1. Inni í búnaðinum, tengingar milli ýmissa íhluta verða að nota koparkjarna einangruð raflögn, sem gætu verið annað hvort venjulegir vírar eða kaplar. This wiring’s insulation needs to adhere to the equipment’s rated voltage criteria, og getu þess fyrir núverandi flæði og varmamyndun verður að vera í samræmi við staðfesta staðla, similar to the requirements for intrinsically safe electrical devices.
2. Wires within the equipment must be routed to avoid any contact with parts that are either high-temperature or mobile.
3. Internal wiring should be tidily arranged and securely bundled. Hins vegar, it’s imperative that sjálftryggt wiring is not bundled together with other types of wires. ‘Tidily arranged’ implies that each wire in the bundle should avoid crossing or tangling with others.
4. Standard, unshielded high-frequency wires should not be installed parallel to other wires.
5. Intermediate connections or joints are not permissible on internal wiring.