Çamlık, Pendik

Çamlık holds Pendik's relatively new complex stock, where flats run three or four inverter air conditioners, an induction hob and increasingly an electric vehicle charger. On summer evenings those loads cluster onto one phase, the neutral terminal in the flat board climbs to around one hundred and sixty degrees and the main breaker trips thermally. Upsizing the breaker without measuring load distribution solves nothing and merely leaves the cable unprotected.

The technician reads all three phase currents and the neutral separately, redistributes loads across the busbar and runs a dedicated circuit from the board to the outdoor condenser. Because a charger draws full load continuously for hours it is never connected to the car park lighting circuit; a dedicated NYY cable is used with 4 or 6 mm² according to power, a C32 or C40 breaker and a 30 mA Type B residual current device able to detect DC components. Before installation the existing load at the building main device is measured and the remaining capacity calculated.

In Çamlık, a deformed socket plate, crackling from inside the box or a sharp plastic odour is a definite sign the terminal has begun to melt, and that outlet must be taken out of service immediately. The cause is almost always a loose screw connection: current crossing the contact resistance carbonises the copper, resistance climbs further and the terminal passes 200 degrees, melting the cable insulation. A FLIR thermal sweep finds the point without opening the wall.

The repair cuts blackened conductor ends back to clean copper, replaces the back-box and closes junctions with Wago 221 lever terminals rather than twists or tape. At heavy points such as a kitchen counter, an unbroken TSE-certified 3x2.5 mm² solid copper cable is pulled from the board and each major appliance given its own breaker. All screw connections are tightened with a calibrated screwdriver to between 2.5 and 3.5 Nm; hand tightening leaves an invisible slackness and the fault returns at the same point.

In Çamlık, seven to nine kilowatt instant water heaters retrofitted into bathrooms are connected to existing thin 1.5 or 2.5 mm² circuits. During a shower the run overheats, the terminal in the ceiling junction box melts and the residual current device trips. In unventilated internal bathrooms shower steam leaves condensation in the box over the years; the terminal takes on damp, leakage current climbs and the device starts tripping after every shower.

The correct installation is an unbroken 3x4 mm² fire-retardant cable from the board, a C32 breaker and its own 30 mA Type A residual current device, with trip time verified by tester. The heater's chassis earth is always measured and the unit is not energised without a protective earth, because potential on the chassis is lethal on a wet floor. The junction box is dried and encapsulated in dielectric silicone gel, and an IP44 moisture-proof luminaire plus a run-on timer extract fan dry out the root cause of the condensation.