How can i prepare myself to a power cut in case of load shedding or black-out?

You will be given 24 hours' notice of any power cut... Use this time to prepare, following the recommendations of Federal Crisis Centre.

How can I preprare myself to a power cut?

Unplug your electrical appliances to avoid an electric overload when the electricity supply is restored;
Charge your mobile phone (but bear in mind that a power failure may disrupt mobile and landline telephone networks);
Notify any vulnerable neighbours, friends and family, and advise them to take the same precautions.

Switch off sensitive electrical devices (TV, computer) and unplug them to avoid an electric overload when power is restored;
Set the thermostat of your boiler to minimum to avoid an electric overload on restarting;
Keep one item switched on so that you'll know when the power has been restored.
Travel as little as possible; traffic lights may not be in operation and cause traffic problems;
Shut the doors and windows to maintain room temperatures;
Listen to the radio (battery-powered or wind-up radio, or in your car) for the latest news and recommendations from the authorities;
Use torches instead of candles. If you do decide to use candles, put them in candle holders on fire-proof surfaces. Never leave candles unattended;
Don't open your fridge or freezer unless you have to. A fully stocked freezer will keep food frozen for 24 to 36 hours if the door is kept shut;
Avoid using the telephone so as not to overload the network and hamper the work of the emergency services. In case of danger, dial 112.
Avoid using your mobile phone. If you really need to contact anyone, send a text message instead.

To avoid any risk of further cuts:
Do not switch on all your electrical appliances at the same time. Give the electrical system the time to stabilise;

Any other question about the power cut? Please check the OFF ON's website out.