Series Constant-power Heating Cable Must Not Be Cut

Self-regulating and parallel constant-power cables can be cut to length, but series constant-power cable has a fixed resistance per meter by design. Cutting shortens it, lowers resistance and raises power (P=U²/R), exceeding the certified ≤30 W/m limit and causing short-circuit or burnout. Order to exact length (up to ~1000 m) for long pipelines.