For high frequency currents the impedance per unit length of this connection is approximately 1 µhm. Large single surge events such as lightning can reach hundreds of thousands of volts and can cause immediate or intermittent equipment failure.
Led Lights Spds Series Connection Surge Protective Device
Spd connection diagram. Dc systems measure from positive and negative input. Connection leads should be cut to minimum possible length. Measure l n l g l l and n g of the ac system. Connection leads should be cut to minimum possible length. Confirm that the spd is correctly rated for the system to which it is to be connected to. Surge protective devices are designed to protect against transient surge conditions.
Measure l n l g l l and n g of the ac system. Board type b class and c class surge arresters must be connected in parallel to the system. This device is connected in parallel on the power supply circuit of the loads that it has to protect see fig. In class b c class section 16mm2 minimum we have to use a minimu. Accordingly a spd should be chosen with a voltage protection level up adapted to protection of the equipment see fig. Dc systems measure from positive and negative input.
The surge protection device spd is a component of the electrical installation protection system. Never coil or push aside excess length. J17it can also be used at all levels of the power supply network. Confirm that the spd is correctly rated for the system to which it is to be connected to. Never coil or push aside excess length. The total length of the connection conductors is l l1l2l3.