Type 1 devices are installed before the main device in the loadcenter whereas type 2 are installed following the main devices in the loadcenters. Installed in each electrical switchboard it prevents the spread of overvoltages in the electrical installations and protects the loads.
Surge Protective Devices Spd Schneider Electric Canada
Type 2 spd wiring diagram. The type 2 spd is the main protection system for all low voltage electrical installations. These spds have a low discharge capacity. Type 3 protection is required in accordance to 17th edition wiring regulations if cabling distance from a type 1 or 2 spd is greater than 10m or if simply peace of mind that valuable or sensitive equipment need to be protected from surges and damage. Installed in each electrical switchboard it prevents the spread of overvoltages in the electrical installations and protects the loads. Type 12 surge arresters combine the benefits of both type 1 and type 2 having both high impulse current withstand 10350µs associated with direct lightning strikes and a low voltage protection level of 15kv up exceeding the requirements for category ii equipment identified within table 443 bs7671. The conductors used to connect the spd to the line or bus shall not be any longer than necessary and shall.
2 use supply wire suitable for 90 c. Locate the electrical systems applicable wiring diagram in section 23. Type 1 surge protective device spds are intended for installation between the secondary of the service transformer and the line side of the service equipment overcurrent. Page 4 of 7 10 055 1 rev e date. The type 2 spd is the main protection system for all low voltage electrical installations. How to fit a type 2 spd and keep the line and earth conductors at 05m or less.
See figures 9 14. Through the enclosure hole and mount the spd enclosure. Type 2 spd is characterised by an 820µs current wave. We fit the spd remote from the consumer unit proving how hard it is to keep conductors short enough to comply with. Reference this wiring diagram as necessary in steps 2 3 and 4. Type 1 spd is characterized by a 10350 µs current wave.
Type 2 spd is characterized by an 820 µs current wave. The type 2 spd is the main protection system for all low voltage electrical installations. Connect the spds ground wire green to the systems ground connection. Select the correct wiring diagram for the spd you are install ing. Type 2 spd is characterized by an 820 µs current wave. As stated in the catalog.
Spd series type 1 and type 2 units do not require over current protection devices fuses or circuit break ers to operate correctly. Installed in each electrical switchboard it prevents the spread of overvoltages in the electrical installations and protects the loads. 08272018 1 this product contains no serviceable parts. You must refer to this diagram while wiring the spd. Connect the spds neutral wire white to the systems neutral connection not required for.
Gallery of Type 2 Spd Wiring Diagram
