Installation method of AC surge protector

The surge protector adopts 35MM standard rail installation

For fixed SPD, the general installation should follow the following steps:

1) Determine the discharge current path

2) Mark the wires that cause the extra voltage drop at the terminal of the equipment.

3) To avoid unnecessary induction loops, the PE conductor of each device should be marked,

4) Establish an equipotential connection between the equipment and the SPD.

5) To carry out multi-level SPD energy coordination

In order to limit the inductive coupling between the protected part and the unprotected part of the equipment after installation, certain measurements are required. The mutual inductance can be reduced through the separation of the inductive source and the sacrificial circuit, the choice of the loop angle and the limitation of the closed loop area.

When the current-carrying component wire is part of a closed loop, the loop and induced voltage are reduced due to the proximity of the wire to the circuit.

Generally speaking, it is better to separate the protected wire from the unprotected wire, and it should be separated from the ground wire. At the same time, in order to avoid transient orthogonal coupling between power cables and communication cables, necessary measurements should be made. 

How Do You Install an AC Surge Protector?

Air conditioners have their own circuit boards, making plug-in surge protectors an unsuitable option. Generally, it's best to install a whole-house surge protector because it will also protect all of your home's electrical appliances from power surges.

However, installing a whole-house surge protector is risky if you don't know what you're doing because you'll need to do significant work to your home's electrics. If you're inexperienced in this area, it's safer and less time-consuming to hire a professional electrician. Some manufacturers even stipulate that DIY installation will invalidate the product warranty.

If you are confident in your ability to wire a whole-house surge protector, the instructions below will walk you through the installation process step-by-step.

These instructions provide the basics of installing a whole-house surge protector, but you can — and _should —_defer to the manufacturer's installation instructions as models can vary.

You should also check the building regulations in your area to ensure it's legal to install your own surge protector before you start.

Step 1: Safety First

Before you begin, remove any metal jewelry from your hands and wrists to reduce the chances of accidental electrocution. Remove the panel from your main electrical panel and turn off the service disconnect. Remember that some of the wires will remain live even with the service disconnect off, so it's essential to avoid touching any wire. Place a piece of cardboard over the wires before you start working to protect yourself.

Step 2: Rearrange the Main Panel

Find the service disconnect. You'll see two circuit breakers right below it. Take them off and put them in a vacant space in the panel to make room for your surge protector's wires and circuit breaker. Connect the offset nipple to the whole-house surge protector and attach it to the wall beside the main panel.

Step 3: Wire the Surge Protector

When wiring a surge protector, it's important to keep the wires as short and straight as possible. Attach the white and green wires to the neutral bus screw terminals, and click the new circuit breaker into a space. You can now wire the surge protector's black wires to the circuit breaker.