Guides

Pakistani energy meter selection 2026: CT-operated (5A 100/5 ratio) vs direct-connect (up to 100A) energy meters, when to use each, BoM, IEC 62052-11 + 62053-21 compliance.

Pakistan solar net-metering Feb 2026 SRO deadline: pre-Feb installs keep Rs.25.32/unit export, post-Feb installs get Rs.8.13/unit. Lock-in rules, eligibility, payback impact.

Industrial 1500V solar Pakistan 2026: when to use 1500V vs 1000V class, DC breaker / fuse / SPD sizing for 100-500kW systems, IEC 60947-2 + IEC 61643-31 compliance.

LiFePO4 battery sizing Pakistani homes 2026: 5/10/15 kWh storage math, 48V vs 51.2V bank, BMS, DC breaker, DC SPD, BoM and total install cost.

Pakistani electrical earthing 2026: TT vs TN-C-S vs TN-S systems explained, copper rod sizing, earth pit construction, neutral-earth bond rules, IEC 60364-4-41 + DISCO compliance.

EV charger sizing Pakistani homes 2026: 7kW vs 22kW, single-phase vs 3-phase, charge time math, sanctioned load impact, IEC 61851 standards, DB BoM.

Commercial Maximum Demand penalty Pakistan 2026: NEPRA 15-min MD billing explained, calculation, ToU + power-factor + load-staggering tactics to cut industrial bills by 15-40%.

3-phase WiFi smart breaker installer guide Pakistan 2026: YCB1WIFI 4P 100A wiring, Tuya/Smart Life pairing, MD monitoring, remote trip, kWh logging — IEC 60947-2 compliant.

Solar DC protection selection tree Pakistan 2026: PV string fuse YCF8, DC breaker YCB8s, DC SPD YCS6-C — when to use each, sizing rules, IEC 60269-6 / IEC 60947-2 / IEC 61643-31.

Pakistan customs HS code reference 2026 for electrical imports: MCB 8536.20, MCCB, RCCB, SPD, contactor, energy meter, capacitor, DB box. FBR tariff bands, SRO references, importer checklist.