Preventing your dogs from chewing on electrical cables is very important for their safety. Here are some methods you can use to deter this dangerous behavior:

1. *Management and Environment Change:* This is the most effective and simple way to protect your dogs. Ensure that electrical cables are out of their reach. You can hide the cables, encase them in protective covers, elevate them off the floor, or restrict access to rooms with many cables.

2. *Provide Appropriate Chew Toys:* Dogs often chew out of boredom or because they are teething. By providing an appropriate outlet for this natural behavior, like chew toys, you can help to reduce the chances of them seeking out inappropriate items like cables.

3. *Training:* Train your dogs to understand the command "Leave it." This command is useful for teaching them to ignore or walk away from distractions. You can hire a professional dog trainer or do it yourself. Remember to always reward good behavior with treats and praise.

4. *Use Deterrents:* There are sprays available that taste unpleasant to dogs, which you can spray onto the cables. This could help deter your dogs from chewing on them.

5. *Regular Exercise:* Physical activity can reduce the need for your dogs to chew. Dogs often chew when they have pent-up energy. Regular walks, playtime, or training sessions can help burn off this energy and reduce the desire to chew.

6. *Mental Stimulation:* Provide your dogs with plenty of mental stimulation. This can be in the form of training, puzzle toys, or interactive toys that require your dogs to work for a treat. Mental stimulation can help prevent boredom, which can lead to destructive behaviors like chewing.

7. *Consult with a Veterinarian or a Dog Behaviorist:* If the chewing behavior continues despite your best efforts, there may be an underlying issue such as anxiety or a nutritional deficiency. A veterinarian or a professional dog behaviorist can provide further insight and strategies.

Remember, never punish your dogs for chewing. Instead, redirect their attention towards appropriate behaviors and reinforce those. Always supervise them around cables and other potential dangers until you're confident they've learned not to chew on them.