purpose of NEC (National Electrical Code) specifications is to provide guidelines and standards for the safe installation and use of electrical systems. It helps to ensure that electrical systems are properly designed, installed, and maintained to prevent electrical hazards such as fires, shocks, and equipment damage. Compliance with NEC specifications is often required by law to promote public safety.