PLP is accredited by Global-Mark to ISO9001-2008. The Engineering Department is responsible for ensuring that all processes followed within PLP are sufficiently robust to ensure that customer expectations are reflected in the final product. All product must comply with specifications originally demanded by the customer. Manufacturing processes are monitored, audited and improved, based on statistical process control techniques using SPSS software. The test lab employs externally calibrated equipment to test forces from 1 Newton to 500kN, industrial hardness testing, galvanising testing, fatigue testing and heat cycling for overhead conductors. The laboratory also tests and maintains mechanical strength quality levels on components for our range of racks.